Arama Görseller Play YouTube Haberler Gmail Drive Takvim Daha fazlası »
Oturum açın
Ekran okuyucu kullanıcıları: Erişilebilirlik modu için bu bağlantıyı tıklayın. Erişilebilirlik modu aynı temel özelliklere sahiptir, ancak okuyucunuzla daha iyi çalışır.

Patentler

  1. Gelişmiş Patent Arama
Yayınlanma numarasıWO2013010459 A1
Yayın türüBaşvuru
Başvuru numarasıPCT/CN2012/078653
Yayın tarihi24 Oca 2013
Dosya kabul tarihi13 Tem 2012
Rüçhan tarihi18 Tem 2011
Yayınlanma numarasıPCT/2012/78653, PCT/CN/12/078653, PCT/CN/12/78653, PCT/CN/2012/078653, PCT/CN/2012/78653, PCT/CN12/078653, PCT/CN12/78653, PCT/CN12078653, PCT/CN1278653, PCT/CN2012/078653, PCT/CN2012/78653, PCT/CN2012078653, PCT/CN201278653, WO 2013/010459 A1, WO 2013010459 A1, WO 2013010459A1, WO-A1-2013010459, WO2013/010459A1, WO2013010459 A1, WO2013010459A1
Buluş SahipleriYijun Xu, 徐一珺, Xiaojuan YE, 叶小娟
Başvuru sahibiZhang, Xichun, 张曦春
Alıntıyı Dışa AktarBiBTeX, EndNote, RefMan
Dış Bağlantılar:  Patentscope, Espacenet
Self-oscillating inverter power supply having variable output frequency slicing and power supply having variable output current
WO 2013010459 A1
Özet
Provided in the present invention is a self-oscillating inverter power supply of reliable operations and reduced costs and having variable output frequency or output power. The power supply is provided with an inverter switching circuit, a coupling circuit consisting of multiple current transformers, a switch, and a load circuit, constituting a self-oscillating inverter power supply circuit. The current transformers are wound with coils on magnetic cores. Primary windings of the transformers are serial-connected or parallel-connected to each other, and respectively are connected to a power switch and load circuit of the inverter switching circuit. Each transformer is provided with two secondary windings, respectively serial-connected or parallel-connected to a base electrode of an upper and a lower power switching tube of the inverter switching circuit. The switch controls some of the current transformers in the coupling circuit consisting of the multiple current transformers to engage in or disengage from self-oscillation to change the self-oscillation frequency. An advantage of this is the provision of the self-oscillating power supply of reliable operations and having variable output frequency or output power, applicable in self-oscillating electronic ballast of a gas-discharge lamp, providing a light-dimming feature and relatively reduced costs. Also disclosed is a power supply having variable output current.
Hak Talepleri  şu dilden çevrildi: Çince  (OCR metni hatalar içerebilir)
权利要求书、 一种输出频率分段可变的自激振荡逆变电源, 其特征在于, 该电源设置有逆变开关电路、 多个电流互感器组成的耦合电路、 开关以及负载电路, 构成自激振荡逆变电源电路, 由开关控制多个电流互感器组成的耦合电路中的部分电流互感器参与或退出自激振荡来改变自激振荡频率。 Claims, a variable output frequency segment self-oscillation inverter, characterized in that the power switch is provided with an inverter circuit, the coupling circuit consisting of a plurality of current transformers, switches and the load circuit, constitutes self- oscillating inverter circuit, controlled by a switch consisting of a plurality of current transformer coupling circuit current transformer participate or withdraw from parts of the self-oscillation to change the self-oscillation frequency.
、 按权利要求1所述输出频率分段可变的自激振荡逆变电源, 其特征在于, 所述多个电流互感器组成的耦合电路包含至少两个耦合系数互相独立的电流互感器。 , According to the claim 1 segment variable output frequency self-oscillation inverter, characterized in that the coupling circuit consisting of a plurality of current transformer coupling coefficient comprises at least two mutually independent current transformer.
、 按权利要求1所述输出频率分段可变的自激振荡逆变电源, 其特征在于, 所述在电路中设置的多个电流互感器, 是在磁芯上绕制有线圈, 互感器的原边绕组相互串联, 分别与逆变开关电路中的功率开关管和负载电路连接; 每个互感器有二个副边绕组, 其中一个互感器的一个副边绕组与另一个互感器的一个副边绕组串联后, 经驱动电阻与逆变开关电路的上功率开关管的基极和发射极连接, 另两个副边绕组串联后经驱动电阻与逆变开关电路下功率开关管的基极和发射极连接, 藉助一开关, 控制至少一个电流互感器参与或退出自激振荡, 以控制电路的振荡频率。 , The output frequency according to claim 1 wherein the variable segment self-oscillation inverter, characterized in that the circuit provided in a plurality of current transformers, the magnetic core is wound in a coil, transformer The primary winding connected in series with each other and respectively connected to the inverter switching circuit in the power switch and the load circuit; Each transformer has two secondary windings, one of a secondary winding of a transformer and another transformer After the secondary windings are connected in series via a power inverter drive resistive switching circuit switch base and emitter connected, after the other two secondary windings connected in series via the base drive resistor and inverter switching circuit under the power switch pole and the emitter is connected, by means of a switch, controlling at least one current transformer participate or withdraw from the self-oscillation to control the oscillation frequency of the circuit.
、 按权利要求3所述的输出频率分段可变的自激振荡逆变电源,其特征在于,所述开关, 并接于一个电流互感器中线圈的原边绕组; 或者并接于一个电流互感器的至少一个副边绕组。 According to claim 3, wherein the output frequency of the self-oscillating variable segment power inverter, wherein said switch, and connected to the primary winding of a current transformer coil; and connected to a current or at least one secondary winding transformer.
、 按权利要求3所述的输出频率分段可变的自激振荡逆变电源, 其特征在于, 在任一个电流互感器中再绕有一个副边控制绕组, 该副边控制绕组由一个开关并接。 According to claim 3, wherein the output frequency of self-oscillation segmentation variable power inverter, characterized by either a current transformer and then around a secondary control winding, the secondary winding is controlled by a switch and pick.
、 按权利要求5所述的输出频率分段可变的自激振荡逆变电源, 其特征在于, 所述副边控制绕组串接一个开关、 或一个电阻, 或一个直流电源。 , According to claim 5, wherein the output frequency of the variable segments of the self-oscillation inverter, wherein the secondary control winding in series a switch, or a resistor, or a DC power supply.
、 按权利要求1所述的输出频率分段可变的自激振荡逆变电源, 其特征在于, 所述在电路中设置的多个电流互感器, 是在磁芯上绕制有线圈, 互感器的原边绕组相互串联, 分别与逆变开关电路的功率开关管和负载电路连接; 每个互感器有二个副边绕组, 由开关控制选择连接一个或多个电流互感器的副边绕组分别与逆变开关电路上、 下功率开关管的基极串联连接。 According to claim 1, wherein the output frequency of self-oscillation variable segment power inverter, wherein said set of a plurality of current transformers in the circuit, is wound on the core with a coil, mutual inductance the primary winding in series with each other and respectively connected to the power switch and the load circuit of the inverter switching circuit; Each transformer has two secondary windings, connected to the switch control by the selection of one or more current transformer secondary winding respectively, and the inverter switching circuit, under the base of the power switch connected in series.
、 按权利要求1所述的输出频率分段可变的自激振荡逆变电源, 其特征在于, 所述在电路中设置的多个电流互感器, 是在磁芯上绕制有线圈, 互感器的原边绕组相互并联, 由开关控制选择其中一个互感器的原边与逆变开关电路的功率开关管和负载电路连接; 每个互感器有二个副边绕组, 分别串联后分别与逆变开关电路上、 下功率开关管的基极串联连接, 或者分别并联, 由开关控制选择连接一个或多个电流互感器的副边权利要求书绕组与逆变开关电路上、 下功率开关管的基极串联连接。 According to claim 1, wherein the output frequency of self-oscillation variable segment power inverter, wherein said set of a plurality of current transformers in the circuit, is wound on the core with a coil, mutual inductance The primary winding is connected in parallel with each other, controlled by a switch to select one of the primary side of the transformer and the inverter power switch switching circuit and the load circuit is connected; and each transformer has two secondary windings, respectively, connected in series, respectively, after the inverse change the switch circuit, under the base of the power switch are connected in series or in parallel, respectively, select the connection to one or more of the current transformer secondary winding and the book claims inverter switching circuit switching is controlled by the lower power switch base are connected in series.
、 按权利要求1所述的输出频率分段可变的自激振荡逆变电源, 其特征在于, 所述开关是机械开关或电子开关。 , The output frequency according to claim 1, wherein a variable self-oscillating segment power inverter, wherein the switch is a mechanical switch or an electronic switch.
0、 按权利要求1所述的输出频率分段可变的自激振荡逆变电源, 其特征在于, 自激振荡逆变电源电路在上电启动或收到外来启动命令时, 由控制指令控制开关置于某个确定位置, 以达到一个确定频率。 0 of claim segmentation variable output frequency self-oscillating inverter 1, characterized in that the self-oscillating inverter circuit when the power to start or receive external start command from the control command control switch in a determined position, in order to achieve a certain frequency.
1、 按权利要求1所述的输出频率分段可变的自激振荡逆变电源, 其特征在于, 还包括控制模块和采样电路, 通过采样电路采集负载电路的电流采样, 反馈至控制模块, 控制模块控制P丽占空比使开关按占空比打开或闭合,以将电流平均值恒定在目标值附近。 1, according to claim 1, wherein the output frequency of the variable segments of the self-oscillation inverter, characterized by further comprising a control module and a sampling circuit, the sampling circuit is collected by the load circuit current sampling, feedback to the control module, P Lai control module controls the duty cycle of the switch according to the duty cycle of open or closed to the current average constant in the vicinity of the target. 、 如权利要求1所述的电源, 其特征在于, 还包含整流电路, 外部交流火线和零线经整流后连接至逆变开关电路, 控制模块的信号地连接到整流输出的负端, 将与外部交流火线或零线构成回路并有电压差的任何电压源经过一命令开关以一根导线连接到控制模块的信号输入端, 命令开关闭合时, 控制模块接收到该电压源的电压信号并将该信号看作控制命令,使所述开关闭合或打开,使电路工作于一自激振荡频率或一种按PWM 占空比形成的频率组合, 或使电路按一输出电流目标值工作, 当命令开关断开时, 控制模块将该电压信号的消失看作另一命令, 使所述开关打开或闭合, 使电路工作于另一自激振荡频率或按另一种P丽占空比形成的频率组合, 或使电路按另一输出电流目标值工作。 , Power supply as claimed in claim 1, characterized in that it further comprises a rectifying circuit, external communication line and neutral by the rectifier is connected to the inverter switching circuit, the control module signally connected to the negative terminal of the rectifier output, will FireWire or external AC neutral form a loop and any voltage difference between the voltage source via a command switch to a wire connected to the signal input of the control module, the command switch is closed, the control module receives the voltage signal and the voltage source The signal is seen as a control command to make the switch is closed or open, the circuit operates in a self-oscillation frequency of the frequency or a combination formed by the PWM duty cycle, or an output current of the circuit according to the target value of work, when the command When the switch is turned off, the voltage control signal disappears module seen another command to make the switch to open or closed, the circuit to the other self-oscillation frequency or by the formation of another P Lai duty cycle frequency combinations thereof, or the circuit output current target value by another job.
3、 一种气体放电灯电子镇流器,其特征在于,包括如权项1至权项12所述的任意一种自激振荡逆变电源。 3. A gas discharge lamp electronic ballast, characterized as comprising any of the claims 12 to Claim 1 a self-oscillating inverter.
、 一种输出电流可变的电源, 其特征在于, 该电源设置有逆变开关电路、 控制模块、 开关、 多个电流互感器、 谐振电感、 谐振电容、 输出整流电路、 以及直流负载, 谐振电感和谐振电容组成串联谐振电路, 谐振电容并接输出整流电路, 输出整流电路的输出并接直流负载, 控制模块按照外部命令使开关闭合或打开, 使至少一个电流互感器参与或退出自激振荡, 来改变自激振荡频率, 以改变输出至直流负载的电流大小。 An output current of the variable power supply, characterized in that the switching power supply is provided with an inverter circuit, a control module, a switch, a plurality of current transformers, resonant inductor, resonant capacitor, the output of the rectifier circuit, and the DC load, resonant inductor and a series resonant circuit composed of the resonant capacitor, the resonant capacitor and connected to the output rectifier circuit, the output of the rectifier circuit and an output connected to a DC load control module according to an external command so that the switch is closed or open, so that at least one current transformer involvement or exit the self-oscillation, to change the self-oscillation frequency to change the size of the output current to the DC load.
5、 如权利要求14所述的电源, 其特征在于, 直流负载包括至少一发光二极管。 5. The power supply of claim 14, wherein the DC load includes at least one light emitting diode.
6、 如权利要求14所述的电源, 其特征在于, 输出整流电路包含至少一个发光二极管。 6. The power supply of claim 14, characterized in that the output rectifier circuit comprises at least one light emitting diode. 7、 如权利要求14所述的电源, 其特征在于, 所述的多个电流互感器, 是在磁芯上绕制有线圈, 互感器的原边绕组相互串联后与谐振电感串联连接, 每个互感器有二个副边绕组, 分别串联后驱动逆变开关电路的上、 下功率开关管, 其中一个电流互感器或绕有权利要求书副边控制绕组, 开关并接任一电流互感器的一个绕组, 控制模块使开关打开或闭合, 使该电流互感器参与或退出自激振荡, 以控制电路的振荡频率。 7, the power supply as claimed in claim 14, wherein each, wherein said plurality of current transformers, are in series on the core wound with a coil, transformer primary winding is connected in series with the resonant inductor, a transformer having two secondary windings, respectively, on the rear tandem drive inverter switching circuit, when the power switch, wherein a current transformer or the secondary side winding has a book claim control winding, a switch, and take over the current transformer A winding, the control module so that the switch is open or closed, so that the current transformer to participate or withdraw from the self-oscillation to control the oscillation frequency of the circuit.
、 如权利要求14至17中任意一项所述的电源, 其特征在于, 控制模块输出PWM信号使开关按PWM信号闭合或断开, 使受开关控制的电流互感器按PWM信号退出或参与自激振荡, 使自激振荡频率按PWM信号的脉宽比在两个频率间切换, 通过改变PWM脉宽比来改变工作于两个自激振荡频率的时间比例, 来改变输出至直流负载的电流的平均值大小。 , As claimed in any one of the power supply of claim 14 to 17, characterized in that the control module outputs a PWM signal to switch on or off according to the PWM signal is closed, so that by the switching control of the current transformer according to the PWM signal to exit or involvement since oscillation, so that the self-oscillation frequency by pulse-width ratio of the PWM signal to switch between the two frequencies by changing the PWM pulse width ratio to change the time to work on two self-oscillation frequency proportional to change the current output to the DC load The average value of size.
、 如权利要求18所述的电源,其特征在于,还包括将输出电流平均值的采样信号反馈到控制模块的采样模块, 控制模块据采样值和目标值的差异改变其输出PWM信号的脉宽比, 使输出至直流负载的电流的平均值恒定在目标值附近。 , The power supply of claim 18, characterized in that it further comprises sampling signal average output current is fed back to the control module sampling module, the control module according to the sampling difference value and the target changes its output pulse width of the PWM signal than that of the average of the output to the DC load current constant in the vicinity of the target.
、 如权利要求14或18或19所述的输出电流可变的电源,其特征在于,还包含整流电路, 外部交流火线和零线经整流后连接至逆变开关电路, 控制模块的信号地连接到整流输出的负端, 将与外部交流火线或零线构成回路并有电压差的任何电压源经过一命令开关以一根导线连接到控制模块的信号输入端, 命令开关闭合时, 控制模块接收到该电压源的电压信号并将该信号看作控制命令, 使所述开关闭合或打开, 使电路工作于一自激振荡频率或一种按P丽占空比形成的频率组合, 或使电路按一输出电流目标值工作, 当命令开关断开时, 控制模块将该电压信号的消失看作另一命令, 使所述开关打开或闭合, 使电路工作于另一自激振荡频率或按另一种P丽占空比形成的频率组合, 或使电路按另一输出电流目标值工作。 , Such as 14 or 18 or 19, wherein the output current of the variable power supply according to claim, characterized in that it further comprises a rectifying circuit, external communication line and neutral by the rectifier is connected to the inverter switching circuit, the control module signally connected to the negative terminal of the rectifier output, constituting the external AC FireWire or any neutral circuit and a voltage source through a voltage difference command switches to a wire connected to the signal input of the control module, the command switch is closed, the control module receives voltage signal to the voltage source and the signal is seen as a control command, so that the switch is closed or open, the circuit operates in a self-oscillation frequency of the frequency or a combination formed by P Lai duty cycle, or the circuit current target value according to an output job, when the command switch is turned off, the voltage of the control signal disappears module is regarded as another command, so that the switch is open or closed, the circuit is self-oscillating frequency to another or alternatively the frequency of a combination of P Lai duty cycle formed or the circuit output current target by another job.
Açıklama  şu dilden çevrildi: Çince  (OCR metni hatalar içerebilir)

说明书输出频率分段可变的自激振荡逆变电源、 输出电流可变的电源技术领域 Manual segmentation variable output frequency self-oscillating inverter output current variable power technology field

本发明涉及一种输出频率分段可变的自激振荡逆变电源, 尤指一种具有调光功能的气体放电灯自激振荡电子镇流器逆变电源及输出电流可变的电源。 The present invention relates to a variable output frequency segmented self-oscillating inverter, especially one with a gas discharge lamp dimming function self-oscillating electronic ballast inverter and output current variable power supply.

背景技术 BACKGROUND

将直流转变成交流的自激振荡逆变电源应用广泛, 特别常见于低成本的气体放电灯自激振荡电子镇流器或电子变压器中。 DC into AC power inverter self-oscillation is widely used, particularly common in low-cost gas discharge lamp self-oscillating electronic ballast or electronic transformer. 但是自激振荡逆变电路要实现振荡频率可调或输出功率可调, 则比较困难。 But the self-oscillating inverter circuit to achieve the oscillation frequency is adjustable or adjustable output power, is more difficult.

美国专利US5596247提出了一种比较简单的自激振荡电子镇流器调光方案, 但该方案将造成半桥上下管的开通时间不同, 使上下管工作在不对称状态, 对电路可靠性带来影响。 US Patent US5596247 proposes a relatively simple self-oscillating electronic ballast dimming program, but the program will result in different half-bridge opening time down the tube, so that the upper and lower pipe work in asymmetric state, brought on circuit reliability affected.

另一美国专利US6696803 披露了一种能可靠工作的可改变工作频率的自激振荡电源方案, 但该方案中辅助电源电压的波动将影响其振荡频率和输出功率, 因此对辅助电源的设计提出了较高的要求, 成本相对较高。 Another US Patent US6696803 discloses a reliable job can change the operating frequency of the self-oscillating power program, but the program in the auxiliary power supply voltage fluctuations will affect the oscillation frequency and output power, so the proposed design of the auxiliary power supply higher requirements, cost is relatively high.

中国实用新型专利CN91217582. 6提出一种廉价的分段调光自激振荡电子镇流器,该方案设想利用拨动开关短接振荡磁环的不同抽头, 实现分段调光。 Chinese utility model patents CN91217582. 6 presents a low-cost self-oscillating segment dimming electronic ballasts, the program envisages the use of a toggle switch shorting ring oscillator different tap to achieve sub-dimming. 但实际上开关短接部分绕组后将大大降低输出电压, 因而无法保证电路的可靠工作。 But in fact the switching section after winding shorted significantly reduce the output voltage, and therefore can not ensure reliable operation of the circuit.

发明内容 SUMMARY

为了克服上述不足之处, 本发明的主要目的旨在提供一种能可靠工作的输出频率或输出功率可变的自激振荡电源。 In order to overcome the above deficiencies, the main object of the present invention to provide a reliable working output frequency or output power variable self-oscillation power.

本发明要解决的技术问题是: 如何使自激振荡逆变电路能工作在不同的振荡频率, 并且能按要求改变工作频率; 当负载电路形成非纯阻性的等效负载时, 若电路能改变工作频率, 就能改变输出功率。 The present invention to solve the technical problem is: how to make the self-oscillating inverter circuit can operate at different oscillation frequencies, and can be changed as desired operating frequency; when the load circuit is formed of non-pure resistive equivalent load, if the circuit can change the operating frequency, you can change the output power.

通常的自激振荡逆变电路的工作原理, 是利用一个磁环作为电流互感器, 将逆变输出电流耦合到磁环副边用于驱动逆变开关管, 形成自激振荡。 Usually works self-oscillating inverter circuit, is the use of a ring as a current transformer, the inverter output current is coupled to the secondary ring is used to drive the inverter switches to form a self-oscillation. 当电路其他部分的参数确定时, 逆变输出电流到磁环副边耦合关系的不同将产生不同的自激振荡频率, 例如磁环的饱和深度不同会导致自激振荡频率不同。 When the rest of the circuit to determine the parameters, the inverter output current to different magnetic coupling between the secondary side will produce a different self-oscillation frequency, for example, different magnetic saturation depth will lead to different self-oscillation frequency.

基于以上原理, 本发明的目的是这样实现的: Based on the above principle, an object of the invention is achieved by:

一种输出频率分段可变的自激振荡逆变电源, 该电源设置有逆变开关电路、 多个电流互感器组成的耦合电路、 开关以及负载电路, 构成自激振荡逆变电源电路, 由开关控制多个电说明书流互感器组成的耦合电路中的部分电流互感器参与或退出自激振荡来改变自激振荡频率。 An output frequency segmentation variable self-oscillating inverter, the power switch is provided with an inverter circuit, coupled circuits, switches and load circuit composed of a plurality of current transformers, constitute self-oscillating inverter circuit, by manual switch control multiple electrical current transformer coupled circuits consisting of parts of the current transformer to participate or withdraw from the self-oscillation frequency to change the self-oscillation.

所述多个电流互感器组成的耦合电路包含至少两个耦合系数互相独立的电流互感器。 Coupled circuit consisting of the plurality of current transformer coupling coefficient comprises at least two mutually independent current transformer. 所述在电路中设置的多个电流互感器, 是在磁芯上绕制有线圈, 互感器的原边绕组相互串联, 分别与逆变开关电路中的功率开关管和负载电路连接; 每个互感器有二个副边绕组, 其中一个互感器的一个副边绕组与另一个互感器的一个副边绕组串联后, 经驱动电阻与逆变开关电路的上功率开关管的基极和发射极连接, 另两个副边绕组串联后经驱动电阻与逆变开关电路下功率开关管的基极和发射极连接, 藉助一开关, 控制至少一个电流互感器参与或退出自激振荡, 以控制电路的振荡频率。 Disposed in the circuit of the plurality of current transformers, is wound on the core with a coil, the primary winding of the transformer in series with each other, respectively connected to the inverter switching circuit in the power switch and the load circuit; Each transformer has two secondary windings, wherein after a secondary winding and a secondary winding of a transformer of another transformer in series, the base drive resistors and the power inverter switching circuit and emitter switch connected, via a resistor and an inverter driving the switching circuit when the power switch of the base and the emitter is connected after the other two secondary windings connected in series, by means of a switch, controlling at least one current transformer participate in self-excited oscillation or exit to the control circuit oscillation frequency.

所述开关, 并接于一个电流互感器中线圈的原边绕组; 或者并接于一个电流互感器的至少一个副边绕组。 The switch and connected to the primary winding of a current transformer coil; or a current transformer and connected to at least one secondary winding.

在任一个电流互感器中再绕有一个副边控制绕组, 该副边控制绕组由一个开关并接。 In either a current transformer and then around a secondary control winding, the secondary winding is controlled by a switch and connected. 所述副边控制绕组串接一个开关、 或一个电阻, 或一个直流电源。 Said secondary winding in series with a control switch, or a resistor, or a DC power supply.

所述在电路中设置的多个电流互感器, 是在磁芯上绕制有线圈, 互感器的原边绕组相互串联, 分别与逆变开关电路的功率开关管和负载电路连接; 每个互感器有二个副边绕组, 由开关控制选择连接一个或多个电流互感器的副边绕组分别与逆变开关电路上、 下功率开关管的基极串联连接。 Disposed in the circuit of the plurality of current transformers, is wound on the core with a coil, the primary winding of the transformer in series with each other, respectively connected to the power switch and the load circuit of the inverter switching circuit; each mutual inductance has two secondary windings, connected by the switch control to select one or more of the current transformer secondary winding, respectively, on the inverter switching circuit and lower power switches connected in series with the base.

所述在电路中设置的多个电流互感器, 是在磁芯上绕制有线圈, 互感器的原边绕组相互并联,由开关控制选择其中一个互感器的原边与逆变开关电路的功率开关管和负载电路连接; 每个互感器有二个副边绕组, 分别串联后分别与逆变开关电路上、 下功率开关管的基极串联连接, 或者分别并联, 由开关控制选择连接一个或多个电流互感器的副边绕组与逆变开关电路上、 下功率开关管的基极串联连接。 Disposed in the circuit of the plurality of current transformers, is wound on the core with a coil, the primary winding of the transformer parallel to each other, wherein the power switch is controlled by selecting one of the primary side of the transformer and the inverter switching circuit switch and load circuit connected; each transformer has two secondary windings, and the inverter switching circuit, when the power switch connected in series with the base, respectively, after each series or parallel, respectively, connected by a switch control to select one or a plurality of current transformer secondary winding and the inverter switching circuit, under the base of the power switch connected in series.

所述开关是机械开关或电子开关。 The switch is a mechanical switch or an electronic switch.

自激振荡逆变电源电路在上电启动或收到外来启动命令时, 由控制指令控制开关置于某个确定位置, 以达到一个确定频率。 Self-oscillating inverter circuit when the power to start or receive external start command from the control command to determine the location of a control switch in order to achieve a certain frequency.

较佳地, 还包括控制模块和采样电路, 通过采样电路采集负载电路的电流采样, 反馈至控制模块, 控制模块控制PWM占空比使开关按占空比打开或闭合, 以将电流平均值恒定在目标值附近。 Preferably, further comprising a control module and a sampling circuit, the sampling circuit samples collected by the current load circuit, a feedback to the control module, the control module controls the duty cycle of the PWM duty cycle so that the switch open or closed according to the average current constant near the target.

较佳地, 还包含整流电路, 外部交流火线和零线经整流后连接至逆变开关电路, 控制模块的信号地连接到整流输出的负端, 将与外部交流火线或零线构成回路并有电压差的任何电压源经过一命令开关以一根导线连接到控制模块的信号输入端, 控制模块输出连接开关, 命说明书令开关闭合时, 控制模块接收到该电压源的电压信号并将该信号看作控制命令, 使所述开关闭合或打开, 使电路工作于一自激振荡频率或一种按P丽占空比形成的频率组合, 或使电路按一输出电流目标值工作, 当命令开关断开时, 控制模块将该电压信号的消失看作另一命令, 使所述开关打开或闭合, 使电路工作于另一自激振荡频率或按另一种P丽占空比形成的频率组合, 或使电路按另一输出电流目标值工作。 Preferably, further comprising a rectifier circuit, external communication line and neutral by the rectifier is connected to the inverter switching circuit, the control module signally connected to the negative terminal of the rectifier output, constituting the circuit and the external communication line and a FireWire or zero any voltage source through a voltage difference command switches to a wire connected to the signal input of the control module, the control module connected to the switch output, so that manual command switch is closed, the control module receives the voltage signal of the voltage source and the signal seen as a control command to make the switch is closed or open, the circuit operates in a self-oscillation frequency of the frequency or a combination formed by P Lai duty cycle, or an output current of the circuit according to the target value of work, when the command switch When turned off, the voltage control signal disappears module seen another command to make the switch to open or closed, the circuit to the other self-oscillation frequency by frequency or in combination with another form P Lai duty cycle , or the circuit output current target value by another job.

一种气体放电灯电子镇流器, 包括如上述任意一种自激振荡逆变电源。 A gas discharge lamp electronic ballast, including any of the above as a self-oscillating inverter.

一种输出电流可变的电源, 该电源设置有逆变开关电路、 控制模块、 开关、 多个电流互感器、 谐振电感、 谐振电容、 输出整流电路、 以及直流负载, 谐振电感和谐振电容组成串联谐振电路, 谐振电容并接输出整流电路, 输出整流电路的输出并接直流负载, 控制模块按照外部命令使开关闭合或打开, 使至少一个电流互感器参与或退出自激振荡, 来改变自激振荡频率, 改变输出至直流负载的电流大小。 An output current of the variable power supply, the power supply switch is provided with an inverter circuit, a control module, a switch, a plurality of current transformers, resonant inductor, resonant capacitor, the output of the rectifier circuit, and the DC load, consisting of the resonant inductor and resonant capacitor in series resonant circuit, and the resonant capacitor connected to the output rectifier circuit, the output and the output of the rectifier circuit connected DC load control module according to an external command to make the switch is closed or open, so that at least one current transformer participate or withdraw from the self-oscillation, to change the self-oscillation frequency, change the output to the current size of the DC load.

较佳地, 直流负载包括至少一发光二极管。 Preferably, the DC load includes at least one light emitting diode.

较佳地, 输出整流电路包含至少一个发光二极管。 Preferably, the output of the rectifier circuit includes at least one light emitting diode.

所述的多个电流互感器, 是在磁芯上绕制有线圈, 互感器的原边绕组相互串联后与谐振电感串联连接, 每个互感器有二个副边绕组, 分别串联后驱动逆变开关电路的上、 下功率开关管, 其中一个电流互感器或绕有副边控制绕组, 开关并接任一电流互感器的一个绕组, 控制模块使开关打开或闭合, 使该电流互感器参与或退出自激振荡, 以控制电路的振荡频率。 Said plurality of current transformers are wound on the core has primary winding coils, transformers and resonant inductor in series after series connection, each transformer has two secondary windings, respectively, after the reverse tandem drive variants of the switching circuit, when the power switch, which has a current transformer secondary winding or control winding, switch and took a winding of a current transformer, the control module so that the switch is open or closed, so that the current transformer participate or Exit self-oscillation to control the oscillation frequency of the circuit.

较佳地, 控制模块输出PWM信号使开关按P丽信号闭合或断开, 使受开关控制的电流互感器按P丽信号退出或参与自激振荡, 使自激振荡频率按PWM信号的脉宽比在两个频率间切换, 通过改变P丽脉宽比来改变工作于两个自激振荡频率的时间比例, 来改变输出至直流负载的电流的平均值大小。 Preferably, the control module output PWM signal to switch the signal by P Korea closed or disconnected, so that by switching control of the current transformer signal by P Korea quit or participate self-oscillation, so that the self-oscillation frequency of the PWM signal by width than to switch between two frequencies, by changing the pulse width P Li ratio to change the working at two time proportional self-oscillation frequency to change the output to the average size of the DC load current.

较佳地, 该电源还包括将输出电流平均值的采样信号反馈到控制模块的采样模块, 控制模块据采样值和目标值的差异改变其输出P丽信号的脉宽比, 使输出至直流负载的电流的平均值恒定在目标值附近。 Preferably, the power supply further comprises a current average value of the sampled output signal is fed back to the control module sampling module, the control module according to the sampling difference value and the target change its output signal is pulse width ratio P Li, the output to DC load average current constant in the vicinity of the target value.

所述电源还包含整流电路, 外部交流火线和零线经整流后连接至逆变开关电路, 控制模块的信号地连接到整流输出的负端, 将与外部交流火线或零线构成回路并有电压差的任何电压源经过一命令开关以一根导线连接到控制模块的信号输入端, 控制模块输出连接开关, 命令开关闭合时, 控制模块接收到该电压源的电压信号并将该信号看作控制命令, 使所述开关闭合或打开, 使电路工作于一自激振荡频率或一种按PWM占空比形成的频率组合, 或使电路按一输出电流目标值工作, 当命令开关断开时, 控制模块将该电压信号的消失看作另一命令, 说明书使所述开关打开或闭合, 使电路工作于另一自激振荡频率或按另一种P丽占空比形成的频率组合, 或使电路按另一输出电流目标值工作。 The power supply further comprises a rectifying circuit, external communication line and neutral by the rectifier is connected to the inverter switching circuit, the control module signally connected to the negative terminal of the rectifier output, constituting the circuit and the external communication line and the line of fire or zero voltage Any difference between the voltage source via a command switch to a wire connected to the signal input of the control module, the control module output connection switch, the command switch is closed, the control module receives the voltage of the voltage source and the signal is considered as the control signal command, so that the switch is closed or open, the circuit operates in a self-oscillation frequency of a frequency or a combination formed by the PWM duty cycle, or the output current of the circuit according to a target work, when the command switch is turned off, The control module voltage signal disappears seen another command, brochures make the switch open or closed, the circuit operates in another self-oscillation frequency by frequency or in combination with another form P Lai duty cycle, or to make circuit output current by another target.

本发明的有益效果是: The advantages are:

本发明提供了一种能可靠工作的输出频率或输出功率可变的自激振荡电源, 或具有调光功能的气体放电灯自激振荡电子镇流器, 而且本发明由于采用自激振荡的方式来实现输出频率或输出功率的改变, 与他激振荡电路相比较, 达到了成本相对较低的功效。 The present invention provides a reliable work output frequency or output variable of self-oscillating power, or gas with a discharge lamp dimming function self-oscillating electronic ballast, and the invention is the use of self-oscillation due to the way to effect a change in the output frequency or output power, compared with the separately excited oscillation circuit, to achieve the relatively low cost effectiveness. 本发明也可以提出一种输出电流可变的电源。 The present invention may also propose a variable output current of the power supply.

附图说明 Brief Description

下面结合附图和实施例对本发明进一步说明。 Below in connection with the accompanying drawings and embodiments of the present invention is further illustrated.

图1是本发明的总体结构的方框图; Figure 1 is a block diagram showing the overall structure of the present invention;

图2是本发明的一实施例示意图; Figure 2 is a schematic view of embodiment of the present invention;

图3是本发明的另一实施例示意图; Figure 3 is a schematic diagram of another embodiment of the present invention;

图4是本发明的另一实施例示意图; Figure 4 is a schematic view of another embodiment of the present invention;

图5是本发明的另一实施例示意图; Figure 5 is a schematic view of another embodiment of the present invention;

图6是本发明的另一实施例示意图; Figure 6 is a schematic view of another embodiment of the present invention;

图7是本发明的另一实施例示意图; Figure 7 is a schematic view of another embodiment of the present invention;

图8是本发明用于电子镇流器的一实施例的具体电路图; FIG. 8 is a specific circuit diagram of the present invention for an electronic ballast to an embodiment;

图9是本发明一种启动过程的示意图; Figure 9 is a schematic view of a startup process of the present invention;

图10为本发明一种LED驱动电源的实例示意图。 Figure 10 examples of the present invention, a LED driving power supply of FIG.

附图中标号说明: Drawings label instructions:

101—逆变开关电路; 101- inverter switching circuit;

102—多个电流互感器组成的耦合电路; Current transformer coupled circuit consisting of more than 102-;

103—负载电路; 104—开关; 103- load circuit; 104- switch;

201—上管; 202—下管; 201- tube; 202- down tube;

203—负载匹配电路; 204—控制电路; 205—电控制开关; 203- load matching circuit; 204- control circuit; 205- electrical control switch;

206a—磁环原边; 206b—磁环上管驱动副边; 206a- primary ring; 206b- ring on the secondary side of the tube-driven;

206c—磁环下管驱动副边; Under 206c- secondary magnetic tube drive;

207a—磁环原边; 207b—磁环上管驱动副边; 207a- primary ring; 207b- ring on the secondary side of the tube-driven;

207c—磁环下管驱动副边; Under 207c- secondary magnetic tube drive;

208—上管驱动电阻; 209—下管驱动电阻; 说明书 Tube drivers on 208- resistance; 209- drive down tube resistance; instructions

210—隔直电容上; 211—隔直电容下; 210- straight across the capacitor; 211- under blocking capacitors;

301—上管; 302—下管; 303—负载匹配电路; The 301 tube; 302 down tube; 303- load matching circuit;

304—控制电路; 305—双刀电控制开关; 304- control circuit; 305-pole electrical control switches;

306a—磁环原边; 306b—磁环上管驱动副边; 306a- primary ring; 306b- ring on the secondary side of the tube-driven;

306c—磁环下管驱动副边; Under 306c- secondary magnetic tube drive;

307a—磁环原边; 307b—磁环上管驱动副边; 307a- primary ring; 307b- ring on the secondary side of the tube-driven;

307c—磁环下管驱动副边; Under 307c- secondary magnetic tube drive;

308—上管驱动电阻; 309—下管驱动电阻; Tube drivers on 308- resistance; 309- drive down tube resistance;

310—隔直电容上; 311—隔直电容下; 310- straight across the capacitor; under straight across the capacitor 311;

401—上管; 402—下管; The 401- pipe; 402- down tube;

403—负载匹配电路; 404—隔直电容上; 405—隔直电容下; 406a—磁环原边; 406b—磁环上管驱动副边; Load matching circuit 403; 404 across the capacitors; Capacitor 405 straight across the next; 406a- primary ring; 406b- ring on the secondary side of the tube driver;

406c—磁环下管驱动副边; Under 406c- secondary magnetic tube drive;

407a—磁环原边; 407b- -磁环上管驱动副边; 407a- primary ring; 407b- - the magnetic tube drive the secondary side;

407c—磁环下管驱动副边; 407d—磁环控制绕组; 408—上管驱动电阻; 409—下管驱动电阻; 410—控制开关; Tube drivers under 407c- secondary ring; 407d- control winding ring; the 408 tube-driven resistance; 409- drive down tube resistance; 410- control switch;

501—上管; 502—下管; The 501- pipe; 502- down tube;

503—负载匹配电路; 504—控制电路; 503- load matching circuit; 504- control circuit;

505a—联动开关上管部分; 505b—联动开关下管部分; 506a—磁环原边; 506b—磁环上管驱动副边; 506c—磁环下管驱动副边; 505a- linkage switch tube section; pipe under section 505b- interlocking switch; 506a- primary ring; 506b- ring on the secondary side of the tube-driven; under 506c- secondary magnetic tube drive;

507a—磁环原边; 507b—磁环上管驱动副边; 507c—磁环下管驱动副边; 507a- primary ring; 507b- ring on the secondary side of the tube-driven; under 507c- secondary magnetic tube drive;

508—上管驱动电阻; 509—下管驱动电阻; Tube drivers on 508- resistance; 509- drive down tube resistance;

510—隔直电容上; 511—隔直电容下; Straight across the capacitor 510; 511- compartment under capacitors;

601—上管; 602—下管; The 601- pipe; 602- down tube;

603—负载匹配电路; 604—控制电路; 603- load matching circuit; 604- control circuit;

605a—联动开关上管部分; 605b—联动开关下管部分; 605c—联动开关磁环原边部分; 说明书 605a- switch linkage tube section; pipe under section 605b- interlocking switch; 605c- linkage magnetic switch primary section; Instructions

606a—磁环原边; 606b—磁环上管驱动副边; 606a- primary ring; 606b- ring on the secondary side of the tube-driven;

606c—磁环下管驱动副边; Under 606c- secondary magnetic tube drive;

607a—磁环原边; 607b—磁环上管驱动副边; 607a- primary ring; 607b- ring on the secondary side of the tube-driven;

607c—磁环下管驱动副边; Under 607c- secondary magnetic tube drive;

608—上管驱动电阻; 609—下管驱动电阻; Tube drivers on 608- resistance; 609- drive down tube resistance;

610—隔直电容上; 611—隔直电容下; 610- straight across the capacitor; 611- under blocking capacitors;

701—上管; 702—下管; 701- tube; 702- down tube;

703—负载匹配电路; 704—控制电路; 703- load matching circuit; 704- control circuit;

705—双位开关; 705- double-switch;

706a—磁环原边; 706b—磁环上管驱动副边; 706a- primary ring; 706b- ring on the secondary side of the tube-driven;

706c—磁环下管驱动副边; Under 706c- secondary magnetic tube drive;

707a—磁环原边; 707b—磁环上管驱动副边; 707a- primary ring; 707b- ring on the secondary side of the tube-driven;

707c—磁环下管驱动副边; Under 707c- secondary magnetic tube drive;

708—上管驱动电阻; 709—下管驱动电阻; Tube drivers on 708- resistance; 709- drive down tube resistance;

710—隔直电容上; 711—隔直电容下; 710- straight across the capacitor; 711- DC blocking capacitor lower;

D1—整流电路或PFC电路; D1- PFC rectifier circuit or circuits;

R1—起振充电电阻; C1一起振电容; D2—双向触发二极管; R1- Start-up charging resistors; C1 capacitor oscillator together; D2- diac;

D3—二极管; R2—半桥上管驱动电阻; R3—半桥下管驱动电阻; D3- diode; R2- half-bridge driver resistance tube; R3- half-bridge driver resistance tube;

Q1—半桥上管; Q2—半桥下管; Tla—振荡磁环T1原边; Q1- half bridge canal; Q2- half bridge canal; Tla- oscillating magnetic T1 primary side;

Tib—振荡磁环T1上管驱动副边; Tic一振荡磁环T1下管驱动副边; Tib- oscillating magnetic T1 tube drive on the secondary side; under Tic an oscillating magnetic tube drive T1 secondary;

T2a—振荡磁环T2原边; T2b—振荡磁环T2上管驱动副边; T2a- oscillating magnetic T2 primary; T2b- oscillating magnetic T2 tube drive on the secondary side;

T2c—振荡磁环T2下管驱动副边; T2d—振荡磁环T2控制绕组; T2c- shaking tube drive the secondary ring T2; T2d- T2 magnetic oscillation control winding;

S1—控制开关; VDC—辅助直流电压电源; R4—辅助电阻; S1- control switch; VDC- auxiliary DC voltage source; R4- secondary resistance;

Lr一谐振电感; TL一荧光灯; Cr一谐振电容; A resonant inductor Lr; TL a fluorescent lamp; Cr a resonant capacitor;

C2—隔直电容上; C3—隔直电容下; C2- straight across the capacitor; C3- compartment under capacitors;

901—上电启动或收到启动指令; 901- power-up or after receiving a start command;

902—置开关于产生启动频率的位置; 902- set to open on the location of a Start frequency;

903—启动完成吗? 903- startup is complete it?

904—按控制命令, 置开关于产生所需频率的位置。 904- by control commands, set to open on the location of the desired frequency generation.

D1001—整流电路; Z1001—稳压管; 说明书 D1001- rectifier circuit; Z1001- regulator; Instructions

R1001—起振充电电阻; C1001—起振电容; D1002—双向触发二极管; R1001- start-up charging resistors; C1001- start-up capacitor; D1002- diac;

D1003—二极管; R1002 半桥上管驱动电阻; D1003- diode; R1002 half-bridge driver resistance tube;

R1003 半桥下管驱动电阻; R1003 half-bridge driver resistance tube;

Q1001—半桥上管; Q1002—半桥下管; Q1001- half bridge canal; Q1002- half bridge canal;

TlOOla—振荡磁环T1001原边; TlOOla- oscillating magnetic T1001 primary;

TlOOlb—振荡磁环T1001上管驱动副边; TlOOlb- oscillating magnetic T1001 tube drive on the secondary side;

TlOOlc—振荡磁环T1001下管驱动副边; TlOOlc- shaking tube drive the secondary ring T1001;

T1002a—振荡磁环T1002原边; T1002a- oscillating magnetic T1002 primary;

T1002b—振荡磁环T1002上管驱动副边; T1002b- oscillation on the secondary ring T1002 tube drive;

T1002c—振荡磁环T1002下管驱动副边; T1002c- oscillating tube drive under the secondary ring T1002;

DC1001—辅助直流电压源; R1004 电阻; DC1001- auxiliary DC voltage source; R1004 resistance;

C1002 半桥电容上; C1003 半桥电容下; On the half-bridge capacitor C1002; C1003 next half-bridge capacitor;

LrlOOl—谐振电感; C1004—谐振电容; D1004—输出整流电路; LrlOOl- resonant inductor; C1004- resonant capacitor; D1004- output rectifier circuit;

半导体发光器件组; Group semiconductor light emitting device;

ASIC—控制模块; VCMD—命令电源; S1001—命令开关; ASIC- control module; VCMD- Command Power; S1001- command switches;

S1002—电控开关。 S1002- electronically controlled switch.

具体实施方式 DETAILED DESCRIPTION

请参阅附图1所示,本发明的输出频率分段可变的自激振荡电源由逆变开关电路(101)、 多个电流互感器组成的耦合电路(102)、 负载电路(103 ) 和开关(104) 构成, 其中逆变开关电路(101 ) 的输出连接至多个电流互感器组成的耦合电路(102)和负载电路(103)组成的串联回路, 多个电流互感器组成的耦合电路(102 ) 输出连接至逆变开关电路(101 ) 作为逆变开关电路(101 ) 的驱动。 Refer to the drawings, the coupling circuit (102) the output frequency of the present invention a variable self-oscillating segment power by the inverter switch circuit (101), consisting of a plurality of current transformers, the load circuit (103) 1 and switch (104), and outputs a switching circuit in which the inverter (101) is connected to the coupling circuit (102) and a load circuit (103) consisting of a series circuit composed of a plurality of current transformers, the coupling circuit consisting of a plurality of current transformers ( 102) output is connected to an inverter switching circuit (101) as an inverter switching circuit (101) is driven.

其中外部控制命令可控制开关(104), 使多个电流互感器组成的耦合电路(102 )中的部分互感器参与或退出自激振荡, 来改变自激振荡频率。 External control commands which control switch (104), consisting of a plurality of current transformer coupling circuit (102) transformers participate or withdraw from parts of the self-oscillation, to change the self-oscillation frequency. 所述的多个电流互感器组成的耦合电路(102) 至少由二个耦合系数相互独立的电流互感器组成。 Coupling circuit (102) of said plurality of current transformer consisting of at least two mutually independent coupling coefficient current transformer composition.

某些负载在上电启动时对输至负载的频率或功率有特定要求, 只有符合要求的频率或功率才能保证负载正常启动, 在连接这类负载时, 附图1所示的输出频率或输出功率可变的自激振荡电源, 可以按照负载启动特性对启动频率的要求, 设置多个电流互感器组成的耦合电路(102)中某几个特定互感器参与振荡时的频率为该启动频率;然后按照附图9所述的方法, 在所述自激振荡电源上电启动时或外部命令给予启动指令时, 使开关(104)控制上述特定互说明书感器参与振荡, 从而产生该启动振荡频率。 Some of the load when the power starts to lose power to the load frequency or have specific requirements, only to meet the requirements of frequency or power to ensure that the load normally starts when you connect this type of load, an output frequency or output figures shown The self-oscillating power supply variable, you can follow the startup characteristics of the starting frequency load requirements, set the coupling circuit composed of a plurality of current transformers (102) to participate in the oscillation frequency of a few specific time for the start frequency transformers; Then the method according to the accompanying drawings. 9, when the self-oscillating power supply when the external command to start or a start command given, the switch (104) controlling said specific mutual manual involvement oscillation sensor, thereby generating the start oscillation frequency . 直至负载启动完成, 再按照控制命令的要求, 置开关(104) 于产生所需频率的位置。 Until the load starts to complete, and then follow the requirements of the control command, set the switch (104) to produce the desired frequency position.

逆变开关电路(101 )的输入为直流输入, 可来自前级整流或PFC电路, 或来自外部直流电源。 Input of the inverter switching circuit (101) is a DC input, or from a preceding PFC rectifier circuit, or from an external DC power supply. 逆变开关电路(101 ) 获得直流输入后, 由逆变开关电路(101 ) 内部起振线路或外部电路产生起振触发脉冲, 使逆变开关电路(101 )开始工作, 将直流输入转变成交流输出至多个电流互感器组成的耦合电路(102)和负载电路(103) 构成的串联回路, 其中多个电流互感器组成的耦合电路(102 ) 自逆变开关电路(101 ) 输出的交流电流产生耦合输出连接至逆变开关电路(101 ), 用于驱动逆变开关电路(101 ), 产生自激振荡。 After the inverter switching circuit (101) to obtain direct input from the inverter switching circuit (101) internal or external line start-up start-up circuit generates a trigger pulse, the inverter switching circuit (101) to work, will be transformed into AC to DC input output to the coupling circuit (102) and a load circuit (103) connected in series circuit structure, wherein the coupling circuit consisting of a plurality of current transformers (102) composed of a plurality of current transformers since AC current of the inverter switching circuit (101) produces the output coupled output is connected to the inverter switching circuit (101) for driving the inverter switching circuit (101), generate self-oscillation. 当外部控制命令控制开关(104),使多个电流互感器组成的耦合电路(102 )中的部分互感器参与或退出自激振荡时, 逆变开关电路(101 )输出至负载电路(103 )的电流振荡频率即发生改变; 当负载电路(103) 为非纯阻性时, 电流振荡频率的改变导致输出至负载电路(103 ) 的功率改变。 When an external control command controls switches (104), consisting of a plurality of current transformer coupling circuit (102) participating in the transformer part or exit the self-oscillation, the output of the inverter switching circuit (101) to the load circuit (103) i.e., the current oscillation frequency changes; when the load circuit (103) is a non purely resistive, the change in the current oscillation frequency causes the output to the load circuit (103) of the power change.

附图2是本发明的一实施例示意图。 Figure 2 is an embodiment of the present invention. Fig. 上管(201 )、 下管(202)、 隔直电容上(210)和隔直电容下(211 )组成半桥逆变电路, 上管(201 )和下管(202)连接中点输出依次连接至磁环原边(206a)、 磁环原边(207a) 和负载匹配电路(203), 负载匹配电路(203) 另一端与隔直电容上(210) 和隔直电容下(211 ) 的连接点相连; 电路中设置有两个磁环, 磁环原边( 207a), 磁环上管驱动副边(207b )和磁环下管驱动副边(207c) 为同一磁环的不同绕组, 磁环原边(206a)、 磁环上管驱动副边(206b)和磁环下管驱动副边(206c )为另一磁环的不同绕组; 磁环上管驱动副边(206b)和磁环上管驱动副边(207b )与上管驱动电阻(208 ) 串联组成上管(201 ) 的驱动电路; 磁环下管驱动副边(206c)、 磁环下管驱动副边(207c ) 与下管驱动电阻(209)串联组成下管(202)的驱动电路。 On the tube (201), down tube (202), DC blocking capacitor (210) and blocking capacitor under (211) consisting of a half-bridge inverter circuit, the tube (201) and the down tube (202) connected to the midpoint of the output sequence (203) and the other end connected to the primary ring (206a), the primary ring (207a) and load matching circuit (203), load matching circuit and blocking capacitor (210) and blocking capacitor under (211) connection points are connected; the circuit is provided with two ring, ring the original edge (207a), the magnetic tube drive the secondary side (207b) and lower secondary magnetic tube drive (207c) for the different windings of the same ring, primary ring (206a), the magnetic tube drive the secondary side (206b) and lower secondary magnetic tube drive (206c) for the different windings of another ring; the ring tube drive the secondary side (206b) and magnetic tube-driven secondary side (207b) on the ring and on the tube drive resistance (208) series tube (201) on the composition of the drive circuit; tube drive under the secondary ring (206c), under magnetic tube drive the secondary side (207c) and driving under the control resistor (209) in series down tube (202) drive circuit. 当外来起振脉冲开通下管(202 )后, 半桥起振。 When the external opening of the next start-up pulse tube (202), the half-bridge start-up. 控制电路(204) 按照外来控制命令的要求输出控制信号使电控制开关(205 ) 闭合或打开; 当电控制开关(205 )打开时,负载电流流经磁环原边(206a)和磁环原边(207a), 这两个磁环各自的两组副边输出分别叠加后, 分别驱动上管(201 )和下管(202), 形成一固定的自激振荡频率; 当电控制开关(205 ) 闭合时, 磁环原边(207a)被短路, 负载电流只流经磁环原边(206a), 磁环上管驱动副边(207b )与磁环下管驱动副边(207c)输出电压都为零, 只有磁环上管驱动副边(206b)和磁环下管驱动副边(206c )分别驱动上管(201 )和下管(202), 形成另一固定的自激振荡频率。 A control circuit (204) outputs a control signal in accordance with the requirements of the external control command to control the electrical switch (205) is closed or opened; when the power control switch (205) open, the load current flows through the toroid primary (206a) and magnetic original edge (207a), after which the two respective magnetic superimpose two sets of secondary output, respectively, on the drive tube (201) and the down tube (202), forming a fixed self-oscillation frequency; when the electrically controlled switch (205 ) When closed, the primary ring (207a) is short-circuited, the load current flows through the ring only to the primary (206a), the magnetic tube drive the secondary side (207b) and tube drive under the secondary ring (207c) Output Voltage are zero, only the tube drive the secondary side (206b) and a lower magnetic tube drive the secondary side (206c), respectively on the drive tube (201) and the down tube (202) on the ring, form another fixed self-oscillation frequency. 因此, 控制电路(204)按照外来控制命令的要求使电控制开关(205) 闭合或打开, 即能改变自激振荡频率, 或改变通过负载匹配电路(203) 输出的功率。 Thus, the control circuit (204) in accordance with external control command demands the electric control switch (205) closed or open, i.e. change the self-oscillation frequency, or by varying the power load matching circuit (203) output.

附图3是本发明的另一实施例的示意图, 与附图2所示实施例的工作原理基本相同, 只说明书是控制开关改成双刀电控制开关(305) 并控制振荡磁环副边; 当控制电路(304)控制双刀电控制开关(305) 闭合时, 磁环上管驱动副边(307b)和磁环下管驱动副边(307c)分别被短路, 退出振荡, 自激振荡频率只由另一磁环决定; 当双刀电控制开关(305)开路时, 两个磁环都参与振荡, 形成另一振荡频率。 Figure 3 is a schematic diagram of another embodiment of the present invention, the working principle of the embodiment shown in the drawings substantially the same as 2, only manual control switch is changed to two-pole electrical control switch (305) and controls the oscillating magnetic secondary side ; when the control circuit (304) controls the electrical pole control switch (305) is closed, the magnetic tube drive the secondary side (307b) and lower secondary magnetic tube drive (307c) is short-circuited, respectively, quit shaking, self-oscillation frequency is determined only by another ring; when the pole electrically controlled switch (305) is open, the two are involved in ring oscillator, the oscillation frequency of the formation of another.

附图4是本发明的另一实施例的示意图, 上管(401)和下管(402) 组成逆变半桥, 输出依次连接至磁环原边(406a)、 磁环原边(407a)和负载匹配电路(403), 再连接至隔直电容上(404) 和隔直电容下(405) 的连接点处; 隔直电容上(404) 和隔直电容下(405) 串联连接, 其两端与直流输入两端连接; 电路中设置有两个磁环, 磁环原边(407a)、 磁环上管驱动副边(407b)、 磁环下管驱动副边(407c)和磁环控制绕组(407d)为同一磁环的不同绕组, 磁环原边(406a)、 磁环上管驱动副边(406b)和磁环下管驱动副边(406c) 为另一磁环的不同绕组; 磁环上管驱动副边(406b)、 磁环上管驱动副边(407b)和上管驱动电阻(408) 串联后与上管(401) 的基极和发射极连接, 组成上管(401) 的驱动电路; 磁环下管驱动副边(406c)、 磁环下管驱动副边(407c)和下管驱动电阻(409) 串联后与下管(402) 的基极和发射极连接, 组成下管(402) 的驱动电路; 控制开关(410) 与磁环控制绕组(407d) 并接。 Figure 4 is a schematic diagram of another embodiment of the present invention, the tube (401) and the down tube (402) consisting of half-bridge inverter, the output of the primary side in turn connected to the magnetic ring (406a), the primary magnetic ring (407a) and load matching circuit (403), and then connected to the DC blocking capacitor (404) and blocking the connection point under (405) of the capacitor; blocking capacitor (404) and straight across the lower capacitor (405) connected in series, its both ends of the DC input connections at both ends; the circuit is provided with two ring, ring the primary side (407a), the magnetic tube drive the secondary side (407b), tube-driven secondary lower ring (407c) and magnetic control winding (407d) for the different windings in the same ring, the ring primary side (406a), the magnetic tube drive the secondary side (406b) and tube drive under the secondary ring (406c) for another ring of different windings ; on the secondary side magnet drive tube (406b), the magnetic tube after driving the secondary side (407b) and the upper tube drive resistor (408) connected in series with the pipe (401) of the base and the emitter, the composition of the tube ( 401) of the drive circuit; tube drive secondary side under magnetic (406c), after the pipe is connected at the secondary side of the driving magnet (407c) and a lower tube driver resistor (409) connected in series with the down tube (402) of the base and emitter , composition down tube (402) of the drive circuit; control switch (410) and magnetic control winding (407d) and connected.

当外来起振脉冲开通下管(402)后, 半桥起振。 When the external opening of the next start-up pulse tube (402), the half-bridge start-up. 当控制开关(410) 打开时, 两个磁环共同参与自激振荡, 形成一固定的振荡频率; 当控制开关(410) 闭合时, 磁环上管驱动副边 When the control switch (410) is open, both to participate in self-oscillating magnetic form a fixed oscillation frequency; when the control switch (410) is closed, the magnetic drive on the secondary side of the tube

(407b) 和磁环下管驱动副边(407c) 的输出电压都被篏位到零而退出振荡, 自激振荡由另一磁环决定, 形成另一固定的振荡频率, 实现了输出频率的改变。 (407b) drives the secondary pipe (407c) of the magnet and the output voltage to zero are Clamp on exit oscillation, the self-oscillation is determined by the other magnetic ring, form another fixed oscillation frequency, the output frequency to achieve change. 若负载匹配电路(403)将外部负载匹配成非纯阻性, 则振荡频率的受控改变导致输出功率的受控改变,达到发明目的。 If the load matching circuit (403) external load matching a non-pure resistance, the oscillation frequency is controlled by changing the output power leads to a controlled change, achieve the purpose of the invention.

附图5是本发明的另一实施例的示意图, 上管(501)和下管(502)组成半桥逆变电路, 输出依次连接至磁环原边(506a)、 磁环原边(507a)和负载匹配电路(503), 再连接至隔直电容上(510)和隔直电容下(511) 的连接处; 隔直电容上(510) 和隔直电容下(511) 串联连接后两端接直流输入; 电路中设置有两个磁环, 磁环原边(507a)、 磁环上管驱动副边 Figure 5 is a schematic view of another embodiment of the present invention, the tube (501) and the down tube (502) consisting of half-bridge inverter circuit, in turn connected to the output of the primary side of the magnetic ring (506a), the primary magnetic ring (507a ) and load matching circuit (503), and then connected to the DC blocking capacitor (510) and blocking under (511) junction capacitance; the blocking capacitor (510) and lower blocking capacitor (511) connected in series after two Termination DC input; the circuit is provided with two ring, ring the original edge (507a), magnetic drive on the secondary side of the tube

(507b)和磁环下管驱动副边(507c)为同一磁环的不同绕组, 磁环原边(506a)、 磁环上管驱动副边(506b) 和磁环下管驱动副边(506c) 为另一磁环的不同绕组; 磁环上管驱动副边 Driving under the secondary pipe (507b) and magnetic (507c) for the same ring of different windings, primary ring (506a), the magnetic tube drive the secondary side (506b) and lower secondary magnetic tube drive (506c ) for different windings another ring; the ring on the tube drive the secondary side

(506b) 或磁环上管驱动副边(507b) 由联动开关上管部分(505a)选择其中之一与上管驱动电阻(508) 串联后连接至上管(501) 的基极和发射极; 磁环下管驱动副边(506c) 或磁环下管驱动副边(507c) 由联动开关下管部分(505b) 选择其中之一与下管驱动电阻(509) 串联后连接至下管(502)的基极和发射极; 设置两个磁环的耦合系数不同, 使每个磁环单独说明书接入电路时形成的振荡频率不同,其中磁环上管驱动副边( 506b )和磁环下管驱动副边( 506c) 接入电路时的振荡频率符合负载启动特性的要求。 (506b) or magnetic tube drive on the secondary side (507b) by a switch on the linkage section (505a) to select one of the top tube drive resistor (508) connected to the upper tube (501) of the base and emitter after the series; Tube drivers under the secondary ring (506c) or tube drive under the secondary ring (507c) by the interlocking switch section (505b) select one of the down tube connected after driving resistance (509) connected in series to the next tube (502 ) of the base and emitter; providing two different magnetic coupling coefficient, so that each magnetic different oscillation frequencies alone manual access to the circuit is formed, wherein the secondary magnetic drive tube (506b) and the lower magnetic tube-driven secondary side (506c) access to the circuit when the oscillation frequency of the startup characteristics consistent with the requirements of the load. 在初始上电时, 控制电路(504)总是控制联动开关使磁环上管驱动副边(506b) 和磁环下管驱动副边(506c )接入电路, 保证负载启动特性得到满足; 外来起振脉冲使逆变半桥起振, 电路按磁环上管驱动副边(506b ) 和磁环下管驱动副边(506c)接入电路形成的启动频率工作。 In the initial power-up, the control circuit (504) always control linkage so that the magnetic switch tube drive the secondary side (506b) and lower secondary magnetic tube drive (506c) access to the circuit, ensure that the load starting characteristics are met; foreign Start-up pulse to the half-bridge inverter start-up, the magnetic tube drive circuit according to the secondary side (506b) and lower secondary magnetic tube drive (506c) the frequency of access to start working circuits. 当负载启动后, 控制电路(504)可按照外部控制命令的要求使联动开关上管部分(505a) 和联动开关下管部分(505b)在两个磁环的副边之间切换, 使磁环上管驱动副边(506b )和磁环下管驱动副边(506c ) 接入电路, 或使磁环上管驱动副边(507b ) 和磁环下管驱动副边(507c) 接入电路, 从而使电路在两个不同的振荡频率之间切换, 当负载匹配电路(503)形成非纯阻性等效负载时, 输出频率的改变导致输出功率的改变, 达到发明目的。 When the load is started, the control circuit (504) in accordance with the requirements of external control commands interlocking switch on the tube section under (505a) and the linkage switch section (505b) between the two secondary magnetic switch, so ring Tube drivers on the secondary side (506b) and lower secondary magnetic tube drive (506c) access to the circuit, or the tube-driven secondary (507b) on the ring and the lower ring tube drive the secondary side (507c) access to the circuit, so that the circuit between two different oscillation frequency switching, when the load matching circuit (503) to form a non-pure resistive equivalent load changes lead to changes in the output frequency of the output power to achieve the purpose of the invention.

附图6是本发明的另一实施例的示意图, 与附图5所示实施例的工作原理基本类似, 只是两个磁环的原边也由联动开关磁环原边部分(605c ) 选择接入电路; 设置两个磁环的耦合系数不同, 使每个磁环单独接入电路时形成的振荡频率不同。 Figure 6 is a schematic diagram of another embodiment of the present invention, the working principle of the embodiment shown in the drawings of 5 is substantially similar, except that the primary side of the two magnetic interlocking switch also by primary magnet portion (605c) Select Output into the circuit; providing two different magnetic coupling coefficient, so that each magnetic different oscillation frequencies alone access circuits. 当控制电路(604)按照外部控制命令的要求控制联动开关在两个磁环之间切换时, 将使电路在两个不同的振荡频率之间切换, 达到发明目的。 When the control circuit (604) in accordance with the requirements of the external control command switch control linkage between the two magnetic switching circuit will oscillate between two different switching frequencies, to achieve the object of the invention.

附图7是本发明的另一实施例的示意图, 与附图5所示实施例的工作原理基本类似, 只是两个磁环的原边由双位开关(705 )选择接入电路, 并将两个磁环的副边改成串联; 设置两个磁环的耦合系数不同,使每个磁环单独接入电路时形成的振荡频率不同。 Figure 7 is a schematic view of another embodiment of the present invention, the working principle of the embodiment shown in the drawings of 5 is substantially similar, except that both the primary side of the magnetic ring by a double switch (705) to select the access circuit, and secondary magnetic ring into two series; providing two different magnetic coupling coefficient, so that each magnetic different oscillation frequencies alone access circuits. 当控制电路(704) 按照外部控制命令的要求控制双位开关(705 )在两个磁环之间切换时, 原边未接入的磁环的副边输出电压为零, 振荡频率由接入电路的磁环决定; 因此, 在两个磁环间切换, 即使电路在两个不同的振荡频率之间切换, 达到发明目的。 When the control circuit (704) in accordance with the requirements of the external control command to control two-position switch (705) to switch between the two magnetic ring, the magnetic ring is not connected to the primary side of the secondary output voltage is zero, the oscillation frequency by an access magnetic circuit of the decision; therefore, the switching between the two magnetic ring, even if the circuit between two different oscillation frequency handover, the purpose the invention.

附图8是本发明用于电子镇流器的一实施例的具体电路图,整流电路或PFC电路D1输出连接至半桥上管Q1和半桥下管Q2组成的逆变半桥; 起振充电电阻Rl、 起振电容C1和双向触发二极管D2组成起振线路,二极管D3在电路起振后将起振电容C1篏位在低电平; 半桥上管Q1和半桥下管Q2组成的逆变半桥输出依次连接振荡磁环T1原边Tla、 振荡磁环T2原边T2a、 谐振电感Lr、 荧光灯TL的灯丝、 谐振电容Cr, 经荧光灯TL的另一侧灯丝接到隔直电容上C2和隔直电容下C3的连接中点; 电路中设置有两个磁环, 振荡磁环T1原边Tla、 振荡磁环T1上管驱动副边Tib和振荡磁环T1下管驱动副边Tic为同一磁环的不同绕组, 振荡磁环T2原边T2a、 振荡磁环T2上管驱动副边T2b、 振荡磁环T2下管驱动副边T2c和振荡磁环T2控制绕组T2d为另一磁环的不同绕组; 振荡磁环T1上管驱动副边Tlb、 振荡磁环T2上管说明书驱动副边T2b和半桥上管驱动电阻R2串联后与半桥上管Q1的基极和发射极连接; 振荡磁环T1下管驱动副边Tlc、 振荡磁环T2下管驱动副边T2c和半桥下管驱动电阻R3串联后与半桥下管Q2的基极和发射极连接; 隔直电容上C2和隔直电容下C3串联后两端接整流电路或PFC 电路D1的输出; 辅助直流电压电源VDC、辅助电阻R4、控制开关SI串联后与振荡磁环T2控制绕组T2d的两端相连接;置辅助直流电压电源VDC的电压值为足以通过辅助电阻R4使振荡磁环T2饱和的值, 或置辅助直流电压电源VDC的电压值为零并置辅助电阻R4为适当值, 使辅助电阻R4与振荡磁环T2控制绕组T2d接通时,振荡磁环T2上管驱动副边T2b和振荡磁环T2下管驱动副边T2c的输出被篏位到零。 Figure 8 is a specific circuit diagram of the present invention, the PFC output rectifier circuit for an electronic ballast or an embodiment of the half-bridge inverter circuit D1 is connected to the half-bridge transistors Q1 and Q2 form a half bridge tube; start-up charge inverse half-bridge and half-bridge Q1, Q2 consisting of tubes; resistance Rl, start-up capacitor C1 and diac composed of start-up line D2, D3 diode in the circuit start-up after start-up capacitor C1 Clamp on at a low level variable oscillating half-bridge output sequentially connecting ring T1 primary Tla, oscillating magnetic T2 primary T2a, resonant inductor Lr, TL fluorescent filament, resonant capacitor Cr, the other side is connected to the filament by fluorescent TL on blocking capacitor C2 and connecting the midpoint of the next C3 blocking capacitor; magnetic circuit is provided with two oscillating magnetic T1 primary Tla, tube drive on the secondary side oscillating magnetic Tib T1 and T1 oscillating magnetic drive down tube for secondary Tic different windings in the same ring, the oscillating magnetic T2 primary T2a, the oscillating magnetic T2 tube drive the secondary side T2b, oscillating magnetic T2 tube drive and oscillating magnetic T2c secondary winding T2 control T2d another ring of different windings; the oscillating magnetic tube drive T1 secondary Tlb, the oscillating magnetic tube T2 specification-driven secondary T2b and a half after the canal bridge drive resistor R2 is connected in series with the base and emitter of the half bridge transistor Q1; oscillation T1 pipe driving under the secondary ring Tlc, oscillating magnetic T2 tube drive and half after the secondary side T2c bridge tube drive resistor R3 is connected in series with the half-bridge tube base and emitter of Q2; the blocking capacitor C2 and By blocking capacitor connected to a rectifier circuit or PFC circuit D1 output ends of the series after C3; auxiliary DC voltage source VDC, auxiliary resistors R4, control switches SI and oscillation control ring T2 is connected at both ends after winding T2d series; home aid a DC voltage source VDC via the auxiliary voltage is sufficient to make the oscillating magnetic resistor R4 T2 saturation value, or set to a DC voltage source VDC auxiliary voltage value of zero and an auxiliary resistor R4 is set to an appropriate value, the resistor R4 and the oscillation of the auxiliary magnetic When the ring is turned T2d control winding T2, T2 on the oscillating magnetic tube driven oscillating magnetic secondary T2b and T2 tube drive T2c secondary output is Clamp on to zero.

初始状态时, 置控制开关S 1开路。 When the initial state, set the control switch S 1 is open. 当适当电压的交流电输入至整流电路或PFC电路D1 后, 整流电路或PFC电路D1将交流输入转变为直流输出, 经起振充电电阻R1向起振电容C1 充电, 起振电容C1上电压逐渐升高直至双向触发二极管D2击穿,起振电容C1经双向触发二极管D2和半桥下管驱动电阻R3向半桥下管Q2基极放电, 半桥下管Q2导通, 电路起振; 因控制开关S1开路, 两个磁环都参与振荡, 电路以一固定频率振荡, 半桥上管Q1和半桥下管Q2组成的逆变半桥输出电流流经谐振电感Lr、谐振电容Cr和荧光灯TL的灯丝, 在谐振电容Cr两端产生高电压最终导致荧光灯TL击穿, 荧光灯TL点亮。 When the proper voltage AC input to the rectifier circuit or PFC circuit D1, D1 rectifier circuit or PFC circuit AC input into a DC output, the start-up charge resistor R1 to the start-up capacitor C1 is charged, the voltage on the capacitor C1 from vibration gradually rise D2 high until DIAC breakdown, start-up capacitor C1 through two-way trigger diode D2 and resistor R3 and a half drive to the canal bridge half bridge Q2 base discharge pipe, half pipe bridge Q2 is turned on, the circuit start-up; because control switch S1 is open, two ring are involved in oscillation circuit with a fixed frequency oscillator, half bridge, half bridge Q1 and Q2 tube composed of half-bridge inverter output current flows through the resonant inductor Lr, resonant capacitor Cr and fluorescent TL filament, the both ends of the resonant capacitor Cr to generate a high voltage resulting in a fluorescent lamp TL breakdown, TL fluorescent lights. 当需要调光时, 置控制开关S1 闭合,若辅助直流电压电源VDC的电压值被置为足够高的值, 则流经辅助电阻R4和振荡磁环T2控制绕组T2d的电流使该磁环饱和而退出振荡, 振荡频率改变为由另一磁环决定的自激振荡频率; 置控制开关S 1闭合时, 若辅助直流电压电源VDC的电压值被置零并且辅助电阻R4 被置为适当值, 使振荡磁环T2上管驱动副边T2b和振荡磁环T2下管驱动副边T2c的输出被篏位到零而退出振荡,振荡频率改变为由另一磁环决定的自激振荡频率; 因为荧光灯TL已经击穿, 逆变半桥输出电流的一部分经谐振电感Lr流到荧光灯TL, 自激振荡频率的改变导致流经谐振电感Lr和荧光灯TL的电流发生改变,使输出至荧光灯TL的功率发生改变, 达到调光效果。 When you need to dimming, position control switch S1 is closed, if auxiliary dc voltage VDC power supply voltage value is set to a high enough value, the flow through the auxiliary resistors R4 and oscillating magnetic T2d T2 control winding current so that the magnetic saturation exit oscillation, the oscillation frequency is changed by another magnetic determine self-oscillation frequency; set when the control switch S 1 is closed, when the auxiliary DC voltage source VDC voltage value is set to zero and the auxiliary resistor R4 is set to an appropriate value, T2 magnetic oscillation on the secondary side of the tube-driven oscillating magnetic T2b and T2 tube drive T2c secondary output Clamp on to exit the oscillation is zero, the oscillation frequency is changed by the self-oscillation frequency determined by another ring; because Fluorescent TL has a breakdown, part of the half-bridge inverter output current flows through the resonant inductor Lr fluorescent TL, the self-oscillation frequency changes lead to flow through the resonant inductor Lr and fluorescent TL current changes, so that the power output to the fluorescent TL changed, to achieve the dimming effect.

附图9是本发明一种启动方法的示意图。 Figure 9 is a schematic diagram of the present invention is a method to start. 当本发明所述的频率分段可变的自激振荡电源所连接的负载对启动频率有特定要求时, 本发明的电源可以按照负载对启动频率的要求, 设置多个电流互感器组成的耦合电路(102 )中某几个特定互感器参与振荡时的频率为该启动频率。 When the frequency coupling segments according to the invention of the self-oscillating power variable load connected to the start frequency has specific requirements, in accordance with the present invention can supply the load on the start frequency of the requirements set consisting of a plurality of current transformers circuit (102) in a few specific frequency oscillation transformer participate for that start frequency. 然后本发明的电源可按照附图9所述的方法逐步完成启动: 在步骤(901 )上电启动或收到启动指令时, 即进入步骤(902 )置开关于产生启动频率的位置, 使开关控制上述特定互感器参与振荡, 从而产生该启动频率。 Then the power of the present invention may be described according to figures 9 to start the gradual completion method: electric start or when receiving a start instruction in step (901), which advances to step (902) is set to produce an open position on the starting frequency of the switch involved in the control of the specific transformer oscillation, resulting in the start frequency. 然后按步骤(903 )判断是否启动完成, 若未完成, 保持开关位置不变; 若启动完成, 则进入步骤(904)按控制命令, 置开关于产生所需频率的位置。 Then in step (903) determines whether the startup is completed, if not completed, keeping unchanged switch positions; if startup is complete, then step (904) according to the control command, set the desired open position on the generated frequency. 说明书本方法可人工控制完成, 也可由本发明电源内设置的控制电路完成。 The description of this method can complete manual control, the power control circuit may also be provided to complete the present invention.

上述该些实例中, 也可以设置一控制模块和采样电路, 通过采样电路采集负载电路的电流采样, 反馈至控制模块, 控制模块控制PWM占空比, 由此达到将输出平均电流恒定在目标值附近的功效。 Some examples of the above, can also be provided with a control module and a sampling circuit, the sampling circuit samples collected by the current load circuit, a feedback to the control module, the control module controls the PWM duty cycle, thereby achieving the average output current constant at the target value Efficacy nearby. 这仅仅是一种实现方案, 但并非用来局限本发明, 仅是举例说明之用。 This is just one implementation, but not intended to limit the invention, are merely illustrative purposes. 应用例一 Application Example One

上述的该些实例的电源可直接应用于气体放电灯电子镇流器。 Some examples of the power of the above can be applied directly to the gas discharge lamp electronic ballast. 电子镇流器(Electricalbal last ), 是指采用电子技术驱动电光源, 使之产生所需照明的电子设备。 Electronic ballasts (Electricalbal last), refers to the use of electronic technology-driven electric light, to produce the desired lighting electronics. 与之对应的是电感式镇流器(或镇流器)。 Corresponding is inductive ballast (or ballasts). 现代日光灯越来越多的使用电子镇流器, 轻便小巧, 甚至可以将电子镇流器与灯管等集成在一起, 同时, 电子镇流器通常可以兼具起辉器功能, 故此又可省去单独的起辉器。 Modern fluorescent increasing use of electronic ballasts, compact and lightweight and can even be integrated electronic ballast and lamp together, at the same time, the electronic ballast usually both starter function, but also the province therefore to separate starter. 电子镇流器还可以具有更多功能, 比如可通过电源逆变过程使得日光灯可以使用直流电源。 Electronic ballasts may also have more features, such as fluorescent lights can make the process can be used by power inverter DC power supply. 将上述实例的电源应用于电子镇流器中, 还能达到调光功效。 The above examples of the power used in electronic ballasts, but also to achieve the dimming effect.

这种应用仅是举例说明之用, 并非用来局限本发明,本发明的电源应用的领域极其广泛, 这仅是一种应用实现。 This application is merely illustrative only and are not intended to limit the invention, the field of application of the present invention, the power supply is extremely wide, this is merely an application implementation.

应用例二 Application Example Two

上述的该些实例的电源可直接应用于输出电流可变的电源中, 比如LED驱动电源中, 当然也可以是其它照明装置的驱动电源中, Some examples of the above-mentioned power supply can be directly applied to the output current of the variable power supply, such as the LED driving power supply, of course, also be a driving power source other lighting device,

一种输出电流可变的电源, 该电源设置有逆变开关电路、 控制模块、 开关、 多个电流互感器、 谐振电感、 谐振电容、 输出整流电路、 以及直流负载, 谐振电感和谐振电容组成串联谐振电路, 谐振电容并接输出整流电路, 输出整流电路的输出并接直流负载, 控制模块按照外部命令使开关闭合或打开, 使至少一个电流互感器参与或退出自激振荡, 来改变自激振荡频率, 改变输出至直流负载的电流大小。 An output current of the variable power supply, the power supply switch is provided with an inverter circuit, a control module, a switch, a plurality of current transformers, resonant inductor, resonant capacitor, the output of the rectifier circuit, and the DC load, consisting of the resonant inductor and resonant capacitor in series resonant circuit, and the resonant capacitor connected to the output rectifier circuit, the output and the output of the rectifier circuit connected DC load control module according to an external command to make the switch is closed or open, so that at least one current transformer participate or withdraw from the self-oscillation, to change the self-oscillation frequency, change the output to the current size of the DC load.

直流负载包括至少一发光二极管。 DC load includes at least one light emitting diode.

输出整流电路包含至少一个发光二极管。 Output rectifying circuits includes at least one light emitting diode.

所述的多个电流互感器, 是在磁芯上绕制有线圈, 互感器的原边绕组相互串联后与谐振电感串联连接, 每个互感器有二个副边绕组, 分别串联后驱动逆变开关电路的上、 下功率开关管, 其中一个电流互感器或绕有副边控制绕组, 开关并接任一电流互感器的一个绕组, 控制模块使开关打开或闭合, 使该电流互感器参与或退出自激振荡, 以控制电路的振荡频率。 Said plurality of current transformers are wound on the core has primary winding coils, transformers and resonant inductor in series after series connection, each transformer has two secondary windings, respectively, after the reverse tandem drive variants of the switching circuit, when the power switch, which has a current transformer secondary winding or control winding, switch and took a winding of a current transformer, the control module so that the switch is open or closed, so that the current transformer participate or Exit self-oscillation to control the oscillation frequency of the circuit.

还有, 控制模块输出P醫信号使开关按PWM信号闭合或断开, 使受开关控制的电流互感器按PWM信号退出或参与自激振荡,使自激振荡频率按PWM信号的脉宽比在两个频率间切换, 说明书通过改变P丽脉宽比来改变工作于两个自激振荡频率的时间比例, 来改变输出至直流负载的电流的平均值大小。 Also, the control module output signal switching P Medical PWM signal by closing or opening, so that by the switch controlled by the PWM signal to exit the current transformer or participate in the self-oscillation, so that the self-oscillation frequency by pulse-width ratio of the PWM signal switching between the two frequencies, to change the time scale operates in two self-oscillation frequency to change the output to a DC load current by changing the average size of the manual pulse width ratio P Li.

该电源还包括将输出电流平均值的采样信号反馈到控制模块的采样模块, 控制模块据采样值和目标值的差异改变其输出P丽信号的脉宽比, 使输出至直流负载的电流的平均值恒定在目标值附近。 The power supply further comprises a current average value of the sampled output signal is fed back to the control module sampling module, the control module according to the sampling difference value and the target changes the output signal of the pulse width ratio P Li, the average output current to a DC load constant value in the vicinity of the target.

该电源还包含整流电路, 外部交流火线和零线经整流后连接至逆变开关电路, 控制模块的信号地连接到整流输出的负端, 将与外部交流火线或零线构成回路并有电压差的任何电压源经过一命令开关以一根导线连接到控制模块的信号输入端, 控制模块输出连接开关, 命令开关闭合时, 控制模块接收到该电压源的电压信号并将该信号看作控制命令, 使所述开关闭合或打开, 使电路工作于一自激振荡频率或一种按P丽占空比形成的频率组合, 或使电路按一输出电流目标值工作, 当命令开关断开时, 控制模块将该电压信号的消失看作另一命令, 使所述开关打开或闭合, 使电路工作于另一自激振荡频率或按另一种P丽占空比形成的频率组合, 或使电路按另一输出电流目标值工作。 The power supply further includes a rectifier circuit, external communication line and neutral by the rectifier is connected to the inverter switching circuit, the control module signally connected to the negative terminal of the rectifier output, constituting the circuit and the external communication line and a FireWire or zero voltage difference any voltage source via a command switch to a wire connected to the control module of the signal input terminal, an output connected to the switch control module, the command switch is closed, the control module receives the voltage of the voltage source and the signal is treated as signal control command , so that the switch is closed or open, the circuit operates in a self-oscillation frequency of a frequency or a combination formed by P Li duty cycle, or the output current of the circuit according to a target work, when the command switch is turned off, The control module voltage signal disappears seen another command to make the switch to open or closed, the circuit operates in another self-oscillation frequency by frequency or in combination with another form P Lai duty cycle, or the circuit Another work by the output current target.

附图10是本发明的另一实施例的具体电路图,该实施例利用本发明实现了对LED的可调光驱动。 Figure 10 is a concrete circuit diagram of another embodiment of the present invention, this embodiment utilizing the present invention realizes an adjustable drive of the LED light. 整流电路D1001输出连接至半桥上管Q1001和半桥下管Q1002组成的逆变半桥; 起振充电电阻R1001、 起振电容C1001和双向触发二极管D1002、 二极管D1003组成起振线路; 半桥上管Q1001和半桥下管Q1002组成的逆变半桥输出依次连接振荡磁环T1001原边T1001a、 振荡磁环T1002原边T1002a 、 谐振电感Lrl001、 谐振电容C1004; 谐振电容C1004另一端接半桥电容上C1002和半桥电容下C1003的连接中点; 谐振电容C1004两端并接至输出整流电路D1004, 输出整流电路D1004的输出并接半导体发光器件组LEDs ; 输出整流电路D1004 中还可以包含至少一个发光二极管;上述电路结构输出至半导体发光器件组LEDs的电流值受LED导通压降的影响较小, 是一种较好的LED驱动电路。 D1001 is connected to the output of the rectifier circuit and a half bridge inverter half-bridge and half-bridge tube tube Q1001 Q1002 composition; start-up charging resistor R1001, start-up capacitor C1001 and diac D1002, D1003 diode consisting of start-up line; half bridge tube Q1001 and Q1002 half pipe bridge inverter consisting of oscillating half-bridge output sequentially connecting ring T1001 primary T1001a, oscillating magnetic T1002 primary T1002a, resonant inductor Lrl001, resonant capacitor C1004; C1004 other end of the half-bridge resonant capacitor capacitance connecting the lower half-bridge capacitors C1003 and C1002 midpoint; resonant capacitor C1004 ends and connected to the output rectifier circuit D1004, D1004 outputs the output of the rectifier circuit and connected to the semiconductor light-emitting device group LEDs; output rectifying circuits D1004 may further comprise at least one light-emitting diodes; the circuit structure of the output to the current value of the semiconductor light emitting device less affected group LEDs LED voltage drop is a better LED drive circuit. 电路中设置有两个磁环, 振荡磁环T1001原边T1001a、 振荡磁环T1001上管驱动副边TlOOlb和振荡磁环T1001下管驱动副边TlOOlc为同一磁环的不同绕组,振荡磁环T1002原边T1002a、振荡磁环T1002上管驱动副边T1002b、振荡磁环T1002下管驱动副边T1002c为另一磁环的不同绕组; 振荡磁环T1001上管驱动副边T1001b、 振荡磁环T1002上管驱动副边T1002b和半桥上管驱动电阻R1002串联后与半桥上管Q1001 的基极和发射极连接; 振荡磁环T1001下管驱动副边T1001c、 振荡磁环T1002下管驱动副边T1002c和半桥下管驱动电阻R1003串联后与半桥下管Q1002的基极和发射极连接; 半桥电容上C1002和半桥电容下C1003串联后两端接整流电路D1001的输出; 辅助直流电压源DC1001给控制模块ASIC供电,控制模块ASIC输出连接电控开关S1002的控制说明书端, 电控开关S1002的开关两端连接振荡磁环T1002下管驱动副边T1002c; 电路起振后, 控制模块ASIC控制电控开关S1002闭合或打开, 即使振荡磁环T1002退出或加入自激振荡, 导致电路输出两个不同的频率; 因为谐振电感Lrl001、 谐振电容C1004、 输出整流电路D1004、 半导体发光器件组LEDs—起形成感性负载,逆变电路的不同输出频率导致负载电流变化,最终导致流经半导体发光器件组LEDs的电流大小发生变化, 达到发明目的。 Magnetic circuit is provided with two oscillating magnetic T1001 primary T1001a, the oscillating magnetic T1001 tube drive and the secondary oscillation under TlOOlb ring T1001 tube drive TlOOlc different secondary winding of the same ring, oscillating magnetic T1002 primary T1002a, the oscillating magnetic T1002 tube drive secondary T1002b, oscillating magnetic T1002 tube drive T1002c different secondary winding of another ring; the oscillating magnetic T1001 tube drive secondary T1001b, shaking the ring T1002 tube-driven secondary T1002b and half bridge driver after the tube is connected in series with a resistor R1002 half-bridge canal Q1001's base and emitter; oscillating magnetic T1001 tube drive secondary T1001c, oscillating magnetic T1002 tube drive secondary T1002c and half-bridge drive resistor R1003 after pipe is connected in series with a half-bridge canal Q1002 the base and emitter; the half-bridge and half-bridge capacitor C1002 C1003 series across the capacitor connected to the output of the rectifier circuit D1001; auxiliary DC voltage source DC1001 ASIC power to the control module, the control module ASIC output terminal is electrically connected to the control manual control switch S1002 and S1002 switches at both ends of the electronic control switch connected oscillating magnetic T1002 tube drive under secondary T1002c; after start-up circuit, the control module ASIC control electronically controlled switch S1002 is closed or open, even if the oscillating magnetic T1002 leave or join the self-oscillation, causing the circuit to output two different frequencies; because the resonant inductor Lrl001, resonant capacitor C1004, the output of the rectifier circuit D1004, a semiconductor light emitting device group from LEDs- the formation of an inductive load, the output frequency of the inverter circuit, resulting in different load current changes, eventually leading to flow through the semiconductor light-emitting device group LEDs current size changes, the purpose of the invention.

当控制模块ASIC输出PWM脉宽调制信号时,电控开关S1002按PWM信号的占空比闭合或断开, 从而使自激振荡电路按P丽占空比在两个工作频率之间切换, 从而导致输出的负载电流为两种幅值的电流按PWM占空比切换; 改变P丽信号占空比的大小, 即改变负载电流中两种幅值的占比, 从而改变输出平均电流的大小, 从而用分段调频的方式实现输出平均电流的连续改变; 若在半导体发光器件组LEDs电流路径中接入电流采样电路,将采样信号反馈到控制模块ASIC, 并按照反馈信号与目标值的比较结果来改变PWM占空比, 即能控制输出至半导体发光器件组LEDs的平均电流恒定在目标值附近。 When the control module ASIC output PWM pulse width modulation signal, electronically controlled switch S1002 according to the duty cycle of the PWM signal is closed or disconnected, so that the self-oscillating circuit according to P Lai duty cycle switching between the two operating frequencies, thus causing the output load current into two current amplitude by duty cycle PWM switch; Lai signal P changes the duty ratio, i.e., change in the proportion of two load current amplitude, thereby changing the output magnitude of the average current, in order to achieve continuous output of the average current with changing segment FM manner; if access to current sampling circuit in a semiconductor light-emitting device group LEDs current path, the sampling signal is fed back to the control module ASIC, and compare the results with a target value in accordance with the feedback signal to change the PWM duty cycle, that is able to control the output current of the semiconductor light-emitting device to an average group of LEDs near constant target.

该实施例中控制模块ASIC的信号地与整流电路D1001输出的负端连接, 控制模块ASIC 的信号输入端与信号地间并接稳压管Z1001 , 该稳压管Z1001起到信号电压的整流和篏位两个作用,控制模块ASIC的信号输入端经电阻R1004后连接至命令开关S1001 ,命令开关S1001 的另一端连接命令电源VCMD, 或与整流电路D1001输入的火线连接, 或与零线连接, 命令电源VCMD为任何与火线或零线构成回路并有压差的电压源。 This embodiment of the output signal of the control module ASIC with the negative terminal of the rectifier circuit D1001 connected between the control signal input terminal of the module ASIC and the signal ground and connected to the regulator Z1001, Z1001 play signal the voltage regulator and rectifier Clamp on two roles, a control signal input module ASIC via a resistor R1004 is connected to the command after the switch S1001, S1001's command and the other end connected to the command switch power VCMD, or connect with Firewire input rectifier circuit D1001, or connect with the zero line, Command Power VCMD any dropout voltage source and a FireWire or zero line and form a loop. 当命令开关S1001闭合时,控制模块ASIC接收到输入的电压信号, 将该电压信号作为控制命令, 控制模块ASIC按事先定义控制电控开关S1002闭合或断开, 或输出某一占空比的PWM信号, 使电路输出频率为某一自激振荡频率或为两种自激振荡频率的某一占空比的组合; 当命令开关S1001断开时, 输入电压信号消除, 控制模块ASIC信号接收端不再接收到电压信号, 控制模块ASIC将该电压信号的消失视作另一命令, 控制模块ASIC改变其输出从而改变电控开关S1002的开关状态, 或输出另一占空比的P丽信号, 使电路输出频率为另一自激振荡频率或为两种自激振荡频率的另一占空比的组合, 达到发明目的。 When the command switch S1001 is closed, the control module ASIC receives the input voltage signal, the voltage signal as a control command, the control module according to the predefined control ASIC electronically controlled switch S1002 is closed or disconnected, or a duty cycle of the PWM output signal, the output frequency of the circuit for a self-oscillation frequency or a combination of the two self-oscillation frequency of a particular duty; S1001 switches off when the command, the input voltage signal to eliminate, control module ASIC signal receiver does not stop receiving the voltage signal, the voltage control disappears module ASIC considered another command signal, the control module to change its output ASIC electronically controlled switch S1002 to change the state of the switch, or other duty cycle output signal P Li, so that circuit output frequency is another self-oscillation frequency or a combination of two other duty self-oscillation frequency, to achieve the purpose of the invention. 应当理解的是, 这里所描述的方法可以以各种形式的硬件、 软件、 固件、 专用处理机或者它们的组合实现。 It should be understood that the methods described herein may be in various forms of hardware, software, firmware, special purpose processors, or a combination thereof. 系统模块(或者方法步骤的逻辑流程)之间的连接可能不同, 根据这里给出的指导, 相关领域的普通技术人员将能够设计出本发明的这些以及类似的实施方式, 都应落入本发明的范围内。 Connection system modules (or the logic flow of method steps) may differ between, according to the guidance given herein, one of ordinary skill in the relevant art will be able to devise these and similar embodiments of the present invention, the present invention should fall within within the range. 以上公开了本发明的多个方面和实施方式, 本领域的技术人员会明白本发明的其它方面和实施方式。 A plurality of the above disclosed aspects and embodiments of the present invention, those skilled in the art will appreciate additional aspects and embodiments of the present invention. 本发明中公开的多个方面和实施方式只是用于举例说明, 说明书并非是对本发明的限定, 本发明的真正保护范围和精神应当以权利要求书为准。 A plurality of aspects and embodiments of the present invention are disclosed for illustrative purposes only, the specification does not limit the present invention, the true scope and spirit of the present invention the claims should prevail.

Patent Atıfları
Alıntı Yapılan Patent Dosya kabul tarihi Yayın tarihi Başvuru sahibi Başlık
CN1193842A *19 Mar 199823 Eyl 1998国际整流器有限公司Current sensing circuit for pulse width modulated motor drive
CN102064749A *11 Oca 201118 May 2011广州智光电气股份有限公司Motor soft startup device capable of giving consideration to reactive power compensation and control method thereof
CN102104272A *17 Ara 200922 Haz 2011深圳先进技术研究院Power supply switching device
CN102316658A *18 Tem 201111 Oca 2012晴飞照明电器(上海)有限公司Self-excited oscillation inversion power supply with variable output frequency segment
CN202160325U *18 Tem 20117 Mar 2012晴飞照明电器(上海)有限公司输出频率分段可变的自激振荡逆变电源
US4651267 *14 Haz 198517 Mar 1987Sundstrand CorporationProportional base drive circuit for transistorized bridge inverter
Sınıflandırma
Uluslararası SınıflandırmaH05B41/36
Ortak SınıflandırmaY02B20/185, H05B41/2827
Yasal Etkinlikler
TarihKodEtkinlikAçıklama
13 Ağu 2014122
Ref document number: 12815034
Kind code of ref document: A1
Country of ref document: EP
13 Mar 2013121
Ref document number: 12815034
Country of ref document: EP
Kind code of ref document: A1