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1. 发明授权

US09276483B2 Control circuit for active-clamp flyback power converter with programmable switching period 有权
标题翻译：具有可编程开关周期的有源钳位反激式功率转换器的控制电路
公开(公告)号：US09276483B2
公开(公告)日：2016-03-01
申请号：US14315594
申请日：2014-06-26
申请人： SYSTEM GENERAL CORPORATION
发明人： Ta-Yung Yang , Yen-Ming Liu
IPC分类号： H02J3/12 , G05F1/00 , H02M3/335 , H02M1/34
CPC分类号： H02M3/33569 , H02M3/33523 , H02M2001/0006 , H02M2001/342 , Y02B70/1491
摘要： A method for controlling an active-clamp flyback power converter is provided. The method includes comprises: generating a switching signal in response to a feedback signal for switching a low-side transistor and regulating an output of the active-clamp flyback power converter; generating an active-clamp signal after the switching signal is disabled; generating a hysteresis bias to adjust the feedback signal; and generating a pulse signal periodically to enable the switching signal. The low-side transistor is coupled to switch a transformer. The switching signal is coupled to drive the low-side transistor. The active-clamp signal is coupled to drive a high-side transistor. A pulse width of the active-clamp signal is determined by a first resistor. The high-side transistor is connected in series with a capacitor to develop an active-clamp circuit. A minimum frequency of the switching signal is determined by a second resistor during a heavy load condition.
摘要翻译：提供了一种用于控制有源钳位反激功率转换器的方法。该方法包括：响应于用于切换低侧晶体管的反馈信号和调节有源钳位反激式功率转换器的输出而产生开关信号; 在切换信号禁用后产生有源钳位信号; 产生滞后偏差来调节反馈信号; 并周期性地产生脉冲信号以使能切换信号。低侧晶体管被耦合以切换变压器。开关信号被耦合以驱动低侧晶体管。有源钳位信号被耦合以驱动高侧晶体管。有源钳位信号的脉冲宽度由第一电阻确定。高侧晶体管与电容器串联连接以形成有源钳位电路。开关信号的最小频率由重载条件下的第二电阻确定。

2. 发明授权

US09141118B2 Switching current synthesis circuit for power converter 有权
标题翻译：电源转换开关电流合成电路
公开(公告)号：US09141118B2
公开(公告)日：2015-09-22
申请号：US13693707
申请日：2012-12-04
申请人： SYSTEM GENERAL CORPORATION
发明人： Ta-Yung Yang , Ying-Chi Chen , Chien-Tsun Hsu , Cheng-Sung Chen
IPC分类号： H02M3/335 , G05F1/44 , H02M3/156 , H02M1/42
CPC分类号： G05F1/44 , H02M1/4225 , H02M3/156 , Y02B70/126 , Y02P80/112
摘要： A control circuit of a power converter is provided. The control circuit comprises a PWM circuit, a sample circuit, and emulation circuit. The PWM circuit generates a switching signal for switching an inductor and generating a switching current of the inductor in response to a current feedback signal. The sample circuit is coupled to sample a switching current signal into a capacitor during an on time of the switching signal. The emulation circuit generates a discharge current couple to discharge the capacitor during an off time of the switching signal for generating the current feedback signal. The switching current signal is correlated to the switching current of the inductor, and the discharge current is generated in response to an input voltage of the inductor, an output voltage of the power converter, and the on time of the switching signal.
摘要翻译：提供电力转换器的控制电路。控制电路包括PWM电路，采样电路和仿真电路。 PWM电路产生用于切换电感器并响应于电流反馈信号产生电感器的开关电流的开关信号。在开关信号的导通时间，采样电路被耦合以将开关电流信号采样到电容器中。仿真电路产生放电电流耦合，以在切换信号的关闭时间期间对电容器进行放电，以产生电流反馈信号。开关电流信号与电感器的开关电流相关，并且响应于电感器的输入电压，功率转换器的输出电压和开关信号的导通时间而产生放电电流。

3. 发明授权

US09343982B2 Primary-side controlled programmable power converter 有权
标题翻译：初级侧可编程电源转换器
公开(公告)号：US09343982B2
公开(公告)日：2016-05-17
申请号：US14046085
申请日：2013-10-04
申请人： SYSTEM GENERAL CORPORATION
发明人： Ta-Yung Yang
IPC分类号： H02M3/335
CPC分类号： H02M3/33523
摘要： A circuit for controlling a programmable power converter is provided. The circuit comprises a control circuit, a switching controller, and a first opto-coupler. The control circuit generates a programmable voltage-reference signal for regulating an output voltage of the programmable power converter. A feedback circuit of the control circuit detects the output voltage for generating a feedback signal in response to the programmable voltage-reference signal and the output voltage. The switching controller detects a switching current of a transformer for generating a switching signal coupled to switch the transformer for generating the output voltage and an output current in response to the feedback signal and the switching current of the transformer. The first opto-coupler transfers the feedback signal from the control circuit to the switching controller. The control circuit is at the secondary side of the transformer and the switching controller is at the primary side of the transformer.
摘要翻译：提供了一种用于控制可编程功率转换器的电路。电路包括控制电路，开关控制器和第一光耦合器。控制电路产生用于调节可编程功率转换器的输出电压的可编程电压参考信号。控制电路的反馈电路响应于可编程电压参考信号和输出电压来检测用于产生反馈信号的输出电压。开关控制器检测变压器的开关电流，用于产生耦合到开关变压器的开关信号，用于响应于反馈信号和变压器的开关电流产生输出电压和输出电流。第一光耦合器将反馈信号从控制电路传送到开关控制器。控制电路位于变压器的次级侧，开关控制器处于变压器的初级侧。

4. 发明授权

US09647561B2 Programmable current limit circuit for a programmable power supply 有权
公开(公告)号：US09647561B2
公开(公告)日：2017-05-09
申请号：US14510445
申请日：2014-10-09
申请人： SYSTEM GENERAL CORPORATION
发明人： Ta-Yung Yang , Chen-Hua Chiu , Chien-Yuan Lin , Jung-Sheng Chen , Yuan-Pu Lee
IPC分类号： H02M1/32 , H02M3/335 , H02M1/36 , H02M1/00
CPC分类号： H02M3/33507 , H02M1/32 , H02M1/36 , H02M2001/0025
摘要： A control circuit of a power supply is provided. The control circuit includes a circuit and a PWM circuit. The circuit generates a limit signal in response to an output voltage of the power supply for limiting a switching current of a transformer of the power supply. The PWM circuit generates a switching signal in response to a feedback signal and the limit signal for switching the transformer and regulating the output voltage of the power supply. A level of the feedback signal is related to a level of the output voltage of the power supply. The output voltage of the power supply is programmable.

5. 发明授权

US09502982B2 Method and apparatus of frequency modulation for power saving of adaptive power converter 有权
标题翻译：自适应功率转换器节能调频方法及装置
公开(公告)号：US09502982B2
公开(公告)日：2016-11-22
申请号：US14340809
申请日：2014-07-25
申请人： SYSTEM GENERAL CORPORATION
发明人： Ta-Yung Yang , Jung-Sheng Chen , Li Lin
IPC分类号： H02M3/335
CPC分类号： H02M3/33507
摘要： The present invention proposes a method for controlling an adaptive power converter. The method comprises: generating an output-sense signal by sampling a reflected voltage of a transformer; receiving a feedback signal related to an output power of the adaptive power converter; generating a clock signal in response to the feedback signal and the output-sense signal; generating a switching signal for switching the transformer and regulating an output voltage of the adaptive power converter. The reflected voltage is correlated to the output voltage of the adaptive power converter. The switching signal is generated in response to the feedback signal. The frequency of the switching signal is determined by the clock signal. The frequency of the switching signal is decreased in response to a decrement of the feedback signal.
摘要翻译：本发明提出了一种用于控制自适应功率转换器的方法。该方法包括：通过对变压器的反射电压进行采样来产生输出检测信号; 接收与所述自适应功率转换器的输出功率有关的反馈信号; 响应于反馈信号和输出检测信号产生时钟信号; 产生用于切换变压器并调节自适应功率转换器的输出电压的开关信号。反射电压与自适应功率转换器的输出电压相关。响应于反馈信号产生开关信号。开关信号的频率由时钟信号决定。响应于反馈信号的减小，开关信号的频率减小。

6. 发明授权

US09343917B2 Control circuit for charging battery through programmable power supplier 有权
标题翻译：通过可编程电源为电池充电的控制电路
公开(公告)号：US09343917B2
公开(公告)日：2016-05-17
申请号：US14191952
申请日：2014-02-27
申请人： SYSTEM GENERAL CORPORATION
发明人： Ta-Yung Yang
IPC分类号： H02J7/00
CPC分类号： H02J7/0052 , H02J7/0036 , H02J7/0077 , H02J2007/0059 , Y02B40/90
摘要： A charging circuit for charging a battery is provided. A power supplier has a communication interface coupled to a cable for receiving command-data and generates a DC voltage and a DC current in accordance with the command-data. A controller is coupled to the battery for detecting a battery-voltage and generates the command-data in accordance with the battery-voltage. A switch is coupled to the cable for receiving the DC voltage and the DC current through a connector. The DC voltage and the DC current generated by the power supply are coupled to the cable, and the DC voltage and the DC current are programmable in accordance with the command-data. The command-data generated by the controller is coupled the cable through a communication circuit of the controller. The controller is coupled the connector for detecting a connector-voltage and control an on/off state of the switch in response to the connector-voltage.
摘要翻译：提供一种用于对电池充电的充电电路。电源具有耦合到用于接收命令数据的电缆的通信接口，并且根据命令数据产生DC电压和DC电流。控制器耦合到电池，用于检测电池电压，并根据电池电压产生命令数据。开关耦合到电缆，用于通过连接器接收直流电压和直流电流。由电源产生的直流电压和直流电流耦合到电缆，直流电压和直流电流可根据命令数据进行编程。由控制器生成的命令数据通过控制器的通信电路耦合到电缆。控制器耦合连接器以检测连接器电压，并响应于连接器电压来控制开关的接通/断开状态。

7. 发明授权

US09300199B2 Under-voltage protection circuit for programmable power supplies 有权
标题翻译：欠压保护电路，用于可编程电源
公开(公告)号：US09300199B2
公开(公告)日：2016-03-29
申请号：US14466110
申请日：2014-08-22
申请人： SYSTEM GENERAL CORPORATION
发明人： Ta-Yung Yang , Jian-Ming Fu , Ju-Hyun Kim , Chi-Yin Lo
IPC分类号： H02M1/34 , H02M1/32 , H02M3/335 , H02M1/00 , H02J7/00
CPC分类号： H02M1/32 , H02J7/0031 , H02J2007/0037 , H02J2007/0059 , H02M3/33523 , H02M2001/0009 , H02M2001/0025
摘要： A control circuit of a power supply is provided. The power supply includes a current-sense circuit, a voltage-sense circuit, an output voltage regulation circuit, and a current regulation circuit. The current-sense circuit generates a current-sense signal in response to an output current of the power supply. The voltage-sense circuit generates a voltage-sense signal in response to an output voltage of the power supply. The output voltage regulation circuit is coupled to regulate the output voltage of the power supply according to a voltage reference signal and the voltage-sense signal. The output current regulation circuit is coupled to regulate the output current of the power supply according to a current reference signal and the current-sense signal. The output voltage of said power supply is programmable.
摘要翻译：提供电源的控制电路。电源包括电流检测电路，电压检测电路，输出电压调节电路和电流调节电路。电流检测电路响应于电源的输出电流产生电流检测信号。电压检测电路响应于电源的输出电压产生电压检测信号。输出电压调节电路被耦合以根据电压参考信号和电压检测信号调节电源的输出电压。输出电流调节电路被耦合以根据电流参考信号和电流检测信号来调节电源的输出电流。所述电源的输出电压是可编程的。

8. 发明授权

US08884684B2 Charge pump circuits having frequency synchronization with switching frequency of power converters 有权
标题翻译：具有与功率转换器的开关频率的频率同步的电荷泵电路
公开(公告)号：US08884684B2
公开(公告)日：2014-11-11
申请号：US14025969
申请日：2013-09-13
申请人： System General Corporation
发明人： Ta-Yung Yang , Chou-Sheng Wang , Tse-Jen Tseng
IPC分类号： G05F3/02 , H03L7/08
CPC分类号： H03L7/08 , H02M1/44 , H02M3/07 , H02M3/33592 , H02M2001/0006 , H02M2001/0032 , Y02B70/1475 , Y02B70/16
摘要： A control circuit of a power converter is provided. The control circuit includes a switching circuit and a charge pump circuit. The switching circuit generates a switching signal for controlling the power converter. The charge pump circuit includes an oscillator for generating an oscillation signal synchronized with the switching signal. The oscillation signal is coupled to control a switch of the charge pump circuit for generating a voltage source.
摘要翻译：提供电力转换器的控制电路。控制电路包括开关电路和电荷泵电路。开关电路产生用于控制功率转换器的开关信号。电荷泵电路包括用于产生与开关信号同步的振荡信号的振荡器。振荡信号被耦合以控制用于产生电压源的电荷泵电路的开关。

9. 发明授权

US09407142B2 Method and apparatus for controlling programmable power converter 有权
标题翻译：用于控制可编程功率转换器的方法和装置
公开(公告)号：US09407142B2
公开(公告)日：2016-08-02
申请号：US14046059
申请日：2013-10-04
申请人： SYSTEM GENERAL CORPORATION
发明人： Ta-Yung Yang
IPC分类号： H02M3/158 , H02M3/157 , G05F1/46 , H02M3/156 , H02M1/00
CPC分类号： H02M3/157 , G05F1/46 , H02M3/156 , H02M3/158 , H02M2001/0025
摘要： The present invention provides a circuit for controlling a programmable power converter. The circuit includes a micro-controller, a controller, and a timer. The controller includes a voltage error amplifier. The micro-controller has a program memory and a data memory. The controller generates switching signals in response to a voltage-feedback signal for regulating an output voltage of the programmable power converter. The voltage error amplifier generates the voltage-feedback signal according to a voltage reference signal and the output voltage of the programmable power converter. A gain of the voltage error amplifier and a value of the reference signal are programmed by the micro-controller.
摘要翻译：本发明提供一种用于控制可编程功率转换器的电路。电路包括微控制器，控制器和定时器。控制器包括电压误差放大器。微控制器具有程序存储器和数据存储器。控制器响应于用于调节可编程功率转换器的输出电压的电压反馈信号产生开关信号。电压误差放大器根据电压参考信号和可编程功率转换器的输出电压产生电压反馈信号。电压误差放大器的增益和参考信号的值由微控制器编程。

10. 发明授权

US09391528B2 Active clamp circuits for flyback power converters 有权
标题翻译：用于反激式电源转换器的有源钳位电路
公开(公告)号：US09391528B2
公开(公告)日：2016-07-12
申请号：US14076404
申请日：2013-11-11
申请人： SYSTEM GENERAL CORPORATION
发明人： Ta-Yung Yang
IPC分类号： H02M1/32 , H02M3/335
CPC分类号： H02M3/33569
摘要： An active clamp circuit for a flyback power converter is provided. The active clamp circuit includes a power transistor, a capacitor, a high-side transistor driver, a charge-pump circuit, and a controller. The power transistor is coupled in series with a capacitor to develop an active-clamper. The active-damper is coupled in parallel with a primary winding of a transformer of the flyback power converter. The high-side transistor driver is coupled to drive the power transistor. The charge-pump circuit is coupled to a voltage source and the high-side transistor driver to provide a power supply to the high-side transistor driver. The controller generates a control signal coupled to control the high-side transistor driver. The control signal is generated in response to a demagnetizing time of the transformer.
摘要翻译：提供了一种用于反激式功率转换器的有源钳位电路。有源钳位电路包括功率晶体管，电容器，高侧晶体管驱动器，电荷泵电路和控制器。功率晶体管与电容器串联耦合以形成主动钳位器。主动阻尼器与反激式功率转换器的变压器的初级绕组并联耦合。高侧晶体管驱动器被耦合以驱动功率晶体管。电荷泵电路耦合到电压源和高侧晶体管驱动器，以向高侧晶体管驱动器提供电源。控制器产生耦合以控制高侧晶体管驱动器的控制信号。响应于变压器的去磁时间产生控制信号。

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