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11. 发明授权

US08711583B2 Single-stage PFC converter with constant voltage and constant current 有权
标题翻译：具有恒定电压和恒定电流的单级PFC转换器
公开(公告)号：US08711583B2
公开(公告)日：2014-04-29
申请号：US13182291
申请日：2011-07-13
申请人： Ta-Yung Yang , Jhih-Da Hsu , Ying-Chieh Su , Li Lin
发明人： Ta-Yung Yang , Jhih-Da Hsu , Ying-Chieh Su , Li Lin
IPC分类号： H02M3/335
CPC分类号： H02M1/4258 , H02M2001/0006 , Y02B70/126
摘要： An exemplary embodiment of a power converter is provided. The power converter includes a transformer, a power device, a switching controller, and a capacitor. The power device is coupled to the transformer for switching the transformer to product output of the power converter. The switching controller receives a feedback signal for generating a switching signal coupled to drive the power device. An input circuit of the switching controller is coupled to the transformer to sample an input signal for generating the feedback signal, and the input signal is correlated to the output of the power converter. The capacitor is coupled to the switching controller to provide frequency compensation for a feedback loop of the power converter. Input of the power converter is without an electrolytic capacitor, and a maximum output current of the power converter is a constant current.
摘要翻译：提供了功率转换器的示例性实施例。功率转换器包括变压器，功率器件，开关控制器和电容器。功率器件耦合到变压器，用于将变压器切换到功率转换器的产品输出。开关控制器接收用于产生耦合以驱动功率器件的开关信号的反馈信号。开关控制器的输入电路耦合到变压器以对输入信号进行采样以产生反馈信号，并且输入信号与功率转换器的输出相关。电容器耦合到开关控制器以为功率转换器的反馈回路提供频率补偿。功率转换器的输入没有电解电容器，功率转换器的最大输出电流为恒定电流。

12. 发明授权

US08643297B2 Control circuit and control method for dimming LED lighting circuit 有权
标题翻译： LED照明电路调光控制电路及控制方法
公开(公告)号：US08643297B2
公开(公告)日：2014-02-04
申请号：US13223660
申请日：2011-09-01
申请人： Ta-Yung Yang , Li Lin , Chi-Yin Lo , Kuo-Hsien Huang , Hung-Chun Chen
发明人： Ta-Yung Yang , Li Lin , Chi-Yin Lo , Kuo-Hsien Huang , Hung-Chun Chen
IPC分类号： H05B37/02
CPC分类号： H05B33/0815
摘要： The present invention provides a control circuit for dimming LED lighting. The control circuit comprises a voltage divider, a controller and an adaptive bleeder. The voltage divider receives an input voltage from an input terminal to generate a dimming signal. The controller generates a switching signal in response to the dimming signal. The controller further generates a control signal in response to the input voltage. The adaptive bleeder receives the control signal and draws a bleeder current from the input terminal in response to the control signal.
摘要翻译：本发明提供一种用于调光LED照明的控制电路。控制电路包括分压器，控制器和自适应泄放器。分压器从输入端接收输入电压以产生调光信号。控制器响应于调光信号产生开关信号。控制器还响应于输入电压产生控制信号。自适应泄放器响应于控制信号接收控制信号并从输入端抽取泄放电流。

13. 发明申请

US20110255309A1 High-Speed Reflected Signal Detection for Primary-Side Controlled Power Converters 有权
标题翻译：一次侧控制电源转换器的高速反射信号检测
公开(公告)号：US20110255309A1
公开(公告)日：2011-10-20
申请号：US12840919
申请日：2010-07-21
申请人： Ta-Yung Yang , Li Lin , Chuh-Ching Li , Sheng-Fu Hsu , Rui-Hong Lu
发明人： Ta-Yung Yang , Li Lin , Chuh-Ching Li , Sheng-Fu Hsu , Rui-Hong Lu
IPC分类号： H02M3/335
CPC分类号： H02M3/33523
摘要： A controller for a power converter includes a clamping circuit, a switching circuit and a pulse generator. The clamping circuit is coupled to an input terminal of the controller for detecting a detection signal from a transformer. The switching circuit generates a switching signal to switch the transformer in response to the detection signal for regulating the power converter. A maximum level of the detection signal is clamped to be under a level of a threshold voltage during an off-period of the switching signal. Since the maximum level of the detection signal is clamped and the oscillating energy of the reflected signal is discharged, the speed of detecting the detection signal is increased. Therefore, the regulation of the primary-side controlled power converter can be improved accordingly.
摘要翻译：一种用于功率转换器的控制器包括钳位电路，开关电路和脉冲发生器。钳位电路耦合到控制器的输入端，用于检测来自变压器的检测信号。开关电路响应于用于调节功率转换器的检测信号产生开关信号以切换变压器。检测信号的最大电平在切换信号的截止周期期间被钳位在阈值电压的电平以下。由于检测信号的最大电平被钳位并且反射信号的振荡能量被放电，所以检测信号的速度增加。因此，可以相应地改善初级侧受控功率转换器的调节。

14. 发明授权

US08854841B2 High-speed reflected signal detection for primary-side controlled power converters 有权
标题翻译：用于初级侧受控电源转换器的高速反射信号检测
公开(公告)号：US08854841B2
公开(公告)日：2014-10-07
申请号：US12840919
申请日：2010-07-21
申请人： Ta-Yung Yang , Li Lin , Chuh-Ching Li , Sheng-Fu Hsu , Rui-Hong Lu
发明人： Ta-Yung Yang , Li Lin , Chuh-Ching Li , Sheng-Fu Hsu , Rui-Hong Lu
IPC分类号： H02M3/335
CPC分类号： H02M3/33523
摘要： A controller for a power converter includes a clamping circuit, a switching circuit and a pulse generator. The clamping circuit is coupled to an input terminal of the controller for detecting a detection signal from a transformer. The switching circuit generates a switching signal to switch the transformer in response to the detection signal for regulating the power converter. A maximum level of the detection signal is clamped to be under a level of a threshold voltage during an off-period of the switching signal. Since the maximum level of the detection signal is clamped and the oscillating energy of the reflected signal is discharged, the speed of detecting the detection signal is increased. Therefore, the regulation of the primary-side controlled power converter can be improved accordingly.
摘要翻译：一种用于功率转换器的控制器包括钳位电路，开关电路和脉冲发生器。钳位电路耦合到控制器的输入端，用于检测来自变压器的检测信号。开关电路响应于用于调节功率转换器的检测信号产生开关信号以切换变压器。检测信号的最大电平在切换信号的截止周期期间被钳位在阈值电压的电平以下。由于检测信号的最大电平被钳位并且反射信号的振荡能量被放电，所以检测信号的速度增加。因此，可以相应地改善初级侧受控功率转换器的调节。

15. 发明授权

US08593833B2 Method and apparatus for a flyback power converter providing output voltage and current regulation without input capacitor 有权
标题翻译：用于反激式功率转换器的方法和装置，其提供没有输入电容器的输出电压和电流调节
公开(公告)号：US08593833B2
公开(公告)日：2013-11-26
申请号：US13013100
申请日：2011-01-25
申请人： Ta-Yung Yang , Li Lin
发明人： Ta-Yung Yang , Li Lin
IPC分类号： H02M3/335
CPC分类号： H02M3/33523
摘要： A control circuit of a power converter according to the present invention comprises an output circuit, at least one input circuit and an input-voltage detection circuit. The output circuit generates a switching signal for regulating an output of the power converter in response to at least one feedback signal. The switching signal is coupled to switch a transformer of the power converter. The input circuit samples at least one input signal for generating the feedback signal. The input signal is correlated to the output of the power converter. The input-voltage detection circuit generates an input-voltage signal in response to the level of the an input voltage of the power converter. The input circuit will not sample the input signal when the input-voltage signal is lower than a threshold. The control circuit can eliminate the need of the input capacitor for improving the reliability of the power converter.
摘要翻译：根据本发明的功率转换器的控制电路包括输出电路，至少一个输入电路和输入电压检测电路。输出电路响应于至少一个反馈信号产生用于调节功率转换器的输出的开关信号。开关信号被耦合以切换功率转换器的变压器。输入电路对至少一个用于产生反馈信号的输入信号进行采样。输入信号与功率转换器的输出相关。输入电压检测电路响应于功率转换器的输入电压的电平产生输入电压信号。当输入电压信号低于阈值时，输入电路不会对输入信号进行采样。控制电路可以消除输入电容器的需要，提高功率转换器的可靠性。

16. 发明申请

US20120242252A1 CONTROL CIRCUIT AND CONTROL METHOD FOR DIMMING LED LIGHTING CIRCUIT 有权
标题翻译： LED照明电路调光控制电路及控制方法
公开(公告)号：US20120242252A1
公开(公告)日：2012-09-27
申请号：US13223660
申请日：2011-09-01
申请人： Ta-Yung Yang , Li Lin , Chi-Yin Lo , Kuo-Hsien Huang , Hung-Chun Chen
发明人： Ta-Yung Yang , Li Lin , Chi-Yin Lo , Kuo-Hsien Huang , Hung-Chun Chen
IPC分类号： H05B37/02
CPC分类号： H05B33/0815
摘要： The present invention provides a control circuit for dimming LED lighting. The control circuit comprises a voltage divider, a controller and an adaptive bleeder. The voltage divider receives an input voltage from an input terminal to generate a dimming signal. The controller generates a switching signal in response to the dimming signal. The controller further generates a control signal in response to the input voltage. The adaptive bleeder receives the control signal and draws a bleeder current from the input terminal in response to the control signal.
摘要翻译：本发明提供一种用于调光LED照明的控制电路。控制电路包括分压器，控制器和自适应泄放器。分压器从输入端接收输入电压以产生调光信号。控制器响应于调光信号产生开关信号。控制器还响应于输入电压产生控制信号。自适应泄放器响应于控制信号接收控制信号并从输入端吸取泄放电流。

17. 发明申请

US20120170330A1 SINGLE-STAGE PFC CONVERTER WITH CONSTANT VOLTAGE AND CONSTANT CURRENT 有权
标题翻译：具有恒定电压和恒定电流的单级PFC转换器
公开(公告)号：US20120170330A1
公开(公告)日：2012-07-05
申请号：US13182291
申请日：2011-07-13
申请人： Ta-Yung Yang , Jhih-Da Hsu , Ying-Chieh Su , Li Lin
发明人： Ta-Yung Yang , Jhih-Da Hsu , Ying-Chieh Su , Li Lin
IPC分类号： H02M7/04
CPC分类号： H02M1/4258 , H02M2001/0006 , Y02B70/126
摘要： An exemplary embodiment of a power converter is provided. The power converter includes a transformer, a power device, a switching controller, and a capacitor. The power device is coupled to the transformer for switching the transformer to product output of the power converter. The switching controller receives a feedback signal for generating a switching signal coupled to drive the power device. An input circuit of the switching controller is coupled to the transformer to sample an input signal for generating the feedback signal, and the input signal is correlated to the output of the power converter. The capacitor is coupled to the switching controller to provide frequency compensation for a feedback loop of the power converter. Input of the power converter is without an electrolytic capacitor, and a maximum output current of the power converter is a constant current.
摘要翻译：提供了功率转换器的示例性实施例。功率转换器包括变压器，功率器件，开关控制器和电容器。功率器件耦合到变压器，用于将变压器切换到功率转换器的产品输出。开关控制器接收用于产生耦合以驱动功率器件的开关信号的反馈信号。开关控制器的输入电路耦合到变压器以对输入信号进行采样以产生反馈信号，并且输入信号与功率转换器的输出相关。电容器耦合到开关控制器以为功率转换器的反馈回路提供频率补偿。功率转换器的输入没有电解电容器，功率转换器的最大输出电流为恒定电流。

18. 发明授权

US09520767B2 Protection circuit for power converter 有权
标题翻译：电源转换器保护电路
公开(公告)号：US09520767B2
公开(公告)日：2016-12-13
申请号：US13606025
申请日：2012-09-07
申请人： Ta-Yung Yang
发明人： Ta-Yung Yang
IPC分类号： H02H7/122 , H02M1/32 , H02M3/335 , H02H7/12
CPC分类号： H02M1/32 , H02H7/1216 , H02M3/33523
摘要： A protection circuit of a power converter without an input capacitor is disclosed. The protection circuit comprises a high voltage switch, a detection circuit and a control circuit. The switch senses an input voltage of the power converter via a resistor for generating a first signal. The detection circuit coupled to a transformer senses the input voltage of the power converter for generating a second signal. The control circuit controls a switching signal in response to the first signal and the second signal. The switching signal is utilized to switching the transformer for regulating the power converter; and the level of the first signal and the second signal is correlated a level of the input voltage of the power converter.
摘要翻译：公开了一种没有输入电容器的电源转换器的保护电路。保护电路包括高压开关，检测电路和控制电路。开关通过用于产生第一信号的电阻感测功率转换器的输入电压。耦合到变压器的检测电路感测功率转换器的输入电压以产生第二信号。控制电路响应于第一信号和第二信号控制开关信号。切换信号用于切换用于调节功率转换器的变压器; 并且第一信号和第二信号的电平与功率转换器的输入电压的电平相关。

19. 发明授权

US09148060B2 Switching controller with burst mode management circuit to reduce power loss and acoustic noise of power converter 有权
标题翻译：具有突发模式管理电路的开关控制器，以减少功率转换器的功率损耗和声学噪声
公开(公告)号：US09148060B2
公开(公告)日：2015-09-29
申请号：US12356592
申请日：2009-01-21
申请人： Ta-Yung Yang
发明人： Ta-Yung Yang
IPC分类号： H02M1/00 , H02M3/335 , H02M3/157 , H02M3/156 , H02M1/44
CPC分类号： H02M3/33507 , H02M1/44 , H02M3/156 , H02M3/157 , H02M2001/0032 , H02M2001/0035 , Y02B70/16
摘要： A switching controller of power converter according to the present invention comprises a PWM circuit and a burst-mode management circuit to reduce the power loss and the acoustic noise of the power converter at light-load. The PWM circuit generates a PWM signal. The burst-mode management circuit receives the PWM signal to generate a switching signal for generating a switching current and regulating the output of the power converter. The burst-mode management circuit further generates a current-limit signal in response to the output of the power converter to limit the switching current for reducing the power loss and the acoustic noise of the power converter when the power converter is at light-load.
摘要翻译：根据本发明的电力转换器的开关控制器包括PWM电路和突发模式管理电路，以减轻功率转换器在轻载时的功率损耗和声学噪声。 PWM电路产生PWM信号。突发模式管理电路接收PWM信号以产生用于产生开关电流并调节功率转换器的输出的开关信号。突发模式管理电路还响应于功率转换器的输出而产生限流信号，以限制开关电流，以在功率转换器处于轻负载时降低功率转换器的功率损耗和声学噪声。

20. 发明授权

US08767417B2 Dual switches flyback power converter with wide input voltage range 有权
标题翻译：双开关反激式电源转换器，输入电压范围宽
公开(公告)号：US08767417B2
公开(公告)日：2014-07-01
申请号：US13099595
申请日：2011-05-03
申请人： Chao-Chih Lin , Ta-Yung Yang , Ying-Chieh Su
发明人： Chao-Chih Lin , Ta-Yung Yang , Ying-Chieh Su
IPC分类号： H02M3/335
CPC分类号： H02M3/3353
摘要： A dual switches Flyback power converter with a wide input voltage range according to the present invention comprises an input diode and an energy-storage capacitor. The input diode can prevent the reflected voltage from the power transformer of the power converter to charge the electrolytic capacitor of the power converter. The energy-storage capacitor will store the reflected voltage and the energy of the leakage inductor of the power transformer. The energy stored in the energy-storage capacitor will be recycled to the output voltage of the power converter. Further, the input diode can be replaced by an input transistor to prevent the reflected voltage from the power transformer to charge the electrolytic capacitor.
摘要翻译：根据本发明的具有宽输入电压范围的双重开关反激式功率转换器包括输入二极管和储能电容器。输入二极管可以防止功率转换器的电源变压器的反射电压对功率转换器的电解电容器充电。储能电容器将存储电力变压器的反射电压和漏电感器的能量。存储在储能电容器中的能量将被再循环到功率转换器的输出电压。此外，输入二极管可以由输入晶体管代替，以防止来自电力变压器的反射电压对电解电容器充电。

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