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1. 发明授权

US09159450B2 Sampling circuit for measuring reflected voltage of transformer for power converter operated in DCM and CCM 有权
标题翻译：用于测量DCM和CCM中功率变换器变压器反射电压的采样电路
公开(公告)号：US09159450B2
公开(公告)日：2015-10-13
申请号：US13847567
申请日：2013-03-20
申请人： SYSTEM GENERAL CORP.
发明人： Li Lin , Yue-Hong Tang , Chin-Yen Lin , Jung-Sheng Chen , Ta-Yung Yang
IPC分类号： G11C27/02 , H03K5/00 , H02M3/335
CPC分类号： G11C27/02 , G11C27/026 , H02M3/33523
摘要： A sampling circuit of the power converter according to the present invention comprises an amplifier circuit receiving a reflected voltage for generating a first signal. A first switch and a first capacitor are utilized to generate a second signal in response to the reflected voltage. A sample-signal circuit generates a sample signal in response to the disable of a switching signal. The switching signal is generated in accordance with a feedback signal for regulating an output of the power converter. The feedback signal is generated in accordance with the second signal. The sample signal is utilized to control the first switch for sampling the reflected voltage. The sample signal is disabled once the first signal is lower than the second signal. The sampling circuit precisely samples the reflected voltage of the transformer of the power converter for regulating the output of the power converter.
摘要翻译：根据本发明的功率转换器的采样电路包括接收用于产生第一信号的反射电压的放大器电路。利用第一开关和第一电容器来响应于反射电压产生第二信号。采样信号电路响应于开关信号的禁用而产生采样信号。根据用于调节功率转换器的输出的反馈信号产生开关信号。反馈信号根据第二信号产生。采样信号用于控制第一开关以对反射电压进行采样。第一个信号低于第二个信号时，采样信号被禁止。采样电路对功率转换器的变压器的反射电压进行精确采样，以调节功率转换器的输出。

2. 发明授权

US09337713B2 Sampling circuit for measuring the reflected voltage of transformer for power converter 有权
标题翻译：用于测量变压器反射电压的采样电路
公开(公告)号：US09337713B2
公开(公告)日：2016-05-10
申请号：US13848102
申请日：2013-03-21
申请人： SYSTEM GENERAL CORP.
发明人： Chin-Yen Lin , Jung-Sheng Chen , Li Lin , Yue-Hong Tang
IPC分类号： H02M3/335 , H02M1/08 , G01R31/40
CPC分类号： H02M1/08 , G01R31/40 , H02M3/33523
摘要： A sampling circuit of the power converter according to the present invention comprises an amplifier circuit receiving a reflected voltage for generating a first signal. A first switch and a first capacitor are utilized to generate a second signal in response to the reflected voltage. A sample-signal circuit generates a sample signal in response to a falling edge of a switching signal. The switching signal is generated in accordance with a feedback signal for regulating an output of the power converter. The feedback signal is generated in accordance with the second signal. The sample signal is utilized to control the first switch for sampling the reflected voltage. The sample signal is disabled once the first signal is lower than the second signal. The sampling circuit precisely samples the reflected voltage of the transformer of the power converter for regulating the output of the power converter.
摘要翻译：根据本发明的功率转换器的采样电路包括接收用于产生第一信号的反射电压的放大器电路。利用第一开关和第一电容器来响应于反射电压产生第二信号。采样信号电路响应于开关信号的下降沿产生采样信号。根据用于调节功率转换器的输出的反馈信号产生开关信号。反馈信号根据第二信号产生。采样信号用于控制第一个开关以对反射电压进行采样。第一个信号低于第二个信号时，采样信号被禁止。采样电路对功率转换器的变压器的反射电压进行精确采样，以调节功率转换器的输出。

3. 发明授权

US09252674B2 Transistor gate driver with charge pump circuit for offline power converters 有权
标题翻译：晶体管栅极驱动器，带离子电源转换器的电荷泵电路
公开(公告)号：US09252674B2
公开(公告)日：2016-02-02
申请号：US14088628
申请日：2013-11-25
申请人： SYSTEM GENERAL CORP.
发明人： Ta-Yung Yang , Chin-Yen Lin , Jung-Sheng Chen , Li Lin
IPC分类号： H02M3/335 , H03K17/06
CPC分类号： H02M3/33523 , H03K17/063
摘要： A controller of the power converter according to the present invention comprises a gate driver. The gate driver generates a gate-drive signal. The gate-drive signal is coupled to drive a power transistor to switch a transformer of the power converter for regulating an output of the power converter. The gate driver has a charge-pump circuit for charging pump a voltage level of the gate-drive signal. Therefore, the gate-drive signal can fully turn on the power transistor.
摘要翻译：根据本发明的功率转换器的控制器包括栅极驱动器。栅极驱动器产生栅极驱动信号。栅极驱动信号被耦合以驱动功率晶体管以切换功率转换器的变压器，以调节功率转换器的输出。栅极驱动器具有电荷泵电路，用于对栅极驱动信号的电压电平进行充电。因此，栅极驱动信号可以完全打开功率晶体管。

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