公开(公告)号：US09647561B2

公开(公告)日：2017-05-09

申请号：US14510445

申请日：2014-10-09

Applicant: SYSTEM GENERAL CORPORATION

Inventor： Ta-Yung Yang ,  Chen-Hua Chiu ,  Chien-Yuan Lin ,  Jung-Sheng Chen ,  Yuan-Pu Lee

IPC: H02M1/32 ,  H02M3/335 ,  H02M1/36 ,  H02M1/00

CPC classification number: H02M3/33507 ,  H02M1/32 ,  H02M1/36 ,  H02M2001/0025

Abstract: 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.

公开(公告)号：US09502982B2

公开(公告)日：2016-11-22

申请号：US14340809

申请日：2014-07-25

Applicant: SYSTEM GENERAL CORPORATION

Inventor： Ta-Yung Yang ,  Jung-Sheng Chen ,  Li Lin

IPC: H02M3/335

CPC classification number: H02M3/33507

Abstract: 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.

Abstract translation: 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。