公开(公告)号：US09287774B2

公开(公告)日：2016-03-15

申请号：US14204092

申请日：2014-03-11

Applicant: Richtek Technology Corporation

Inventor： Ching-Jan Chen ,  Shao-Hung Lu ,  Jian-Rong Huang

IPC: G05F1/00 ,  H02M3/156

CPC classification number: H02M3/156

Abstract: A power converter control circuit includes a feedback circuit and a pulse width modulation signal generating circuit for configuring a power stage circuit to provide power to a load. The feedback circuit generates a first gain signal and a second gain signal according to an output voltage sensing signal coupled with the load. The feedback circuit further generates a feedback signal according to the first gain signal and the second gain signal. The pulse width modulation signal generating circuit configures the operation of the power stage circuit according to the feedback signal and a reference signal. Moreover, the feedback circuit and the pulse width modulation signal generating circuit are configured on the same integrated circuit package.

Abstract translation: 电力转换器控制电路包括反馈电路和用于配置功率级电路以向负载提供电力的脉宽调制信号发生电路。 反馈电路根据与负载耦合的输出电压感测信号产生第一增益信号和第二增益信号。 反馈电路还根据第一增益信号和第二增益信号产生反馈信号。 脉宽调制信号发生电路根据反馈信号和参考信号来配置功率级电路的操作。 此外，反馈电路和脉宽调制信号发生电路配置在相同的集成电路封装上。

公开(公告)号：US08502515B1

公开(公告)日：2013-08-06

申请号：US13777869

申请日：2013-02-26

Applicant: Richtek Technology Corporation

Inventor： Yi-Cheng Wan ,  Jian-Rong Huang ,  Hung-Chun Peng

IPC: G05F1/40

CPC classification number: H02M3/1584 ,  H02M2001/0009 ,  H02M2001/0025 ,  H02M2003/1586

Abstract: A multiphase DC-DC converting circuit for providing power to a load is disclosed, having power stage circuits, channel current converting circuits, current detecting circuits, a transconductance amplifier circuit, a comparator circuit, and a channel current balance circuit. The current detecting circuits detect current signals of current channels, and the transconductance amplifier circuit and the comparator circuit are coupled with the current detecting circuits to receive the voltage difference across a resistor, and to generate a total current detecting signal provided to the load. The channel current converting circuit is coupled with the current detecting circuits to generate channel current detecting signals. The channel current balance circuit is coupled with the comparator circuit, the transconductance amplifier circuit and the channel current converting circuit to balance the current signals of the current channels.

Abstract translation: 公开了一种用于向负载提供电力的多相DC-DC转换电路，具有功率级电路，沟道电流转换电路，电流检测电路，跨导放大器电路，比较器电路和沟道电流平衡电路。 电流检测电路检测电流通道的电流信号，并且跨导放大器电路和比较器电路与电流检测电路耦合以接收电阻器两端的电压差，并产生提供给负载的总电流检测信号。 通道电流转换电路与电流检测电路耦合以产生通道电流检测信号。 通道电流平衡电路与比较器电路，跨导放大器电路和沟道电流转换电路耦合，以平衡电流通道的电流信号。