公开(公告)号：US09246380B2

公开(公告)日：2016-01-26

申请号：US14331554

申请日：2014-07-15

Applicant: ASIAN POWER DEVICES INC.

Inventor： Chih-Lung Yang ,  Tsung-Liang Hung

IPC: G05F1/00 ,  H02M1/42 ,  H02M1/00

CPC classification number: H02M1/4225 ,  H02M2001/0012 ,  H02M2001/0032 ,  H02M2001/0054 ,  Y02B70/126 ,  Y02B70/1491 ,  Y02B70/16 ,  Y02P80/112

Abstract: A control circuit module for a power factor corrector is provided to convert the operation mode of the inductor current from the boundary conduction mode (BCM) to the discontinuous conduction mode (DCM) when a transistor element is operated under the valley inductor current, thus reducing the switching frequency and increasing system efficiency, also to maintain the operation mode of the inductor current in the BCM when the transistor element is operated under the peak inductor current, thus maintaining system efficiency.

Abstract translation: 提供了一种用于功率因数校正器的控制电路模块，用于当晶体管元件在谷值电感电流下工作时，将电感电流从边界导通模式（BCM）的工作模式转换为不连续导通模式（DCM），从而减小 开关频率和提高系统效率，同时在晶体管元件工作在峰值电感电流下时，保持BCM中电感电流的工作模式，从而保持系统效率。