公开(公告)号：US20160285366A1

公开(公告)日：2016-09-29

申请号：US15076908

申请日：2016-03-22

Applicant: RICHTEK TECHNOLOGY CORPORATION

Inventor： Yi-Wei Lee ,  Isaac Y. Chen

IPC: H02M3/156 ,  H02M1/14 ,  H02M1/08

CPC classification number: H02M3/156 ,  H02M1/08 ,  H02M1/14 ,  H02M2001/0009 ,  H02M2001/0048 ,  H03K17/166 ,  H03K2217/0027 ,  H05B33/0815 ,  H05B33/0824 ,  Y02B20/347 ,  Y02B70/1491

Abstract: The present invention discloses a current regulator circuit capable of reducing current ripple and a method of reducing current ripple. A power supply circuit generates a load current which originally has a current ripple. The load current is supplied to a load circuit. The current regulator circuit includes a regulator switch coupled to the load circuit, a current sense circuit for sensing the load current, and a control circuit. The control circuit controls the regulator switch to regulate a peak of a current sense signal minus an average of the current sense signal to a non-negative first predetermined value, or regulate the peak minus a valley of the current sense signal to a non-negative second predetermined value.

Abstract translation: 本发明公开了一种能够减小电流纹波的电流调节电路和减小电流纹波的方法。 电源电路产生最初具有电流纹波的负载电流。 负载电流被提供给负载电路。 电流调节器电路包括耦合到负载电路的调节器开关，用于感测负载电流的电流检测电路和控制电路。 控制电路控制调节器开关以调节电流感测信号的峰值减去电流感测信号的平均值为非负的第一预定值，或将峰值减去电流感测信号的谷值为非负值 第二预定值。