公开(公告)号：US20190074760A1

公开(公告)日：2019-03-07

申请号：US15919199

申请日：2018-03-12

Applicant: DELTA ELECTRONICS, INC.

Inventor： Lei-Chung HSING ,  Kuo-Ying LIU

IPC: H02M1/084 ,  H02M1/38 ,  H02M7/538 ,  H02M7/217 ,  H03K17/16

Abstract: A driving circuit includes a power switch driver and a plurality of current-limiting circuits. The power switch driver is configured to output a driving signal according to a switching signal. Each of the current-limiting circuits has an input terminal electrically coupled to a corresponding one of output terminals of the power switch driver respectively. Output terminals of the current-limiting circuits are electrically coupled to a control terminal of a power switch. The power switch driver is configured to selectively output the driving signal to one of a plurality of output terminals according to a load state of the power switch, such that the driving signal is outputted to the control terminal of the power switch via one of the current-limiting circuits.