公开(公告)号：US20180019739A1

公开(公告)日：2018-01-18

申请号：US15643863

申请日：2017-07-07

Applicant: DENSO CORPORATION

Inventor： Yohei KONDO ,  Tetsuya DEWA ,  Noriyuki TAKAGI

IPC: H03K17/04 ,  H02P6/14

CPC classification number: H03K17/0406 ,  H02M7/5387 ,  H03K17/042

Abstract: The drive circuit for driving voltage controlled switches includes: charge path connected to gate of the switch, through which gate charge current flows to turn the switch ON; discharge path connected to the gate and output terminal of the switch, through which gate discharge current flows to turn the switch OFF; and at least either, a charging side element disposed on charging side loop path having the gate, a part of the charge path and the output terminal, restricting current flow to be in one direction and not disturbing current flow of charge current; or a discharging side element disposed on a discharging side loop path having the gate, a part of the discharge path and the output terminal, restricting a current flow to be in one direction and not disturbing a current flow of discharge current.