公开(公告)号：EP3651547A1

公开(公告)日：2020-05-13

申请号：EP19194342.2

申请日：2019-08-29

Applicant: LG Electronics Inc.

Inventor： KWACK, Younghwan ,  SO, Seongho ,  YANG, Jaekyung ,  LEE, Yongsoo

IPC: H05B6/06

Abstract: An induction heating device includes a working coil, an inverter including a first switching element and a second switching element; a gate driver including a first sub-gate driver and a second sub-gate driver; and a protection circuit disposed between the inverter and the gate driver. The protection circuit includes a first resistor disposed between a gate terminal of the first switching element and an output terminal of the first sub-gate driver, a second resistor connected electrically in parallel to the first resistor, a protection circuit resistor disposed between a reference voltage terminal of the first sub-gate driver and a first node between the first switching element and the second switching element, a protection circuit diode disposed between a ground and a second node between the protection circuit resistance and the reference voltage terminal, and a bootstrap circuit disposed between the second node and the external power supply.

公开(公告)号：EP3651547B1

公开(公告)日：2020-11-04

申请号：EP19194342.2

申请日：2019-08-29

Applicant: LG Electronics Inc.

Inventor： KWACK, Younghwan ,  SO, Seongho ,  YANG, Jaekyung ,  LEE, Yongsoo

IPC: H05B6/06