公开(公告)号：US08791725B2

公开(公告)日：2014-07-29

申请号：US14062192

申请日：2013-10-24

Applicant: Richtek Technology Corp.

Inventor： Pei-Kai Tseng ,  Chien-Fu Tang ,  Issac Y. Chen ,  Jyun-Che Ho

IPC: H03K3/00 ,  H03K5/1536

CPC classification number: H02M1/38 ,  G01R19/0084 ,  G01R31/40 ,  H03K5/1536 ,  H05B41/2981

Abstract: A high voltage half-bridge driver circuit has a high voltage terminal and a floating node to be connected with a high side switch therebetween. When turning on the high side switch, a high voltage offset detection circuit detects a voltage related to the voltage at the floating node for triggering a zero voltage switching signal.

Abstract translation: 高电压半桥驱动电路具有高电压端子和浮动节点，以与它们之间的高侧开关连接。 当开启高压侧开关时，高压偏移检测电路检测与浮动节点处的电压相关的电压，以触发零电压切换信号。