公开(公告)号：US20040141344A1

公开(公告)日：2004-07-22

申请号：US10747969

申请日：2003-12-29

Applicant: STMicroelectronics S.A.

Inventor： Benoit Peron ,  Frederic Gautier

IPC: H02M007/00

CPC classification number: H02M5/257 ,  H02M2001/0006

Abstract: An isolated circuit of low-voltage supply of a control circuit of a high-voltage load, in or upstream of a fullwave three-phase rectifying bridge, comprising a first low-voltage capacitor having a first electrode connected to one of the rectified output terminals of the bridge, and at least one second capacitor providing said low voltage, a first electrode of the second capacitor being connected to one of the A.C. input terminals of the bridge, the respective second electrodes of the capacitors being connected by a high-voltage diode having its cathode connected to the second capacitor.

Abstract translation: 一种在全波三相整流桥或其上游的高电压负载控制电路的低电压供电的隔离电路，包括：第一低电压电容器，其具有连接到整流输出端之一的第一电极 以及提供所述低电压的至少一个第二电容器，所述第二电容器的第一电极连接到所述桥接器的一个AC输入端子，所述电容器的各个第二电极由高压二极管 其阴极连接到第二电容器。