High-voltage heavy-current drive circuit applied in power factor corrector

Patent metadata

Field	Value
Publication number	US-9190897-B2
Application number	US-201214358566-A
Country	US
Kind code	B2
Filing date	Nov 9, 2012
Priority date	Nov 16, 2011
Publication date	Nov 17, 2015
Grant date	Nov 17, 2015

Abstract

A high-voltage heavy-current drive circuit applied in a power factor corrector, comprising a current mirroring circuit ( 1 ), a level shift circuit ( 3 ), a high-voltage pre-modulation circuit ( 2 ), a dead time control circuit ( 4 ) and a heavy-current output stage ( 5 ); the heavy-current output stage adopts a Darlington output stage structure to increase the maximum operating frequency of the drive circuit. The stabilized breakdown voltage characteristic of a voltage stabilizing diode is utilized to ensure the drive circuit operating within a safe voltage range. Adding dead time control into the level shift circuit not only prevents the momentary heavy-current from a power supply to the ground during the level conversion process, but also reduces the static power consumption of the drive circuit.

First claim

What is claimed is:

1. A high-voltage heavy-current drive circuit applied in a power factor corrector, comprising a current mirror circuit ( 1 ), a high-voltage pre-modulation circuit ( 2 ), a level shift circuit ( 3 ), a dead time control circuit ( 4 ), and a heavy-current output stage ( 5 );
wherein the current mirror circuit ( 1 ) is configured to convert an input signal (I bias ) to an input signal of the high voltage pre-modulation circuit using a current source circuit and a…

Assignees

• Csmc Technologies Fab2 Co Ltd

Inventors

• Dai Guoding
• Chen Yue
• Ma Xiaohui
• Han Hui
• Ma Renyue

Classifications

• H02M1/44

  Electricity · mapped topic

• H02M1/12

  Electricity · mapped topic

• H02M1/38

  Electricity · mapped topic

• H02M1/4208 Primary

  Electricity · mapped topic

• H03K17/162

  Electricity · mapped topic