Title:
BRIDGE DRIVE CIRCUIT ON INVERTER
Document Type and Number:
WIPO Patent Application WO/2020/062963
Kind Code:
A1
Abstract:
Disclosed in the present invention is a bridge drive circuit on an inverter, comprising a charging circuit and a drive circuit, wherein the charging circuit comprises a first diode D1 and a first capacitor C2, and the charging circuit is used to charge the first capacitor C2 by means of a first supply voltage so as to supply a second supply voltage by means of the first capacitor C2; the drive circuit comprises a first transistor Q2, and a collector of the first transistor Q2 is also connected to a controlled end of an upper bridge transistor Q3 of a bridge-type inverter circuit and is used for driving the connection or disconnection of the upper bridge transistor Q3 of the bridge-type inverter circuit by means of the second supply voltage outputted by the first capacitor C2. The bridge drive circuit on an inverter of the present invention is simple, highly reliable, has low overall power and low production costs. At the same time, the bridge drive circuit on an inverter may prevent the upper bridge transistor Q3 and a lower bridge transistor Q5 from directly connecting.
Inventors:
XU XINHUA (CN)
TANG FENG (CN)
TANG FENG (CN)
Application Number:
PCT/CN2019/092344
Publication Date:
April 02, 2020
Filing Date:
June 21, 2019
Export Citation:
Assignee:
GUANGDONG BESTEK E COMMERCE CO LTD (CN)
International Classes:
H02M1/08; H02M1/38
Foreign References:
| CN108900076A | 2018-11-27 | |||
| CN201975986U | 2011-09-14 | |||
| CN101090242A | 2007-12-19 |
Attorney, Agent or Firm:
GUANGZHOU NANFENG PATENT AGENCY CO. LTD. (CN)
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