Title:
PFC CIRCUIT AND AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2021/004451
Kind Code:
A1
Abstract:
Disclosed in the present application are a PFC circuit and an air conditioner. The PFC circuit comprises: an electric reactor; a rectification circuit; a PFC driving circuit for outputting a corresponding PFC driving signal according to a received control signal; a PFC switching circuit which outputs a power supply connected to a first input/output end to a second input/output end according to the PFC driving signal, or outputs the power supply connected to the second input/output end to the first input/output end; an overcurrent protection circuit, a detection end of the overcurrent protection circuit being connected to the second input/output end of the PFC switching circuit, and the output end of the overcurrent protection circuit being connected to the PFC driving circuit; and an overcurrent protection circuit for controlling the PFC driving circuit to stop outputting the PFC driving signal when detecting that the current flowing through the PFC switching circuit reaches a preset current threshold.
Inventors:
HU REN (CN)
WANG MINGMING (CN)
ZHOU WEIJIAN (CN)
ZHANG GUANGZHI (CN)
WANG MINGMING (CN)
ZHOU WEIJIAN (CN)
ZHANG GUANGZHI (CN)
Application Number:
PCT/CN2020/100625
Publication Date:
January 14, 2021
Filing Date:
July 07, 2020
Export Citation:
Assignee:
GD MIDEA AIR CONDITIONING EQUIPMENT CO LTD (CN)
MIDEA GROUP CO LTD (CN)
MIDEA GROUP CO LTD (CN)
International Classes:
H02M1/42
Foreign References:
| CN110417251A | 2019-11-05 | |||
| CN202309510U | 2012-07-04 | |||
| CN202167837U | 2012-03-14 | |||
| CN206479835U | 2017-09-08 | |||
| CN203859699U | 2014-10-01 | |||
| CN203872383U | 2014-10-08 | |||
| US20180166976A1 | 2018-06-14 |
Attorney, Agent or Firm:
CENFO INTELLECTUAL PROPERTY AGENCY (CN)
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