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Patent Searching and Data


Title:
POWER FACTOR CORRECTION CIRCUIT AND AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2020/232993
Kind Code:
A1
Abstract:
A power factor correction circuit and an air conditioner. The power factor correction circuit comprises: a power factor correction module (10) used for receiving a power supply signal, the power factor correction module (10) comprising a switch tube, the switch tube being configured to control the power supply signal to supply power to a load; drive modules (202, 204) connected to a drive input end of the switch tube and used for outputting a switch signal to the switch tube; a control module (30) connected to the drive modules (202, 204) and used for controlling the drive modules (202, 204) to enable an output switch signal or disable an output switch signal; a current transformer (40) provided at an input side of the power factor correction module (10) to collect a sampling signal; and a drive protection module (50) connected to the current transformer (40) and the control module (30) and used for outputting a protection signal to the control module (30). By means of the technical solution, whether an abnormality occurs in a rectifier can be detected more directly, and when it is determined that an abnormality occurs, corresponding abnormal components can be determined in different working conditions.

Inventors:
BAO DIANSHENG (CN)
Application Number:
CN2019/117014
Publication Date:
November 26, 2020
Filing Date:
November 11, 2019
Export Citation:
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Assignee:
GD MIDEA AIR CONDITIONING EQUIPMENT CO LTD (CN)
International Classes:
H02M1/42
Foreign References:
CN209545434U2019-10-25
CN110011531A2019-07-12
CN108599549A2018-09-28
CN106655101A2017-05-10
CN109525107A2019-03-26
US20140247522A12014-09-04
Attorney, Agent or Firm:
YOULINK INTELLECTUAL PROPERTY LAW FIRM (CN)
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