Title:
DISCHARGE CONTROL CIRCUIT, SWITCHING POWER SUPPLY, AND DISCHARGE CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/142619
Kind Code:
A1
Abstract:
A discharge control circuit, a switching power supply, and a discharge control device. The discharge control circuit comprises: a control circuit (101), a photoelectric coupler (102), and a discharge circuit (103), wherein the photoelectric coupler (102) comprises an input end and an output end; the discharge circuit (103) comprises a first discharge circuit (104) and a second discharge circuit (105); an input end of the control circuit (101) is an external input voltage; the control circuit (101) is used for controlling an output duration and an output interval duration of an output voltage according to the external input voltage; the input end of the photoelectric coupler (102) is connected to an output end of the control circuit (101); the output end of the photoelectric coupler (102) is connected to the first discharge circuit (104); the first discharge circuit (104) is connected to the second discharge circuit (105). The discharge circuit has the advantages of stability, reliability and high safety.
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Inventors:
LUO LE (CN)
CHEN LIJUN (CN)
WU RENHUA (CN)
CHEN LIJUN (CN)
WU RENHUA (CN)
Application Number:
PCT/CN2020/072011
Publication Date:
July 22, 2021
Filing Date:
January 14, 2020
Export Citation:
Assignee:
SHINRY TECH CO LTD (CN)
International Classes:
H02M1/32
Foreign References:
| CN108988622A | 2018-12-11 | |||
| CN108988622A | 2018-12-11 | |||
| CN2602605Y | 2004-02-11 | |||
| CN106787657A | 2017-05-31 | |||
| CN109149917A | 2019-01-04 | |||
| US20080173626A1 | 2008-07-24 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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