Title:
AC/DC CONVERSION POWER SUPPLY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/186731
Kind Code:
A1
Abstract:
An AC/DC conversion power supply system comprises a power supply and an operating frequency inverter connected to the power supply, and further comprises a direct current boost circuit connected to a direct current wiring terminal of a main board of the operating frequency inverter and a transformer selection relay connected to an alternating current wiring terminal. The direct current boost circuit is connected to a direct current charging relay and a contactor, and the contactor is connected to a rectification filter circuit. A control terminal of the transformer selection relay is connected to an output relay and a current detection circuit. The current detection circuit is connected to a mains inversion power supply selection relay. A normally closed terminal of the transformer selection relay is connected to a low-capacity transformer, and a normally open terminal thereof is connected to a first mains charging selection relay. A normally open terminal of the first mains charging selection relay is connected to the rectification filter circuit and then to the contactor, a normally closed terminal thereof is connected to a high-capacity transformer and then to a second mains charging selection relay, and a control terminal of the first mains charging selection relay is connected to a control terminal of the second mains charging selection relay.
Inventors:
XIE ZHIHE (CN)
Application Number:
PCT/CN2019/109902
Publication Date:
September 24, 2020
Filing Date:
October 08, 2019
Export Citation:
Assignee:
XIE ZHIHE (CN)
International Classes:
H02J9/06
Foreign References:
| CN104882913A | 2015-09-02 | |||
| CN209389777U | 2019-09-13 | |||
| CN109818414A | 2019-05-28 | |||
| CN201160259Y | 2008-12-03 | |||
| US20100188066A1 | 2010-07-29 |
Attorney, Agent or Firm:
BEIJING KUAIZHIHUI IP AGENCY CO., LTD (CN)
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