Title:
DIRECT-CURRENT POWER SUPPLY AND SERIES AND PARALLEL CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2020/010729
Kind Code:
A1
Abstract:
Provided in the present invention are a direct-current power supply and a series and parallel circuit. The circuit comprises a first DC/DC conversion unit and a second DC/DC conversion unit for converting a received direct current and then outputting same; a first unidirectional conduction device, with one end being electrically connected to the first DC/DC conversion unit, and the other end being electrically connected to a positive electrode output end; and a selection unit, with a first end being electrically connected to the first DC/DC conversion unit, a second end being electrically connected to a second unidirectional conduction device, and a third end being electrically connected to a negative electrode output end, wherein the selection unit receives an instruction of a control module and enables the first DC/DC conversion unit and the second DC/DC conversion unit to be in connection in series or in parallel in response to the instruction; the other end of the second unidirectional conduction device is electrically connected to the positive electrode output end; and the second DC/DC conversion unit is electrically connected to an end of the second unidirectional conduction device and the second end, and the second DC/DC conversion unit is electrically connected to the negative electrode output end. The direct-current power supply provided with the circuit meets charging requirements of electric vehicles on the market.
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Inventors:
DAI GUOFENG (CN)
Application Number:
PCT/CN2018/109367
Publication Date:
January 16, 2020
Filing Date:
October 08, 2018
Export Citation:
Assignee:
SHENZHEN EN PLUS TECH CO LTD (CN)
International Classes:
H02J7/00; H02J7/02
Foreign References:
| CN105119334A | 2015-12-02 | |||
| CN102474111A | 2012-05-23 | |||
| CN102651566A | 2012-08-29 | |||
| CN104868755A | 2015-08-26 | |||
| CN103117543A | 2013-05-22 | |||
| JPH0731069A | 1995-01-31 |
Attorney, Agent or Firm:
SUZHOU ZHIPIN IP PARTNERS (CN)
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