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Patent Searching and Data


Title:
DC/DC CONVERSION CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2020/125343
Kind Code:
A1
Abstract:
Provided by the present application is a DC/DC conversion circuit, comprising an input terminal, a power circuit, and an output terminal, which is characterized in further comprising a bypass circuit, wherein the bypass circuit is a unidirectional conducting circuit; a switch S is provided between the input terminal and the power circuit, and the input terminal is used to connect to one or more external power sources; the external power source is used to supply power to the DC/DC conversion circuit; the bypass circuit is connected between the input terminal and the power circuit, and the bypass circuit is provided between the switch S and the power circuit, the bypass circuit being connected in parallel to the power circuit; and the switch S is used for closing when the input terminal and the external power source are connected in reverse, so that a current outputted by a positive electrode of the external power source flows through the bypass circuit and the switch S, and flows back to a negative electrode of the external power source.

Inventors:
GAO YONGBING (CN)
WANG JUN (CN)
SHI LEI (CN)
Application Number:
PCT/CN2019/121009
Publication Date:
June 25, 2020
Filing Date:
November 26, 2019
Export Citation:
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Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H02M3/155; H02H11/00
Foreign References:
CN102496923A2012-06-13
CN201994659U2011-09-28
CN206272229U2017-06-20
US6043965A2000-03-28
CN201811546964A2018-12-18
Other References:
See also references of EP 3883080A4
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