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Title:
SURGE PROTECTION METHOD AND APPARATUS, PROTECTION CIRCUIT, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2021/073419
Kind Code:
A1
Abstract:
Embodiments of the present disclosure provide a surge protection method and apparatus, a protection circuit, and a storage medium. The protection circuit comprises: a first fusing unit, a protection unit, a unidirectional conduction unit, an energy storage unit, and an energy storage and discharge unit; the first fusing unit and the unidirectional conduction unit are separately connected to a positive electrode of a power supply, the protection unit and the energy storage unit are separately connected to a negative electrode of the power supply, the first fusing unit and the protection unit are connected in series, the unidirectional conduction unit and the energy storage unit are connected in series, the energy storage and discharge unit is connected in parallel to the energy storage unit, and the power supply is connected in series to a MOS tube; when an input voltage is a normal voltage, the first fusing unit is not conducting with the protection unit, the unidirectional conduction unit is not conducting with the energy storage unit, and the MOS tube works with the normal voltage; when the input voltage is a positive surge, the first fusing unit is conducting with the protection unit, and the unidirectional conduction unit is not conducting with the energy storage unit; when the input voltage is a negative surge, the first fusing unit is not conducting with the protection unit, and the unidirectional conduction unit is conducting with the energy storage unit.

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Inventors:
XIE CHANGJIANG (CN)
ZHAO JING (CN)
ZHOU XIANCHI (CN)
HUANG GUOQIANG (CN)
LI XIN (CN)
Application Number:
PCT/CN2020/118506
Publication Date:
April 22, 2021
Filing Date:
September 28, 2020
Export Citation:
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Assignee:
ZTE CORP (CN)
International Classes:
H02H9/04; H02H9/06
Foreign References:
CN106786459A2017-05-31
CN205407247U2016-07-27
CN1186375A1998-07-01
JP2003070156A2003-03-07
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
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