Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
January 28, 2020
Patent Application Number
15789448
Date Filed
October 20, 2017
Patent Citations
Patent Primary Examiner
Patent abstract
The present invention proposes power battery pre-charge system and device for an electric vehicle, said power battery pre-charge device comprises a pre-charge circuit formed by a current source circuit and a bus capacitor, wherein said current source circuit provides a current for charging the bus capacitor, wherein said current source circuit includes a triode, a first resistor, a second resistor and at least two high-voltage MOSFET transistors. The power battery pre-charge system and device for an electric vehicle as disclosed in the present invention have high charging efficiency, low cost and low failure rate.
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