The invention discloses an active short-circuit protection circuit of an electric automobile, and belongs to the technical field of electric automobiles. The active short-circuit protection circuit comprises a control module and a logic circuit, wherein the control module is used for generating driving signals, a drive enable signal and a short-circuit enable signal; the logic circuit is used for controlling six power switching devices to be all disconnected when the drive enable signal is first level, controlling on-off of two series connected power switching devices when the drive enable signal is second level, the short-circuit enable signal is the first level and at least one of the driving signals controlling on-off of the series connected power switching devices is the first level, and controlling three power switching devices, whose first electrodes are mutually connected, to be conducted and controlling three power switching devices, whose second electrodes are mutually connected, to be disconnected when both the drive enable signal and the short-circuit enable signal are the second level. The active short-circuit protection circuit disclosed by the invention improves the safety and the service life of the electric automobile.
Active short-circuit protection circuit of electric automobile
20.01.2016
Patent
Elektronische Ressource
Englisch
Active short-circuit circuit of motor and electric automobile
Europäisches Patentamt | 2023
|Charging protection circuit, charging method of electric automobile and electric automobile
Europäisches Patentamt | 2020
|Control method and device for driving active short circuit for electric automobile
Europäisches Patentamt | 2022
|