The invention provides a driving circuit and a bridge arm circuit for a field effect transistor, and vehicle-mounted charging equipment. In the driving circuit, an opening unit provides a driving signal for a field effect transistor through a driving signal line; the first turn-off and crosstalk suppression unit and the second crosstalk suppression unit are connected in parallel between the driving signal line and the ground signal line; the first end of the voltage stabilization and bidirectional crosstalk discharge unit is electrically connected to a positive power supply, and the second end of the voltage stabilization and bidirectional crosstalk discharge unit is connected with the ground signal line; a driving signal line and the ground signal line are connected to the field effect transistor; the first turn-off and crosstalk suppression unit and the voltage stabilization and bidirectional crosstalk discharge unit are used together for negative voltage turn-off of the field effect transistor. According to the technical scheme of the invention, the influence of crosstalk on the field effect transistor can be reduced.
本申请提供一种用于场效应晶体管的驱动电路和桥臂电路及车载充电设备。在驱动电路中,开通单元通过所述驱动信号线向所述场效应晶体管提供驱动信号;第一关断及串扰抑制单元和第二串扰抑制单元并联在所述驱动信号线和所述地信号线之间;稳压及双向串扰泄放单元的第一端电连接至正电源,所述稳压及双向串扰泄放单元的第二端接所述地信号线;驱动信号线和所述地信号线连接至所述场效应晶体管;第一关断及串扰抑制单元与所述稳压及双向串扰泄放单元一起用于所述场效应晶体管的负压关断。根据本申请的技术方案有利于降低串扰对场效应晶体管的影响。
Driving circuit and bridge arm circuit for field effect transistor and vehicle-mounted charging equipment
用于场效应晶体管的驱动电路和桥臂电路及车载充电设备
2024-03-19
Patent
Elektronische Ressource
Chinesisch
IPC: | H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
Europäisches Patentamt | 2021
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