The invention provides a switch tube switch driving circuit and an electric vehicle charging pile. The switch tube switch driving circuit comprises a switch-on driving circuit and a negative voltage switch-off circuit. The positive electrode end of the turn-on driving circuit is electrically connected with the positive electrode end of the driving signal end of the controlled switching tube through a first wire. The negative electrode end of the turn-on driving circuit is electrically connected with the negative electrode end of the driving signal of the controlled switch tube through a second wire. A first diode and a resistor are electrically connected between the first wire and the second wire, the positive electrode end of the first diode is electrically connected with the first wire, the negative electrode end of the first diode is electrically connected with one end of the resistor, and the other end of the resistor is electrically connected with the second wire; a circuit node is formed at the electrical connection position of the other end of the resistor and the second wire, and a capacitor is electrically connected between the circuit node and the negative electrode end of the opening drive circuit. According to the switching tube switch driving circuit provided by the embodiment of the invention, the controlled switching tube can be reliably turned off, and the turn-off speed of the controlled switching tube can be accelerated.
本申请提供一种开关管开关驱动电路及电动车辆充电桩,该开关管开关驱动电路包括开通驱动电路和负压关断电路;开通驱动电路的正极端通过第一导线与受控开关管的驱动信号端的正极端电连接;开通驱动电路的负极端通过第二导线与受控开关管的驱动信号的负极端电连接;在第一导线与第二导线之间电连接有第一二极管和电阻,第一二极管的正极端与第一导线电连接,一二极管的负极端与电阻一端电连接,电阻的另一端与第二导线电连接;电阻的另一端与第二导线电连接处形成有电路节点,在电路节点与开通驱动电路的负极端之间电连接有电容器。本申请实施例提供的开关管开关驱动电路不仅可以使得受控开关管可靠关断,还可以加快受控开关管的关断速度。
Switching tube switch driving circuit and electric vehicle charging pile
开关管开关驱动电路及电动车辆充电桩
2023-03-14
Patent
Electronic Resource
Chinese
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