Hot-swap protection device and method for charging and discharging equipment

Abstract

The present invention provides a hot-swap protection device and method for charging and discharging equipment in the field of power electronics technology. The device includes a transistor Q1, a MOS transistor Q2, a diode D1-3, a resistor R1-7, a capacitor C1-2, and a terminal J1-3; pin 1 of the transistor Q1 is connected to the resistor R2, pin 2 is connected to the resistor R3 and the diode D2, and pin 3 is connected to the terminal J2, the resistor R5, the diode D3, the resistor R3, the capacitor C1, the resistor R4, the diode D1, and the pin 2 of the MOS transistor Q2; pin 1 of the MOS transistor Q2 is connected to the resistor R1, the diode D1, the resistor R4, the capacitor C1, and the resistor R2, and pin 3 is connected to the resistor R7 and the capacitor C2; the terminal J1 is connected to the resistor R1; one end of the resistor R6 is connected to the input end of the diode D2, and the other end is connected to the output end of the resistor R5, the resistor R7, and the diode D3; the terminal J3 is connected to the capacitor C2. The advantages of the present invention are: the cost of current surge suppression is greatly reduced, and the safety of current surge suppression is greatly improved.

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