A overvoltage crowbar and wireless electric pile that fills for wireless electric pile that fills

The utility model discloses a wireless overvoltage crowbar who fills electric pile, include that the peak -to -peak value acquires unit, the control unit and controllable switch, the peak -to -peak value acquires the first input end of unit to be connected with the wireless electric pile's of filling first output, and the second input is connected with the wireless electric pile's of filling second output, and the output is connected with the control unit's input for output voltage according to the wireless electric pile of filling obtains the voltage peak -to -peak value, the control unit's output is connected with controllable switch's control end, and controllable switch's first end and the wireless electric pile's of filling power are connected, and the second end is connected with thewireless electric pile's of filling input, and the control unit is used for the wireless electric pile's of filling of control controllable switch disconnection when the voltage peak -to -peak valueis greater than overvoltag