Capacitor charge protection circuit for external defibrillator and external defibrillator

The embodiment of the invention discloses a capacitor charge protection circuit for an external defibrillator and the external defibrillator. The capacitor charge protection circuit comprises a control circuit power supply, a transformer, a rectifier, a capacitor to be charged, a switch, a switch control steady-state trigger unit, a signal drive unit and a microcontroller. The control circuit power supply is connected with one side of a primary coil of the transformer; the other side of the primary coil of the transformer is connected with the first end of the switch; the second end of the switch is grounded, and the third end of the switch is connected with a switch drive signal; one end of a secondary coil of the transformer is connected with the first input end of the rectifier, and the other end of the secondary coil of the transformer is connected with the second input end of the rectifier; the output end of the rectifier is connected with the capacitor to be charged; the output end of the signal drive unit is connected with the third end of the switch, and the input end of the signal drive unit is connected with the output end of the switch control steady-state trigger unit; the output end of the microcontroller is connected with the input end of the switch control steady-state trigger unit. By means of the capacitor charge protection circuit, the working reliability of the external defibrillator can be improved.