PPTC (Polymeric Positive Temperature Coefficient) resettable fuse protection circuit for peak clipping and blockage suppression of motor

The utility model provides a PPTC (Polymeric Positive Temperature Coefficient) resettable fuse protection circuit for peak clipping and blocking suppression of a motor, which comprises a resettable fuse PPTC, a rectifier bridge IC1, a positive and negative rotation control chip IC2, a capacitor C1, a capacitor C2 and a common mode inductor L1, and is characterized in that a first input end of the rectifier bridge IC1 is connected with the resettable fuse PPTC and then connected with an input power supply; the second input end of the rectifier bridge IC1 is connected with an input power supply, the positive output end of the rectifier bridge IC1 is connected with the positive input end of the positive and negative rotation control chip IC2, and the negative output end of the rectifier bridge IC1 is connected with the negative input end of the positive and negative rotation control chip IC2. The motor protection circuit has the beneficial effects that the motor protection circuit is provided, the motor protecti