Control protection circuit and piglet feeding machine adopting same

The utility model relates to a control protection circuit and a piglet feeding machine adopting the control protection circuit. The control protection circuit comprises a comparator, a sampling circuit, a reference circuit, a driving circuit, a motor power supply switch and a handle switch, the sampling circuit is used for acquiring a battery sampling voltage; the reference circuit is used for generating reference voltage; the input end of the comparator is respectively connected with the sampling circuit and the reference voltage, and the output end of the comparator is connected with the driving circuit, so that the battery sampling voltage is compared with the reference voltage, the driving circuit is controlled according to a comparison result, and the motor power supply switch is further driven to act; and the handle switch is used for enabling the driving circuit. According to the utility model, the battery of the piglet feeding machine can be prevented from being over-discharged, and the cost is low an