Hardware circuit structure for producing clamp power protection board

The utility model relates to a hardware circuit structure for producing a clamp power protection board, which comprises a P-MOSFET (P-Metal-Oxide-Semiconductor Field Effect Transistor) connected with a test mainboard and a power supply and provided with a source electrode, a drain electrode and a grid electrode, the source electrode is connected with the power supply, and the drain electrode is connected with the test mainboard; the output end of the voltage comparator is connected with the grid electrode, and the input end of the voltage comparator is connected with the source electrode through a first resistor. According to the utility model, the control of opening and closing of the P-MOSFET tube is realized through the output of the voltage comparator, so that the power supply or power failure of the test mainboard is controlled, and when the voltage of the input end of the voltage comparator is higher than the threshold voltage of the voltage comparator, the voltage comparator can control the closing of