Proportional valve control circuit and controller

The utility model relates to a control circuit, in order to solve the problem that the existing proportional valve control circuit is poor in safety, the utility model provides a proportional valve control circuit and a controller, in the proportional valve control circuit, a power supply module comprises a voltage reduction module and an MOS (Metal Oxide Semiconductor) tube; the input end of the MOS tube and the input end of the voltage reduction module are both connected with a power supply end, and the output end of the MOS tube is connected with the high-side driving circuit; the logic module is in communication connection with the main processor and used for monitoring PWM signals output by the main processor, the driving module is used for on-off control of the MOS tube, the input end of the driving module is connected with the logic module, and the output end of the driving module is connected with the grid electrode of the MOS tube. According to the utility model, the monitoring module is added to mon