LOAD AND STERILIZATION COMBINATION CONTROL CIRCUIT

A load and sterilization combination control circuit arranged on a suction device includes a main control unit, a battery management unit, a load output unit, a load detection circuit and an ultraviolet sterilization circuit including an operation switch and an enabled switch connected with the operation switch in series and the main control unit. The load detection unit and the enabled switch are conducted to externally output. When a load of the suction device applied on the load output unit is detected by the main control unit via the load, detection circuit, the operation switch is configured to perform on-off control on the entire ultraviolet sterilization circuit after the enabled switch is turned on. The present disclosure can avoid waste electricity due to misoperation by performing a linkage control thereof and the ultraviolet sterilization circuit can work normally only after by connecting with the load and closing the operation switch.