SWITCH CONTROL CIRCUIT FOR POWER SUPPLY AND POWER SUPPLYING CIRCUIT

A switch control circuit for a power supply and a power supplying circuit are provided. The switch control circuit includes: a cathode of a diode is connected with a negative electrode of the power supply, an anode of the diode is connected with a first terminal of a short circuit protection element, a second terminal of the short circuit protection element is connected with a first terminal of a switch unit, a second terminal of the switch unit is connected with a first junction of a contactor, and a second junction of the contactor is connected with a positive electrode of the power supply. The short circuit protection element is configured to provide short circuit protection to a loop to which it belongs. The switch unit is configured to control on/off of the loop to which it belongs. The control circuit and the power supplying circuit can improve the reliability of power supplying.