POWER SUPPLY SWITCHING CONTROL SYSTEM

A power supply switching control system (1) switches a power supply for supplying power to a load (L) between a first power supply (2) and a second power supply (3) in a power supply system. The power supply switching control system includes a first switch (12) provided between the first power supply and the load in the power supply path and configured to cut off a current flowing from the second power supply to the first power supply in an off state of the first switch, a second switch (13) provided between the second power supply and the load in the power supply path and configured to cut off a current flowing from the first power supply to the second power supply in an off state of the second switch, and a control unit (7, 23) configured to set the second switch in an on state when the second power supply is charged.