POWER SWITCHING CIRCUIT

A power switching circuit is connected to a first power supply, a second power supply, a first circuit and a second circuit. The power switching circuit has a first main path, a second main path, a first switching path, and a second switching path. The power switching circuit has a control circuit that forms a power supply path by controlling each of the first main path, the second main path, the first switching path, and the second switching path in either a conducting or non-conducting state. When a failure is generated in one of the first circuit and the second circuit, the control circuit forms a power supply path that does not affect the operation of the other of the first circuit and the second circuit.