POWER SUPPLY CONTROL DEVICE

摘要

PROBLEM TO BE SOLVED: To prevent malfunction caused by abnormal heat evolution of a semiconductor power element, with a simple configuration.SOLUTION: A power supply control device 10 for controlling power supplied from a power source B to a load L comprises: a plurality of MOSFETs 12A to 12C arranged in parallel on a path from the power source B to the load L; a control unit 14 for controlling on/off of the MOSFETs 12A to 12C; and an abnormality detection unit 16 for detecting abnormality of the MOSFETs 12A to 12C. When the abnormality detection unit 16 detects abnormality of a MOSFET 12A to 12C in the case of the MOSFETs 12A to 12C being in an off state, the control unit 14 performs control so that a MOSFET 12A to 12C having no abnormality becomes in an on state.