Patent ID: 8514537
Filing Date: 2013-08-20
Classification: H02M,H02P

Abstract:
1. A power supply controller to be connected to a power supply path for supplying power from a power source to a load, the power supply controller being configured to control power supply from the power source to the load and comprising: a switch circuit to be provided between the power source and the power supply path, the switch circuit being configured to switch the power supply from the power source to the load between on and off; and a power-supply-path protection circuit configured to control switching operation of the switch circuit according to a power-supply command signal that commands to start or terminate the power supply to the load, to calculate a temperature of the power-supply path, and if the calculated temperature reaches a predetermined upper limit, to inhibit the switch circuit from the power supply, thereby protecting the power-supply path, wherein in a case where the power supply by the switch circuit is inhibited, if the temperature of the power supply path decreases to a predetermined threshold temperature, the power-supply-path protection circuit removes inhibition of the power supply by the switch circuit.