POWER SUPPLY CONTROL APPARATUS

摘要

PROBLEM TO BE SOLVED: To decrease a difference of a load between control parts in a power supply control apparatus which controls a battery charger and a step-down DC/DC converter by the separate control parts.SOLUTION: A power supply control apparatus 1 comprises: a battery charger 2 which converts an AC voltage supplied from an AC power source 21 into a DC voltage for charging a high voltage battery 22; a step-down DC/DC converter 3 which converts the DC voltage outputted from the battery charger 2 into a DC voltage for driving an auxiliary machine 25; a sub control part 4 which controls the battery charger 2; a main control part 5 which controls the DC/DC converter 3; and an external communication part 6 for receiving power supply information of the AC voltage that is transmitted from a normal charging device 20 and power information of the high voltage battery 22 that is transmitted from a vehicle-side ECU 26. Based on the power supply information of the AC voltage and the power information of the high voltage battery 22 received by the external communication part 6, the main control part 5 sets and a charging current command value and transmits it to the sub control part 4 and based on that charging current command value, the sub control part 4 controls the battery charger 2.SELECTED DRAWING: Figure 2