POWER SUPPLY FOR A VEHICLE AND A VEHICLE WITH THE SAME

摘要

PURPOSE: A power supply for a vehicle and a vehicle with the same are provided to transmit the voltage signal of a battery to the vehicle by insulating a driving battery from a chassis ground. CONSTITUTION: A driving battery(1) supplies electric power to a motor for a vehicle. A first measurement circuit(2) detects the voltage of a battery(10) of the driving battery. A second measurement circuit(3) detects the overcharge or overdischarge of the battery. A high voltage power circuit(4) supplies the electric power of the driving battery to the first measurement circuit and the second measurement circuit. An insulating circuit(5) insulates the output of the first and the second measurement circuit to the vehicle. A low voltage power circuit(6) supplies the electric power of the battery(7) to the insulating circuit. [Reference numerals] (13) Vehicle side ECU; (2) First measurement circuit; (3) Second measurement circuit; (4) High voltage power circuit; (5) Insulating circuit; (5A) First insulating circuit; (5B) Second insulating circuit; (6) Low voltage power circuit; (6A) First low voltage power circuit; (6B) Second low voltage power circuit; (7) Battery; (9) Chassis ground; (AA) Power source device side; (BB) Vehicle side;