| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a power supply system for a vehicle capable of preventing breakage in a fusible link. <P>SOLUTION: This power system comprises a power supply unit constituted by parallel-connecting at least a constant-current control type DC-DC converter 2 having a constant-current characteristic and a constant-voltage control type DC-DC converter 1 having a constant-voltage characteristic, and an accessory battery 6 which is charged and supplies electric power to a load. The power supply unit and the accessory battery 6 are connected to each other through the fusible links 3 to 5. For the starting operation, a control unit 10 is also provided for starting, first, the constant-current control type DC-DC converter 2 and secondly, starting the constant-voltage control type DC-DC converter 1. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
