| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an inexpensive power supply unit for vehicle capable of minimizing the output power capacity of a voltage converter. SOLUTION: This power supply unit includes a motor generator 10 which generates power, a high-voltage battery 12 which is charged by power outputted from the motor generator 10 and supplies the charged power to a high-voltage load, a DC-DC converter 21 which converts the output voltage of the high- voltage battery 12 to another voltage, and a plurality of low-voltage batteries 13a and 13b which are charged by power outputted from the DC-DC converter 21 and are connected in parallel so as to supply the charged power to a low- voltage load 15.</p> |
