| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To miniaturize the device size for a vehicle mounted power supply device having an external charging function. <P>SOLUTION: A switching three-phase multiphase converter 12 operates in either a boost mode for boosting the output voltage of a battery 14 or an external charging mode for charging the battery 14 on the basis of power obtained from an external power supply device. In the boost mode, a controller 28 turns on relay switches RS1 to RS4. Then, the next control is performed so that a voltage, which is the output voltage of the battery 14 that has been boosted, is output as the output voltage of the switching three-phase multiphase converter 12 to a drive circuit 20. In the external charging mode, the controller 28 controls the relay switches RS1 to RS4 to turn off. From a single-phase power supply plug 26, a single-phase alternating current voltage is obtained, and switching devices S1 to S6 are controlled so that the battery 14 can be charged. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
