Patent ID: 6794846
Filing Date: 2004-09-21
Classification: B60L,H02J,H02M,Y02T,Y10S

Abstract:
A power source unit comprising:an inverter connect to a power transfer device; a first battery that can be charged and discharged through the inverter; a second battery that can be charged and discharged through the inverter, the second battery having a power voltage lower than a power voltage of the first battery; a power conversion device that comprises a transformer, a first bridge circuit connected to a primary side of the transformer, and a second bridge circuit connected to a secondary side of the transformer and connected to the inverter, the power conversion device providing a power converting function; and a switching device provided between the first bridge circuit and the first and second batteries, the switching device switching a connection between the power conversion device and the first battery, and the power conversion device and the second battery.