| 摘要 |
PROBLEM TO BE SOLVED: To provide a power conversion device for charging each of a high voltage battery and a low voltage battery.SOLUTION: A power conversion device for charging first and second batteries comprises: an input unit converting a commercial alternating current power supplied from the outside into a direct current (DC) power to output; a first power conversion unit converting the converted DC power into an AC power to output; a second power conversion unit which converts the AC power converted through the first power conversion unit into a DC power to charge the first battery in a first operation mode and converts the DC power outputted through the first battery into an AC power in a second operation mode; a third power conversion unit converting the AC power converted through the second power conversion unit into a DC power to charge the second battery in the second operation mode; and a switching unit which, according to a control signal supplied from the outside, connects the first and second power conversion units to each other in the first operation mode and connects the second and third power conversion units to each other in the second operation mode. |
