Patent ID: 7859201

Claim:
A charge control apparatus for charging an electric storage, comprising: a star-connected first poly-phase winding; a star-connected second poly-phase winding; a power input unit connected to a first neutral point of said first poly-phase winding and a second neutral point of said second poly-phase winding, and applying an AC power from an external power source to said first and second neutral points; a power converting apparatus converting to a DC power, the AC power from said external power source applied to said first and second neutral points and outputting said DC power to a DC power line; a converter lowering a voltage from said DC power line to charge said electric storage, while controlling the voltage of said DC power line to be not lower than a voltage of said electric storage, in accordance with an applied command; and converter control means for setting a control target of the voltage of said DC power line based on a voltage level of said external power source, and outputting said command for controlling the voltage of said DC power line to said control target, to said converter.