Patent ID: 8054025

Claim:
A charge control device to charge an electricity storage device (B), comprising: a first polyphase winding ( 12 ) that is star-connected, a second polyphase winding ( 14 ) that is star-connected, first and second inverters ( 20 , 30 ) connected to said first and second polyphase windings ( 12 , 14 ), respectively, and including an anti-parallel diode (D 11 -D 16 , D 21 -D 26 ) connected in parallel with each switching element (Q 11 -Q 16 , Q 21 -Q 26 ), a converter ( 10 ) arranged between each of said first and second inverters ( 20 , 30 ) and said electricity storage device (B), and a boosting device ( 86 ) arranged between each of a first neutral point (N 1 ) of said first polyphase winding ( 12 ) and a second neutral point (N 2 ) of said second polyphase winding ( 14 ) and a power supply, boosting voltage supplied from said power supply to a voltage level higher than the voltage of said electricity storage device (B) to provide the boosted voltage to said first and second neutral points (N 1 , N 2 ), wherein said first and second inverters ( 20 , 30 ) output the voltage boosted and applied to said first and second neutral points (N 1 , N 2 ) by said boosting device ( 86 ) to said converter ( 10 ) via said anti-parallel diode (D 11 -D 16 , D 21 -D 26 ), said converter ( 10 ) receives voltage output from said first and second inverters ( 20 , 30 ) to charge said electricity storage device (B).