| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a power supply unit capable of improving general versatility by suppressing variance in the output currents of power inverter circuits in a plurality of systems with a simple configuration. <P>SOLUTION: The direct current converted by power rectifier circuit is converted into AC power of high frequency by the power inverter circuit 220 of four-system bridge type. Pairs of arms U1 to U4, V1 to V4 which are led out of respective switching circuits 223A to 223D of the power inverter circuit 220 and pass output currents are respectively inserted into an annular core formed out of a magnetic material, and are parallel connected to a long conductor member 320 having a composite current output terminal 330 on its one end. Gaps between the arms U1 and V1, U2 and V2 and U3 and V3 are widely connected respectively with the same inductance as differences in inductance at the connected positions of the arms U4, V4 distant from the composite current output terminal 330. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
