| 摘要 |
<P>PROBLEM TO BE SOLVED: To enhance power conversion efficiency regarding a composite resonant converter which is equipped with a current-resonant converter on a primary side. <P>SOLUTION: As the composite resonant converter on the primary side a partial voltage resonance circuit is combined with the current resonant converter, and for the secondary side a secondary partial voltage resonance circuit is constituted. Then, as regards an insulated converter transformer which transmits power from the primary side to the secondary side, a primary winding and a secondary winding are wound in specified winding widths using a U-U- shaped core, and also it is arranged so that the primary side and the secondary side may be closely coupled without forming a gap in the magnetic foot of the core. <P>COPYRIGHT: (C)2004,JPO |
