| 摘要 |
An electric power conversion device 1 includes: a primary circuit 1a having a resonance inductor Lr, a switch unit SU, and a primary winding Tra of a transformer; and a secondary circuit 1b supplying an electric power to primary winding Tra of transformer Tr to supply an energy generated on secondary winding Trb, Trc to a load. Switch unit SU includes: first and second diodes D1, D2 connected in parallel to each other; first and second switching elements S1, S2; and a resonance capacitor Cr. Furthermore, secondary circuit 1b includes an output inductor Lo between secondary windings Trb, Trc and load Vo. This structure achieves reductions of a loss, a size, and a cost and makes possible to suppress a destruction possibility of semiconductor elements and a worsening of a power factor. |
