| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem wherein the use of a snubber inductor Ls adversely lowers power conversion efficiency on some output voltage (voltage of an output side capacitor Co) of a converter CNV. <P>SOLUTION: A loop path including a diode Dc (Da), a secondary coil W2, a diode Db (Dd) and a snubber diode Ds2 is a discharge path for a snubber capacitor Cs. The discharge path can be connected with the snubber inductor Ls via a selector SL. A switching process is performed such that, when the output voltage is low, the selector SL is operated to include the snubber inductor Ls in the discharge path, and when the output voltage is high, on the other hand, the selector SL is operated to exclude the snubber inductor Ls from the discharge path. <P>COPYRIGHT: (C)2013,JPO&INPIT |
