| 摘要 |
The invention comprises a circuit arrangement with a first direct voltage (4a) to an alternating voltage transforming unit (6), a said alternating voltage to a second direct voltage (8a) transforming unit (8), and a said second direct voltage (8a) smoothing filter (9), connectable to a load (10, 12), whereby said first direct voltage (4a) to an alternating voltage transforming unit (6) presents an inductance (L1) whose one connection (L1a) is connected to a connecting point (Va) which is mutual for two series connected rectifying means (V1, V2), and where said alternating voltage to a second direct voltage (8a) transforming unit (8) comprises parallel related rectifying means (V3, V4). A back current through one of two parallel related rectifying means (V3, V4), formed at the switching period of the alternating voltage, and a therefrom originating power contribution to said inductance (L1), is redistributed by a power contribution redistributing organ (A), belonging to said transforming unit (6), in order to reduce the losses appearing, for instance, in said series connected rectifying means (V1, V2).
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