| 摘要 |
PURPOSE: A power supply apparatus for rectification is provided to supply a constant direct current from an output of a rectifier by providing two or more output voltages with high power factor. CONSTITUTION: A current supply device(A,B) rectifies a three-phase current into a multi-pulse DC current. The current supply device includes one or more three-phase AC current transformers with a transformer core or three single-phase AC current transformers respectively including a transformer core. The three phase AC current transformer includes three first secondary-side coils(L21, L22, L23). The coil is arranged on a corresponding leg of the transformer core. First converter valves(D1, D2, D3) are connected to the first secondary-side coils(L21, L22, L23). |
