| 摘要 |
PURPOSE:To allow to be operated for both AC/DC and DC/DC converters. CONSTITUTION:An insulation transformer T has an AC side input winding Na, a DC side input winding Nd, an output winding Nc and an auxiliary winding Nb. An AC power source Va supplies to the winding Na through a rectifying and smoothing circuit 13 and a first switching circuit 11, a DC power source Vd supplies to the winding Nd through a smoothing circuit 16, and a rectifying and smoothing circuit 15 is connected to the winding Nc. The circuit 11 and a second switching circuit 12 are operated as an AC/DC converter and a DC/DC converter by using the transformer T commonly. |
