| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a switching power supply and a wind power generator which can deal with a voltage of large fluctuation range being output from a power generating source. <P>SOLUTION: A switching power supply 1A comprises a transformer 24, a rectifying and smoothing circuit 25 which rectifies and smooths a voltage waveform generated in the transformer 24, a series inductor 23 including a plurality of inductors each having one end connected with the position of the transformer 24 of different winding ratio, a three-phase rectification diode 21 which converts the AC input voltage into a DC input voltage, a sequential control bridge converter 22 connected in parallel with the DC input voltage and including a plurality of converters connected, respectively, with the other end of the plurality of inductors, an input voltage detection unit 31 which outputs a control signal corresponding to the effective value of the AC input voltage, and a gate sequential control unit 32 which controls the plurality of converters so as to perform switching operation in response to the control signal output from the input voltage detection unit 31. <P>COPYRIGHT: (C)2013,JPO&INPIT |
