| 摘要 |
<p>An integrated switching power supply and its operation method are disclosed , in which the switching power supply comprises an AC rectification and input unit (301) ; a DC output and rectification unit (303) and a changeover switching unit (302). The said changeover switching unit comprises an energy storage inductor, a transduction transformer, a capacitor, a first undirectional electronic means, a second undirectional electronic means, a first controllable switching device, and a second controllable switching device.</p> |
