| 摘要 |
A single-pole switch power source comprises: a double source rectifier unit (501), for converting an alternating current input by an alternating current power source into at least two direct current sources, namely, a first direct current source (606) and a second direct current source (607); a combination switch unit, at least comprising a first switch circuit (603) and a second switch circuit (605), used for respectively performing power conversion on the first direct current source (606) and the second direct current source (607), to output a direct current, wherein the first direct current source (606) is connected to the first switch circuit (603) through an energy-storage capacitor (604), the first switch circuit (603) is any circuit capable of functioning as a switch circuit, and the second switch circuit (605) is a circuit capable of functioning as a flyback switch circuit. The single-pole switch power source has complete power factor correction and output hold-up time, and further improves power source conversion efficiency. |
