| 摘要 |
<p>A multi-edge synchronous switching power supply which includes a switch-converting unit, a DC output unit and a multi-edge synchronous controller. The multi-edge synchronous controller includes an AC polarity detection unit, an overload detection unit, a power factor detection unit, a DC output feedback detection unit, a multi-edge synchronous timing generator unit and an AC polarity synchronous switch and drive signal synthesizing and mapping unit. Accordingly, the number of the circuit elements is reduced, the switching power supply circuit and the control circuit are simplified, and the activity and the reliability of the power converting of the switching power supply are improved.</p> |
