| 摘要 |
A voltage spike processing circuit for use in a switched-mode power supply, comprising a clamping module (101), an absorption module (102), and an energy conversion module (103); the clamping module (101) is connected to a voltage spike generating module (201) of the switched-mode power supply (200), the absorption module (102) is connected between the voltage spike generating module (201) and the clamping module (101), and is in communication with the energy conversion module (103), and the energy conversion module (103) is connected to the clamping module (101) and an output end of the switched-mode power supply (200). By setting the energy conversion module (103) in the voltage spike processing circuit, the energy conversion module (103) periodically transmits the voltage spike energy to the output end of the switched-mode power supply (200) by means of a switch unit formed of an electronic switch tube, a filtering unit formed of an inductor, and a continuous flow unit formed of a diode, thereby decreasing the voltage spike in the switched-mode power supply (200), reducing the energy loss in the switched-mode power supply (200), and improving the overall conversion efficiency of the switched-mode power supply (200). |
