一種基于電容的電磁全隔離直流電源傳輸電路

摘要：本文提出一種基于電容的直流電源傳輸電路。利用電容存儲電荷的特性，在單片機的控制下，該電路可以使輸入與輸出之間不存在電磁耦合通路。因此該電路不僅可以提供穩定的輸出電壓，而且可以完全隔離來自輸入端的電磁干擾。 敘詞：電容，電磁隔離，單片機，MOS管，光電耦合器 Abstract：A DC supply circuit based on capacitors is presented in this paper. By utilizing the capacitors’ character of storing charges and under the control of MCU, there is no path allowing electromagnetic coupling. Thus this circuit can not only provide stable output voltage, but also offer complete electromagnetic isolation. Keyword：capacitor, electromagnetic isolation, MCU, MOS, phototube