中圖分類號(hào)： TN86
文獻(xiàn)標(biāo)識(shí)碼： A
DOI：10.16157/j.issn.0258-7998.200247
中文引用格式： 崔俊國. 一種高效無感AC/DC開關(guān)電源拓?fù)浣Y(jié)構(gòu)[J].電子技術(shù)應(yīng)用，2020，46(9)：114-117.
英文引用格式： Cui Junguo. A high efficiency AC/DC switching mode power supply topology without inductor[J]. Application of Electronic Technique，2020，46(9)：114-117.

A high efficiency AC/DC switching mode power supply topology without inductor

Abstract： This paper presents a high efficiency AC/DC switching power supply topology without inductor. Through the control of the final discharging voltage(discharge time) of the energy-storage capacitor, the initial charging voltage of the capacitor is controlled. So the output load can get the constant voltage or constant current. In the charging and discharging process of the energy-storage capacitor, the AC input energy is directly transmitted to the load terminal through the energy-storage capacitor. At the same time, the energy stored in the energy-storage capacitor is fully transferred to the load terminal. So this topology transition efficiency is high. In the charging and discharging process of the energy-storage capacitor, the rate of the AC input voltage determines the instantaneous value of the charging and discharging current of the energy-storage capacitor, and then determines the instantaneous value of the input current.

Key words : high efficiency；switching mode power supply；non-inductor