准谐振反激变换器的设计与仿真

Design and Simulation of Quasi Resonant Flyback Converter

反激变换器由于输入和输出端电气隔离,同时具有效率高和体积小等诸多优点,应用十分广泛。而准谐振反激变换器可以进一步提高开关电源的效率,因而具有更好的应用前景。在介绍准谐振反激变换器原理的基础上,设计了一种零电压开关控制的准谐振反激变换器,并使用Saber软件对电路进行仿真,验证了设计的可行性。

Flyback converter is widely used because of its electrical isolation between input and output,high efficiency and small volume.The quasi resonant flyback converter can further improve the efficiency of switching power supply,so it has a better application prospect.Based on the introduction of the principle of quasi resonant flyback converter.A quasi resonant flyback converter controlled by zero voltage switching is designed in this paper,and the circuit is simulated with saber software to verify the feasibility of the design.