Technical Analysis of ZVS Flyback Switching Power Supply Based on Synchronous Rectification Controller
The traditional ZVS flyback switching power supply can further reduce switching losses compared to quasi-resonant power supplies,but complex circuits and components costs increasing are its disadvantages.The control strategy proposed in this paper to achieve ZVS based on the synchronous rectification controller,which can achieve zero voltage turn-on without relying on additional auxiliary switcher and auxiliary winding.So it has good application prospects.After the introduction of its working principle and simulation results,then making a analysis about the working process at each stage.Finally,the actual system model test proved this method can significantly reduce the loss of the switching components,achieve higher convertor efficiency,and possess cost advantages.
ZVSflyback switching power supplysynchronous rectificationactive clamping
万方数据
维普
