双路输出的反激式变换器拓扑及特性研究  

Research on Topology and Characteristics of Dual Output Flyback Converter

作　　者：秦志强 张波[1] 严宗周 QIN Zhi-qiang;ZHANG Bo;YAN Zong-zhou(South China University of Technology,Guangzhou 510640,China;不详)

机构地区：[1]华南理工大学,电力学院,广东广州510640 [2]深圳讴艾半导体有限公司,广东深圳518000

出　　处：《电力电子技术》2024年第10期93-96,共4页Power Electronics

基　　金：国家自然科学基金智能电网联合基金项目(U2166601)。

摘　　要：此处提出了一种双路输出的反激式变换器拓扑,该拓扑只需要一个输出绕组就可以实现双路输出,相比传统的通过多个绕组实现多路输出的方式,节省了绕组数量,节约了重量、体积和成本,同时还能实现初级开关管的零电压开关(ZVS),降低开关损耗。此处首先对所提变换器拓扑实现双路输出和初级开关管ZVS的过程进行模态分析和必要的数学推导,然后对关键参数进行设计,并且对变换器拓扑进行特性分析。最后在Matlab的Simulink中进行仿真验证,并设计制作了一台15 W的样机,验证了所提拓扑的可行性。A dual output flyback converter topology is proposed,which only requires one output winding to achieve dual output.Compared with the traditional method of achieving multiple outputs through multiple windings,this topolo-gy saves the number of windings,weight,volume and cost.At the same time,it can also achieve zero voltage switching(ZVS)of the primary side switching transistor,reducing switching losses.Firstly,modal analysis and necessary mathe-matical derivation are carried out on the process of implementing dual output and ZVS of the primary side switching transistor in the proposed converter topology.Then,characteristic analysis is carried out on the converter topology,and key parameters are designed.Finally,the simulation verification is conducted in Simulink of Matlab,and a 15 W proto-type is designed and manufactured to verify the feasibility of the proposed topology.

关 键 词：变换器 双路输出 零电压开关 

分 类 号：TM46[电气工程—电器]