多路隔离升降压输出的反激电源设计  

Design of Flyback Power Supply with Multi-Channel Isolated Boost-Buck Output

作　　者：王灏 WANG Hao(Xuchang Electrical Vocational College,Xuchang 461000,China)

机构地区：[1]许昌电气职业学院,河南许昌461000

出　　处：《许昌学院学报》2024年第5期149-153,共5页Journal of Xuchang University

摘　　要：随着能量路由器终端设备的发展与应用,需要辅助电源具有升降压和多路隔离输出功能,结合反激拓扑结构的优势,提出了一种多路隔离升降压输出的反激电源.首先,给出了基于准谐振技术的多路隔离升降压输出的反激拓扑结构,阐述了所提变换器的工作原理.其次,阐述了控制电路实现准谐振的方法,给出了升降压高频变压器的设计步骤.最后,研制了实验样机,实验验证了理论分析的正确性和可行性,满足了实际应用的需求.With the development and application of energy router terminal equipment,the auxiliary power supply is required to have boost-buck and multi-channel isolated output functions.Combining the advantages of the flyback topology,a flyback power supply with multi-channel isolated boost-buck output is proposed.Firstly,a flyback topology based on quasi-resonant technology for multi-channel isolated boost-buck output is presented,and the working principle of the proposed converter is explained.Then,the method of realizing quasi-resonance in the control circuit is elaborated,and the design steps of the boost-buck high-frequency transformer are provided.Finally,an experimental prototype is developed,and experiments are conducted to verify the correctness and feasibility of the theoretical analysis,meeting the requirements of practical applications.

关 键 词：升降压输出 多路隔离 准谐振反激 钳位电路 吸收电路 

分 类 号：TM91[电气工程—电力电子与电力传动]