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
王灏1
作者信息
- 1. 许昌电气职业学院,河南 许昌 461000
- 折叠
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.
Abstract
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 provid-ed.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Key words
boost-buck output/multiple-channel isolated/quasi-resonant flyback/clamp circuit/absorp-tion circuit引用本文复制引用
出版年
2024
NETL
NSTL
万方数据