基于PSR的反激式开关电源的设计  

Design of Flyback Switching Mode Power Supply Based on PSR

作　　者：赵文群[1] 李翠华 丁涛[1] ZHAO Wen-qun LI Cui-hua DING Tao(College of Automation and Electrical Engineering, Qingdao University, Qingdao 266071, China)

机构地区：[1]青岛大学自动化与电气工程学院,山东青岛266071

出　　处：《通信电源技术》2017年第4期119-120,共2页Telecom Power Technology

摘　　要：文中通过对原边反馈技术(PSR)原理的介绍,以及其优缺点的讨论,设计了一款基于UCC28710D的原边反馈反激式开关电源。此电源输入电压范围为85~265 V,具有成本低、体积小的优点。电源电路可实现在无需使用光耦合器的情况下提供恒定电压和恒定电流输出调节,确保反馈精度,减小反馈误差。In this paper,the principle of the original side feedback technique（PSR）is introduced,and the advantages and disadvantages are discussed.A flyback switching mode power supply based on UCC28710 D is designed.The power input voltage is at range of 85~265 V,with low cost and small size.The power circuit can be realized without the use of optical coupler under the condition of constant voltage regulation and constant current regulation.It can ensure accuracy and reduce the feedback error.

关 键 词：原边反馈技术 反激式电源 UCC28710D PSR-CC PSR-CV 

分 类 号：TN86[电子电信—信息与通信工程]