基于 UC3842 的多输出开关电源设计
刘 俊 1 楚 君 2 郭照南 1 王 玲 3
(1.湖南工程学院 电气与信息工程系 湖南 湘潭 411101
2.湘潭大学 信息工程学院 湖南 湘潭 411105
3.湖南大学 电气与信息工程学院 湖南 长沙 410082 )
摘要:本文阐述了一种基于 UC3842 PWM 控制器的新型多路输出反激式开关电源电路的设
计。该设计详细给出了变压器、漏感消除电路、启动电路以及电压电流反馈电路的设计过程。
实验结果表明该电源性能优良。作为电机控制的电源模块,具有很高的应用价值。
关键词:电流型 PWM;UC3842;反激式开关电源
中图分类号:TN492
文献标志码:B
Design of Multi-output Switching Power Supply based on UC3842
LIU Jun1, CHU Jun2, GUO Zhao-nan1, WANG Ling3
(1.Hunan Institute of Engineering Department of Electrical
and Information Engineering,Xiangtan,411101,china
2. College of Information Engineering, Xiangtan University,
Xiangtan,411105,China
3. College of Electric and Information Engineering,
HunanUniversity,Changsha,410082,China)
Abstract:The design of a new multi-output switching power supply based on UC3842 is proposed
in this paper. The design of transformer, leakage inductance elimination circuit, start circuit and
voltage and current feedback circuit is introduced in detail. Experiment results show that the
power supply has good performance.It can be used for motor control as a power module and has
better application value.
Key words: current PWM; UC3842; flyback switch power
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