一种双环控制多输出电源的设计与应用

Design and Application of A Double Loop Controlled Multi-output Switching Power Supply

本文阐述了一种新型多路输出的单端反激式开关电源电路的设计及应用。该设计以UC3844PWM控制器为核心,采用了电流反馈和电压反馈双环控制电路。文中详细给出了电压电流反馈电路、漏感消除电路、启动电路以及变压器的设计过程。实验及应用结果表明该电源性能优良,具有稳压效果好,纹波小,负载调整率高等优点。作为电机控制的电源模块,具有很高的应用价值。

The design and application of a new multi-output single flyback switching power supply is proposed in this paper.This design adopts current and voltage feedback and double loop controlled circuits with it s core of UC3844 PWM controller.In this paper,the design of voltage and current feedback circuit,leakage inductance elimination circuit,start circuit and transformer is introduced in detail.Experiment and application results show that the power supply has good performance such as high voltage stability,low...