基于双电流控制模式的开关电源的设计

The Design of Switching Mode Power Supply Based on the Dual-current Control Mode

本文使用双电流控制模式,以智能芯片UC3842为核心,设计了单片开关电源的实用电路。通过实验和应用,验证了该电源对输出电压能够进行连续调节;具有电压调节范围宽,电路简单,输出稳定,可靠性强,人机交互接口优良,应用范围广泛等特点。能满足部分电子类产品对小型、轻量、高效率、可控的电源的需求。

In this paper, by the use of dual-current control mode and intelligent UC3842 chip as the core, a single-chip switching power supply circuit are presented. The experiment and practice prove the power supply output voltage is continuous and adjustable. And it has the features of wide range regulation of voltage ,simple circuit,output stability,reliability,excellent interactive interface ,being widely used and so on.At the same time ,it can meet some electronic products to small,lightweight,highly efficient,controllable power demand.