一种可以预设定输出电流的开关电源设计

目前,绝大多数开关电源的共性通常是具有恒压输出功能,也就是人们常说的稳压电源．然而,对一些大功率的设备,不但要求有稳定的输出电压,还要求有稳定的输出电流．同时这个稳定的输出电流值还要求能预先设定．这一种可以预设定输出电流的开关电源,在现有开关电源的基础上增加了单片机闭环控制系统,使得它可以应用在一些既需要稳定的输出电压,又需要稳定的输出电流的系统上．解决目前大部分开关电源因负载变化,造成开关电源停止工作,影响用电设备正常工作的问题．

Design of A Switch with Output Power Presettable

Today, most switches are in common with constant output voltage. However, some equipments with big power require not only a constant output voltage, but also presettable constant output current This paper introduces the design of a switch-need with output power presetted, which can be applied in the equipments with a simple, reliable and practical system requiring constant output voltage and current.