摘要
本文利用PWM芯片TL494,来控制开关电源管IRFP460的导通和截止,利用单片机为控制核心的开关稳压电源,可以输出可调电压在30V-36V之间,最大输出电流为2A;通过键盘能对输出电压进行键盘设定和一伏的步进调整,并通过液晶显示器件显示电流和电压值,同时开关稳压电源具有过流与过压保护功能。
A type stable switch power supply is designed with PWM ship TL494 to control switch power IRFP460 opening and closing.And the single ship microprocessor is adopted as controller core to regulate vottage of switch power from 30v to 36v o Output maximal electric current value is 2 ampere o Regulate voltage of switch power may used keyboard to set voltage and step regulate with displaying voltage and current value through LCD o The switch power supply has protection circuit of current and voltage .
出处
《电子质量》
2007年第12期28-30,共3页
Electronics Quality
