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巧设串联型晶体管直流稳压电源过载保护新形式 被引量:2

Setting up the Series Transistor DC Regulated Power Supply Overload Protection New Form
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摘要 串联型晶体管直流稳压电源在稳压部分的过载保护分限流型和截流型两种保护电路,这两种过载保护电路都有各自的缺点,并且都是加在稳压部分。在实验课教学中采取了另外一种过载保护电路,即在桥式整流与滤波器之间加一个220欧姆的分流电阻,对电路进行过载保护,采用这种分流式过载保护电路原理简单,使用方便。几年来,使用效果甚佳。 The series transistor DC regulated power supply has two protection circuit of current-limiting and closure in the overload protection of voltage part, these two kinds of overload protection circuit all have their own shortcomings, and are added to the voltage part. Another kind of overload protection circuit is taken in the experimental teaching, a 220 Ω shunt resistance is added between bridge rectifier and filter for overload protection circuit, the principle of this method is simple and easy to use. Recently, we always use this method, the effect is very good.
作者 习大力
出处 《大学物理实验》 2013年第3期18-19,共2页 Physical Experiment of College
关键词 串联型晶体管直流稳压电源 限流型 截流型 过载保护 series transistor DC regulated power supply a current-limiting closure overload protection
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