对JW—3型直流稳压稳流电源的改进

AN IMPROVEMENT ON JW—3 DC ST ABLE VOLTAGE AND CURRENT ELECTRIC RESOURCE

本文对当前广泛应用的JW—3型低压直流稳压稳流电源的电路原理进行分析后,简便而经济地解决了该仪器工作在稳流状态时产生上冲或下垂的问题。使该仪器性能得到改善;稳流范围大大扩展;调节操作十分方便;在实验教学、生产、科研中都具有很重要的实用价值。

In this paper the author analyses the circuit principle of an electric resource that is widely used. Its type is JW—3 dc stable voltage and current. By doing so, we can easily and economically solve the problem of rushing up and falling down while this instrument is working in a condition of stable current. After solving this problem, the funtion of this instrument has been improved a lot, the stable current range has been enlarged a great deal, and the adjustment and operation have become much more convenient. It has very important practical value in experments, production and scientific researches.