一类直流调速系统的特色

The Characteristics of a DC Motor Speed Governing Devices

笔者与太仓某厂联合测绘并研制了英国Ｓｉｍｐｌａｔｒｏｎ公司生产的４７、４８、４９系列集成直流调速系统的相应产品，本文对典型电路──速度调节器，移相触发电路，检测和保护电路作了详细分析，以供国内有关工程技术人员参考。

This paper analyses the characteristic circuits of 47, 48, 49 series DC motor speed governing devices made by Simplatron Co., England, and also presents author's experience of making modelled products after such a series.