本文试图利用电压负反馈和电流正反馈组成无测速机的直流调速系统。

Simulated Speed Signals Used in Speed Control System for DC Motors Huang Shuqing Zhang NanlunThis paper proposes some simulated speed signals including negative voltage feedback signal and positive current feedback signal.The simulated speed signals could be used in speed control system for DC motors without tachometer generator.