中文说明：电路描述： 直流电机是美联储通过直流电源通过斩波器组成的 GTO 晶闸管和自由流二极管 D1。电机驱动器机械负荷惯性 J、 磨擦系数 B，和负载转矩热释光特征
English Description：
Circuit Description: The DC motor is fed by the DC source through a chopper which consists of GTO thyristor and free-wheeling diode D1. The motor drives a mechanical load characterized by inertia J, friction coeficient B, and load torque TL