This paper designed a kind of stepping motor driving circuit. Because this circuit make front and back edge of current signal on machine winding more precipitous, it can debase switch ullage, improve frequency characteristic of motor, and has kinds of protect functions. 设计一种步进电机驱动电路,使加到电机绕组上的电流信号前后沿较陡,降低了开关损耗,改善了电机的高频特性,同时具有多种保护功能。
Experimental results show that the dual-redundancy motor system based on one piece of DSP has simple circuit, real-time and rapid response, the switch among the three work modes is convenient at the same time, and the system has good control performance and dynamic characteristic. 实验结果表明,由一片DSP构成的控制器控制双余度电动机系统,硬件电路结构简单,同时系统实时性好,响应快,3种工作模式之间切换方便,具有良好的控制性能及动态特性。
The points for attention about security in the design and installation of the main high voltage parts including the battery box, the motor, the circuit conductor and the high voltage switch are also expounded in this paper. 阐述了包括电池箱、电机、线路导体、高压开关等在内的电动车主要高压零部件的设计安装在安全方面的注意事项。
Damage of motor in electrical equipment is the major factor that affects the production efficiency of mining enterprises. So that this protection circuit is necessary to the combination switch. 电气设备中的电机损坏是影响矿企生产效率的主要因素,为此组合开关的保护电路是必不可少的。