基于双压驱动的恒流斩波系统的设计

恒流斩波电路中，步进电机的驱动电压高，绕组回路阻抗低，电流上升较快。单一的恒流驱动电路在低频时绕组电流上升过快，容易导致低频过冲振荡现象。为避免振荡，本文采用双压驱动与恒流斩波驱动相结合：低速运行时采用低电压供电，低频过冲振荡小，转动平稳；高速运行时采用高电压供电，高频输出扭矩大，不易堵转。

Design of Constant Current Cut Wave System Based on Double Power Driving

In the driving circuit of permanent flow and cut waves technology, the current raise very quick for the impedance is low in the loop, which lead to obvious rush and shock on the rotor. A new driving technology is introduead in this paper to avoid the rush and shock, which combine double power driving and constant eur~nt cut wave driving. Low voltage is supplied in the low frequency, with a weak rush and smooth rotation; high voltage is supplied in the high frequency, with a high output torsion and a free rotation.