To control stepping motors, the balance bridge power drive circuit is made up by TDA1521 integrated audio power amplifier, the pulse allotter is made up by the parallel ports of computer and latches.
机构的步进电机控制电路由TDA1521音频集成功率放大
组成平
桥式功率驱动电路，由计算机并行口经过锁存构成脉冲
。
类均由互联网资源自动生成，部
