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.
双回
的步进电控制电路由TDA1521音频集成功率放大器组成平
桥式功率驱动电路，由计算并行口经过锁存器成
配器。
类均由互联网资源自动生成，部
