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.
双回转构的步进电
控制电路由TDA1521
成功率放大器组成平
桥式功率驱动电路,由
并行口经过锁存器构成脉冲分配器。