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
TDA1521
频集成功率放大器组成平
桥式功率驱动电路,
计算
口经过锁存器构成脉冲分配器。