一种光电编码器用可编程计数电路的设计

设计了光电编码器用可编程计数电路，它主要由方向判别电路，双脉冲加减计数电路，输出缓冲电路，预置锁存电路，译码控制电路，F／V转换电路等组成，能输出光电编码器位置的16位数字量，旋转速度模拟量和旋转方向指示电平，具有目标位置设定，当前状态指示等功能，易于与微机的I／O数据采集卡相连接而实现可编程控制，实际应用结果表明，该可编程计数电路抗干扰能力强、工作稳定可靠，控制方便，具有很高的实用价值。

Design of a programmable count circuit for photoelectric encoder

A programmable count circuit for photoelectric encoder is designed.It consists of direction distinguishing circuit,up/down counting circuit,output buffer circuit,input latch circuit,decode and control circuit,F/V converting circuit.It provides outputs of 16 bits data, analog rotation speed signal and rotation direction signal of encoder. And it can give state of current position from the aimed position of encoder. It can be programmed through I/O data board easily. It is confirmed with experimental results that it works stably with high interference immunity, and it is also shown that it is very useful.