According to jacquard machine's hooks 'array, author selected photoelectric switch as sensors, adopted the way of "latch-parallel to serial-serial shift output" to collect 2688 sensor's signals quickly. 针对电子提花龙头提针的排列,选择了光电开关作为传感器;并采用了锁存-并转串-串行移位输出的方式短时间快速收集2688个传感器的信号。
On the basis of "input to buffer, output to latch", The outer design can be isolated from BUS by means of using different isolator and using three states latching at the input port and data latching at the output port. 以输入缓冲,输出锁存为基本思路,采用不同的总线隔离器将外设与总线隔离,输入口用三态缓冲器,输出口用数据锁存器。
This device is parasitic latch up free, and exhibits the characteristic of output current decrease, instead of current saturation or increase at higher anode voltage. 这种器件无寄生闩锁效应,并在较高阳极电压下展现出电流下降而不是饱和或上升的特性。