部分真值表在环形分配器设计中的应用

目前步进电机以五相居多，硬件环形分配器用卡罗图来进行设计，则显得复杂冗赘，如果从步进电机运行的规律中找出约束条件，建立部分真值表，便可以直接写出控制逻辑函数，这对于设计相数、拍数较多的步进电机的环形分配器极为方便，这种设计思路在进行数字电路工程设计中也是可以值得借鉴的。

Appliction of Local Truth Table in Ring Distributor Design

At present, more often than not,five phase stepping motors are used.in which ring distributor is designed with Carol Graph, and it is rather complicated . If restrictions are inspected with the operating rules of stepping motors, and then a local truth table is set up, we can easily work out the control logic function, which makes it much simpler to design the ring distributor in many phase stepping motors,and there is much in this idea that can be made use of for digital circuit engineering design as well.