All-digital Dc Speed Control System For Control

In this paper , deep research on DC timing system based on microcomputer control is canied out Beginning with the theory of the DC timing system , this article has built up the maths model of the DC timing system and by contrasting it with the low exponent typical system it presents the parameters of the current /velocity controller then in the aspect of microcomputer control , it has discussed the principle of number touch offnumber velocity testings current /velocity controller and presents the hardware / software scheme to achieve it This scheme is based on the core of 8031 singlechip , using two chips of 8255/8253 ~ one chip of 2764/6264/A0574 and some peripheral circuits By real time testing and adjusting the motor' s velocity /current ,this timing system can get quick ~id exact timing result.