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本文论述在微机多路分时控制系统中,如何用单个D/A变换器,对多路的执行机构实现有效地驱动。讨论采用这一技术时,电路系统的响应时间,所需占用的CPU工作时间与控制路数及电路参数的关系,最后给出电路的设计步骤及程序流程。
This article discusses how to use a single D / A converter to effectively drive multiple actuators in a microcomputer multi-channel time-sharing control system. Discusses the use of this technology, the response time of the circuit system, the CPU time required for the work and the control of the road and the relationship between circuit parameters, and finally gives the circuit design steps and procedures.