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概况随着数字控制和计算机在工业、商业、医学方面和军事控制系统中越来越多的应用,有些控制对象必须把计算机输出的数字量转换成电压量或电流量,此量可以控制模拟控制元件,由控制元件去控制对象或实物,并由它产生速度、压力、流量、改变方向(如飞机、导弹等就有此项要求)和改变距离等。数/模即D/A变换器就是解决计算机在各方面应用中所要解决的重要接口电路之一。本文对初步研制成功的D/A变换器作简单的叙述与分析。
At a Glance With the increasing use of digital control and computers in industrial, commercial, medical, and military control systems, some controllers must convert the digital output from a computer into a voltage or current that controls the analog control element , By the control element to control the object or in kind, and it produces speed, pressure, flow, change direction (such as aircraft, missiles, etc. have this requirement) and change the distance. D / A converter is to solve the computer in all aspects of the application to be solved one of the important interface circuit. This article briefly describes and analyzes the initially developed D / A converter.