介绍了一种在单片机的控制下能实现对放大倍数进行自动调整，且输出结果在选定的范围之内变化的串行程控放大器。
It can automatically change its amplification with the control of a single chip computer so that the output can vary within proper limits.
针对磁放大器式电源埋弧自动焊机设计了单片机控制系统。
A control system based on single chip microprocessor is designed for submerged arc welder with magnetrol power source.
提出一种自动量程切换电压测量系统的设计方法，该系统基于程控增益放大器器件，使用单片机控制其增益实现量程的自动切换。
It presents a system of voltage measurement with self-scale, based on the program control amplifier controlled by the single chip computer.
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