数控直流电流源设计

The Design of Digital Control DC Power Supply

本设计基于电流与电压自动跟踪技术,以STC89C52系列单片机作为主控部件, 采用A/D转换器和D/A转换器来实现输出电流的测量与预置,并将单片机与A/D 转换器、D/A转换器等构成人工智能闭环控制系统,对测量值与给定值进行比较, 人工智能修正,进而使数控直流电流源能够输出0mA～2000mA的恒定电流。

This design is based on automatic following technology of current and voltage and takes the STC89C52 single chip micro computer as the main controlling part to realize the measurement and presetting of current output value by A/D converter and D/A converter. It can make single chip micro computer and A/D converter, D/A converter constitute an artificial intelligence closed circle system. It can also compare measured value with given value. and make artificial intelligence modifications. In this design, the digital control DC power supply output constant current value ranging from 0 mA to 2000 mA。