摘要
Abstract
The whole current source system consists of STC89C51 core controller, constant -current source,D/A converter, A/D converter (data acquisition), keyboard, display, main current source, accessory power supply and so on. Using keyboard to receive controlling information by user inputed,single - chip analyzes user command, then sends all kinds of controlling information, accomplishes control function. To measure the output current of the load instantaneously,using A/D converter to achieve the data acquisition, the single -chip receive the data, processes the data, and outlets to the LED to display,achieves the display of the load current.关键词
STC89C51/恒流源/A/D转换/D/A转换Key words
STC89C51/ constant flow source/ A/D converter/ D/A converter分类
信息技术与安全科学
