摘要
本次设计采用具有A/D转换、锁存和译码功能的集成CMOS芯片ICL7107设计多路多用仪表,可同时测量多路负载的电压和电流。由于ICL7107芯片本身的强大功能,使用此芯片设计数字式电压表和电流表的电路结构与传统方法设计的数字式电压表和电流表的结构相比,结构简单,同时可靠性也大大提高。本文主要讨论单个表头的设计和表头集成过程中出现的问题及解决办法。
This design uses integration CMOS chip ICL7107 with A/D transform,loading save and coding module to design multi-purpose and multi-channel meter. The meter can measure multi-channel voltage and multi-channel current at the same time. Compared to traditional design, the configuration of digital voltmeter and ammeter is simpler and higher reliability for chip ICL7107 itself having powerful function. This paper focuses on designing a single meter and the problems brought by the combination of meters and the solution to the problems.
出处
《仪器仪表用户》
2009年第3期39-41,共3页
Instrumentation
