摘要
动态电源电流(I_(DDT))测试作为一种不需要破坏被测电路的测试方法,为集成电路的故障诊断提供了宝贵的信号资源。模拟电路I_(DDT)信号测量方法研究是I_(DDT)故障诊断从理论研究走向实际应用必不可少的环节,在分析I_(DDT)测试特点的基础上,归纳总结了模拟电路I_(DDT)信号测量方法的研究现状。分类阐述了基于自动调零放大电路的测量方法、基于仪表放大电路的测量方法、基于电流镜的测量方法、不引入采样电阻的测量方法,比较了各种测量方法的优缺点,指出了模拟电路I_(DDT)信号测量的发展趋势。
As a test method that does not need to destroy the tested circuit, the dynamic supply current （IDDT） test provides a valuable signal resource for fault diagnosis of integrated circuits. The study of analog circuit IDDT signal measurement method is the key to the research of IDDT fault diagnosis from theory to application. On the basis of analyzing the characteristics of the test, the development status of IDDT signal measurement technology is summed up. Many measurement methods are classified, including the methods that use automatic zeroing amplifier, instrumentation amplifier and current mirror, especially the method without adopting sampling resistance. The advantages and disadvantages of various measurement methods are compared, and the development trend of analog circuitIDDT signal measurement is studied.
作者
余坚铿
张超杰
吴杰长
Yu Jiankeng;Zhang Chaojie;Wu Jiechang(College of Power Engineering,Naval University of Engineering,Wuhan 430033,China)
出处
《船电技术》
2018年第11期59-64,共6页
Marine Electric & Electronic Engineering
基金
国家自然科学基金(51509255)
关键词
动态电源电流
模拟电路
测量电路
研究进展
dynamic supply current
analog circuit
measuring circuit
the research progress
