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模拟电路动态电源电流信号测量方法综述

更新时间:2020-10-21 02:24:52 大小:638K 上传用户:gsy幸运查看TA发布的资源 标签:模拟电路 下载积分:1分 评价赚积分 (如何评价?) 打赏 收藏 评论(0) 举报

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动态电源电流(IDDT)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IDDT信号测量方法研究是IDDT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IDDT测试特点的基础上,归纳总结了模拟电路IDDT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IDDT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 measure...

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