{"title":"A high-sensitivity current-shunt monitor with extended input common-mode voltage range","authors":"Yaping Cheng, S. Huang, Jiaqi Yin, Q. Duan","doi":"10.1109/ICAM.2017.8242129","DOIUrl":null,"url":null,"abstract":"This paper presents an effective design solution for a high-sensitivity current-shunt monitor which operates with an independent supply voltage from 5 to 16 V and achieves a wide input common-mode voltage range from −16 to 60 V. The proposed current-shunt monitor adopts two amplifiers, a current source and several resistors to constitute a feedback circuit and successfully sense drops across shunt at common-mode voltages from −16 to 60 V. The sensing current was magnified by using a current-mirror circuit and a linear regulator. The proposed architecture has been implemented in a VIS-0.25μm BCD technology and its performances have been confirmed by simulation. The simulation results show that the current-shunt monitor can sense an input voltage difference between 4 and 16 mV and keeps a constant scaled gain of 100V / V where the input CM voltage varies from −16 to 60 V.","PeriodicalId":117801,"journal":{"name":"2017 2nd IEEE International Conference on Integrated Circuits and Microsystems (ICICM)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2017 2nd IEEE International Conference on Integrated Circuits and Microsystems (ICICM)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICAM.2017.8242129","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
This paper presents an effective design solution for a high-sensitivity current-shunt monitor which operates with an independent supply voltage from 5 to 16 V and achieves a wide input common-mode voltage range from −16 to 60 V. The proposed current-shunt monitor adopts two amplifiers, a current source and several resistors to constitute a feedback circuit and successfully sense drops across shunt at common-mode voltages from −16 to 60 V. The sensing current was magnified by using a current-mirror circuit and a linear regulator. The proposed architecture has been implemented in a VIS-0.25μm BCD technology and its performances have been confirmed by simulation. The simulation results show that the current-shunt monitor can sense an input voltage difference between 4 and 16 mV and keeps a constant scaled gain of 100V / V where the input CM voltage varies from −16 to 60 V.