{"title":"基于乒乓和斩波技术的旋转霍尔传感器信号和偏置T&H前端","authors":"Yongjia Li, M. Motz, L. Raghavan","doi":"10.1109/ESSCIRC.2018.8494293","DOIUrl":null,"url":null,"abstract":"A spun Hall sensor with continuous-time chopping and ping-pong sampling techniques for fast overcurrent detection application is presented in this paper. The proposed background track-and-hold ping-pong comparator continuously tracks the input Hall signal while cancels the Hall offset and the amplifier offset without shorting the input amplifier. In addition to the spinning-current technique, a system chopping and a chopped 6-bit DAC with temperature coefficient (TC) correction guarantee an overcurrent threshold drift of 1.06A (0.7% of the typical full-scale range 150A) from −50°C to 125°C.","PeriodicalId":355210,"journal":{"name":"ESSCIRC 2018 - IEEE 44th European Solid State Circuits Conference (ESSCIRC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"A Signal and Offset T&H Frontend for Spinning Hall Sensors with Ping-Pong and Chopping Techniques\",\"authors\":\"Yongjia Li, M. Motz, L. Raghavan\",\"doi\":\"10.1109/ESSCIRC.2018.8494293\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A spun Hall sensor with continuous-time chopping and ping-pong sampling techniques for fast overcurrent detection application is presented in this paper. The proposed background track-and-hold ping-pong comparator continuously tracks the input Hall signal while cancels the Hall offset and the amplifier offset without shorting the input amplifier. In addition to the spinning-current technique, a system chopping and a chopped 6-bit DAC with temperature coefficient (TC) correction guarantee an overcurrent threshold drift of 1.06A (0.7% of the typical full-scale range 150A) from −50°C to 125°C.\",\"PeriodicalId\":355210,\"journal\":{\"name\":\"ESSCIRC 2018 - IEEE 44th European Solid State Circuits Conference (ESSCIRC)\",\"volume\":\"1 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2018-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ESSCIRC 2018 - IEEE 44th European Solid State Circuits Conference (ESSCIRC)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ESSCIRC.2018.8494293\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"ESSCIRC 2018 - IEEE 44th European Solid State Circuits Conference (ESSCIRC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ESSCIRC.2018.8494293","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A Signal and Offset T&H Frontend for Spinning Hall Sensors with Ping-Pong and Chopping Techniques
A spun Hall sensor with continuous-time chopping and ping-pong sampling techniques for fast overcurrent detection application is presented in this paper. The proposed background track-and-hold ping-pong comparator continuously tracks the input Hall signal while cancels the Hall offset and the amplifier offset without shorting the input amplifier. In addition to the spinning-current technique, a system chopping and a chopped 6-bit DAC with temperature coefficient (TC) correction guarantee an overcurrent threshold drift of 1.06A (0.7% of the typical full-scale range 150A) from −50°C to 125°C.
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