{"title":"一个0.48mm2 5μW-10mW的室内/室外光伏能量收集管理单元，用于65nm SoC，基于单个双向多增益/多模式开关帽转换器和超级帽存储","authors":"D. Bol, E. Boufouss, D. Flandre, J. Vos","doi":"10.1109/ESSCIRC.2015.7313872","DOIUrl":null,"url":null,"abstract":"We propose an energy-harvesting management unit to interface a PV harvester with a storage supercapacitor while generating a 1V regulated supply VREG. Direct connection between stacked PV cells and VREG allows virtual 100% conversion efficiency between the harvester and the supplied circuits, while the use of a single bidirectional switched-capacitor DC/DC converter between VREG and the supercap allows 0.48mm2 area in a 65nm IoT vision SoC with a single external filtering capacitor. To cope with the 0-3V charge-dependent supercap voltage range and the wide 5μW-10mW harvester/load power range, the converter features adaptive selection between multiple voltage gains and power modes.","PeriodicalId":11845,"journal":{"name":"ESSCIRC Conference 2015 - 41st European Solid-State Circuits Conference (ESSCIRC)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2015-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"18","resultStr":"{\"title\":\"A 0.48mm2 5μW-10mW indoor/outdoor PV energy-harvesting management unit in a 65nm SoC based on a single bidirectional multi-gain/multi-mode switched-cap converter with supercap storage\",\"authors\":\"D. Bol, E. Boufouss, D. Flandre, J. Vos\",\"doi\":\"10.1109/ESSCIRC.2015.7313872\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We propose an energy-harvesting management unit to interface a PV harvester with a storage supercapacitor while generating a 1V regulated supply VREG. Direct connection between stacked PV cells and VREG allows virtual 100% conversion efficiency between the harvester and the supplied circuits, while the use of a single bidirectional switched-capacitor DC/DC converter between VREG and the supercap allows 0.48mm2 area in a 65nm IoT vision SoC with a single external filtering capacitor. To cope with the 0-3V charge-dependent supercap voltage range and the wide 5μW-10mW harvester/load power range, the converter features adaptive selection between multiple voltage gains and power modes.\",\"PeriodicalId\":11845,\"journal\":{\"name\":\"ESSCIRC Conference 2015 - 41st European Solid-State Circuits Conference (ESSCIRC)\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2015-11-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"18\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ESSCIRC Conference 2015 - 41st European Solid-State Circuits Conference (ESSCIRC)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ESSCIRC.2015.7313872\",\"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 Conference 2015 - 41st European Solid-State Circuits Conference (ESSCIRC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ESSCIRC.2015.7313872","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A 0.48mm2 5μW-10mW indoor/outdoor PV energy-harvesting management unit in a 65nm SoC based on a single bidirectional multi-gain/multi-mode switched-cap converter with supercap storage
We propose an energy-harvesting management unit to interface a PV harvester with a storage supercapacitor while generating a 1V regulated supply VREG. Direct connection between stacked PV cells and VREG allows virtual 100% conversion efficiency between the harvester and the supplied circuits, while the use of a single bidirectional switched-capacitor DC/DC converter between VREG and the supercap allows 0.48mm2 area in a 65nm IoT vision SoC with a single external filtering capacitor. To cope with the 0-3V charge-dependent supercap voltage range and the wide 5μW-10mW harvester/load power range, the converter features adaptive selection between multiple voltage gains and power modes.
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