{"title":"一种动态电压缩放控制器，可在全范围负载条件下实现最大的节能","authors":"Guowen Wei, O. Trescases, W. Ng","doi":"10.1109/EDSSC.2005.1635284","DOIUrl":null,"url":null,"abstract":"For devices operating mainly in the standby or low power mode, energy saving from dynamic voltage scaling (DVS) is limited due to very poor efficiency of the PWM DC/DC converter operating at light load conditions, resulting in shorter than expected battery life. This paper first presents the design of a DVS controller - realized on a Xilinx CoolRunner 2 CPLD - having a 25μs worst case transient response and 15 mV average Vddstep size across an 1.30-1.90 V range. Next a scheme is proposed in which the DVS controller automatically selects between the PFM and PWM mode DC/DC conversion to realize maximum power saving across full range of load conditions.","PeriodicalId":429314,"journal":{"name":"2005 IEEE Conference on Electron Devices and Solid-State Circuits","volume":"400 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2005-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"7","resultStr":"{\"title\":\"A Dynamic Voltage Scaling Controller for Maximum Energy Saving Across Full Range of Load Conditions\",\"authors\":\"Guowen Wei, O. Trescases, W. Ng\",\"doi\":\"10.1109/EDSSC.2005.1635284\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"For devices operating mainly in the standby or low power mode, energy saving from dynamic voltage scaling (DVS) is limited due to very poor efficiency of the PWM DC/DC converter operating at light load conditions, resulting in shorter than expected battery life. This paper first presents the design of a DVS controller - realized on a Xilinx CoolRunner 2 CPLD - having a 25μs worst case transient response and 15 mV average Vddstep size across an 1.30-1.90 V range. Next a scheme is proposed in which the DVS controller automatically selects between the PFM and PWM mode DC/DC conversion to realize maximum power saving across full range of load conditions.\",\"PeriodicalId\":429314,\"journal\":{\"name\":\"2005 IEEE Conference on Electron Devices and Solid-State Circuits\",\"volume\":\"400 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2005-12-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"7\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2005 IEEE Conference on Electron Devices and Solid-State Circuits\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/EDSSC.2005.1635284\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2005 IEEE Conference on Electron Devices and Solid-State Circuits","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/EDSSC.2005.1635284","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A Dynamic Voltage Scaling Controller for Maximum Energy Saving Across Full Range of Load Conditions
For devices operating mainly in the standby or low power mode, energy saving from dynamic voltage scaling (DVS) is limited due to very poor efficiency of the PWM DC/DC converter operating at light load conditions, resulting in shorter than expected battery life. This paper first presents the design of a DVS controller - realized on a Xilinx CoolRunner 2 CPLD - having a 25μs worst case transient response and 15 mV average Vddstep size across an 1.30-1.90 V range. Next a scheme is proposed in which the DVS controller automatically selects between the PFM and PWM mode DC/DC conversion to realize maximum power saving across full range of load conditions.
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