40nm CMOS DC-DC PWM升压转换器，用于移动应用中的高功率音频

2012 IEEE International Conference on Electronics Design, Systems and Applications (ICEDSA) Pub Date : 2012-11-01 DOI:10.1109/ICEDSA.2012.6507823

F. Neri, F. Di Fazio, S. Lonka, S. Somayaiula, L. Cimaz, S. Cahu, R. Pantaleon

{"title":"40nm CMOS DC-DC PWM升压转换器，用于移动应用中的高功率音频","authors":"F. Neri, F. Di Fazio, S. Lonka, S. Somayaiula, L. Cimaz, S. Cahu, R. Pantaleon","doi":"10.1109/ICEDSA.2012.6507823","DOIUrl":null,"url":null,"abstract":"On-chip boost DC-DC converter used for high power audio ICs for mobile application is presented in this paper. For special systematic requirement, a combination of fixed-frequency pulse-width modulation (PWM) and hysteretic PWM control scheme is used. This converter is designed with a 40nm CMOS process and experimental results show that, the converter can operate with supply voltage from 2.7 to 4.2 V, which is suitable for single-cell lithium-ion rechargeable battery supply application, and boost voltage up to 4.9 V for delivering 1 Wrms audio power output. The output ripple voltage is about 45 mV with 20 μF off-chip capacitors and 2.2 μH off-chip inductor. The power efficiency is over 82% for lWrms audio application while over 75% for load currents up to 900mA, and maximum to 88% for 200mA load current.","PeriodicalId":132198,"journal":{"name":"2012 IEEE International Conference on Electronics Design, Systems and Applications (ICEDSA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"40nm CMOS DC-DC PWM boost converter for high power audio in mobile application\",\"authors\":\"F. Neri, F. Di Fazio, S. Lonka, S. Somayaiula, L. Cimaz, S. Cahu, R. Pantaleon\",\"doi\":\"10.1109/ICEDSA.2012.6507823\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"On-chip boost DC-DC converter used for high power audio ICs for mobile application is presented in this paper. For special systematic requirement, a combination of fixed-frequency pulse-width modulation (PWM) and hysteretic PWM control scheme is used. This converter is designed with a 40nm CMOS process and experimental results show that, the converter can operate with supply voltage from 2.7 to 4.2 V, which is suitable for single-cell lithium-ion rechargeable battery supply application, and boost voltage up to 4.9 V for delivering 1 Wrms audio power output. The output ripple voltage is about 45 mV with 20 μF off-chip capacitors and 2.2 μH off-chip inductor. The power efficiency is over 82% for lWrms audio application while over 75% for load currents up to 900mA, and maximum to 88% for 200mA load current.\",\"PeriodicalId\":132198,\"journal\":{\"name\":\"2012 IEEE International Conference on Electronics Design, Systems and Applications (ICEDSA)\",\"volume\":\"1 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2012-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2012 IEEE International Conference on Electronics Design, Systems and Applications (ICEDSA)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICEDSA.2012.6507823\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2012 IEEE International Conference on Electronics Design, Systems and Applications (ICEDSA)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICEDSA.2012.6507823","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 3

摘要

介绍了一种用于移动高功率音频集成电路的片上升压DC-DC变换器。针对特殊的系统要求，采用定频脉宽调制(PWM)和滞后脉宽调制相结合的控制方案。该变换器采用40nm CMOS工艺设计，实验结果表明，该变换器可以在2.7 ~ 4.2 V的供电电压范围内工作，适用于单节锂离子充电电池的供电应用，升压高达4.9 V，可提供1 Wrms的音频功率输出。采用20 μF的片外电容和2.2 μH的片外电感，输出纹波电压约为45 mV。lWrms音频应用的功率效率超过82%，负载电流高达900mA的功率效率超过75%，200mA负载电流的功率效率最高可达88%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

40nm CMOS DC-DC PWM boost converter for high power audio in mobile application

On-chip boost DC-DC converter used for high power audio ICs for mobile application is presented in this paper. For special systematic requirement, a combination of fixed-frequency pulse-width modulation (PWM) and hysteretic PWM control scheme is used. This converter is designed with a 40nm CMOS process and experimental results show that, the converter can operate with supply voltage from 2.7 to 4.2 V, which is suitable for single-cell lithium-ion rechargeable battery supply application, and boost voltage up to 4.9 V for delivering 1 Wrms audio power output. The output ripple voltage is about 45 mV with 20 μF off-chip capacitors and 2.2 μH off-chip inductor. The power efficiency is over 82% for lWrms audio application while over 75% for load currents up to 900mA, and maximum to 88% for 200mA load current.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

2012 IEEE International Conference on Electronics Design, Systems and Applications (ICEDSA)

自引率

0.00%

发文量