{"title":"一种用于2w 10mhz LTE功率放大器的40mhz 85.8%峰值效率开关转换器双相包络调制器","authors":"Joseph Sankman, Minkyu Song, D. Ma","doi":"10.1109/VLSIC.2014.6858440","DOIUrl":null,"url":null,"abstract":"In conventional envelope modulators, a linear regulator is required to attain fast tracking, but it is a significant source of efficiency degradation. To eliminate the linear regulator, a dual-phase switching converter with synchronized adaptive voltage tracking (SAVT) control is employed. The SAVT control enables synchronization and fast hysteretic response for voltage tracking. To overcome the switching converter slew rate limit, a push-pull slew rate enhancer is implemented. The modulator is fabricated with a 0.18μm process and achieves 85.8% peak efficiency tracking a 10MHz LTE envelope.","PeriodicalId":381216,"journal":{"name":"2014 Symposium on VLSI Circuits Digest of Technical Papers","volume":"8 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2014-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"7","resultStr":"{\"title\":\"A 40-MHz 85.8%-peak-efficiency switching-converter-only dual-phase envelope modulator for 2-W 10-MHz LTE power amplifier\",\"authors\":\"Joseph Sankman, Minkyu Song, D. Ma\",\"doi\":\"10.1109/VLSIC.2014.6858440\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In conventional envelope modulators, a linear regulator is required to attain fast tracking, but it is a significant source of efficiency degradation. To eliminate the linear regulator, a dual-phase switching converter with synchronized adaptive voltage tracking (SAVT) control is employed. The SAVT control enables synchronization and fast hysteretic response for voltage tracking. To overcome the switching converter slew rate limit, a push-pull slew rate enhancer is implemented. The modulator is fabricated with a 0.18μm process and achieves 85.8% peak efficiency tracking a 10MHz LTE envelope.\",\"PeriodicalId\":381216,\"journal\":{\"name\":\"2014 Symposium on VLSI Circuits Digest of Technical Papers\",\"volume\":\"8 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2014-06-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"7\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2014 Symposium on VLSI Circuits Digest of Technical Papers\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/VLSIC.2014.6858440\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2014 Symposium on VLSI Circuits Digest of Technical Papers","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/VLSIC.2014.6858440","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A 40-MHz 85.8%-peak-efficiency switching-converter-only dual-phase envelope modulator for 2-W 10-MHz LTE power amplifier
In conventional envelope modulators, a linear regulator is required to attain fast tracking, but it is a significant source of efficiency degradation. To eliminate the linear regulator, a dual-phase switching converter with synchronized adaptive voltage tracking (SAVT) control is employed. The SAVT control enables synchronization and fast hysteretic response for voltage tracking. To overcome the switching converter slew rate limit, a push-pull slew rate enhancer is implemented. The modulator is fabricated with a 0.18μm process and achieves 85.8% peak efficiency tracking a 10MHz LTE envelope.
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