{"title":"Modeling of efficiency UHF class-D power amplifier with bandpass sigma-delta modulation","authors":"O. Varlamov, I. Chugunov","doi":"10.1109/SINKHROINFO.2017.7997508","DOIUrl":null,"url":null,"abstract":"Sigma-delta modulation is a method of constructing the radio frequency linear power amplifier with the using non-linear components. It can significantly simplify the structure of the power amplification path, which in this case shall operate as one-bit DACs. The preliminary modeling of potential different variants of the output stage in classes E, F, D (voltage switching and current switching) and the pulsed gate modulation was done. It is shown that the required linearity of amplitude characteristic can be realized only in the class D amplifier with voltage switching. Such an amplifier can be constructed in a bridge or half-bridge circuits.","PeriodicalId":372303,"journal":{"name":"2017 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SINKHROINFO)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"16","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2017 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SINKHROINFO)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/SINKHROINFO.2017.7997508","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 16
Abstract
Sigma-delta modulation is a method of constructing the radio frequency linear power amplifier with the using non-linear components. It can significantly simplify the structure of the power amplification path, which in this case shall operate as one-bit DACs. The preliminary modeling of potential different variants of the output stage in classes E, F, D (voltage switching and current switching) and the pulsed gate modulation was done. It is shown that the required linearity of amplitude characteristic can be realized only in the class D amplifier with voltage switching. Such an amplifier can be constructed in a bridge or half-bridge circuits.
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