Dênis de Castro Pereira, Everton Bernard Figueiredo Rabelo, P. S. Almeida, Guilherme Márcio Soares, F. L. Tofoli, Henrique Antônio Carvalho Braga
{"title":"Efficiency Analysis for Interleaved Buck Converters Employed as Extra-High Current COB LED Drivers","authors":"Dênis de Castro Pereira, Everton Bernard Figueiredo Rabelo, P. S. Almeida, Guilherme Márcio Soares, F. L. Tofoli, Henrique Antônio Carvalho Braga","doi":"10.1109/COBEP/SPEC44138.2019.9065543","DOIUrl":null,"url":null,"abstract":"This work presents a performance evaluation concerning interleaved buck structures used to drive extra-high current (up to 12 A) chip-on-board (COB) light-emitting diodes (LEDs). The analysis is carried out employing nonideal elements in simulations so that a better and reliable approach can be obtained as close to real results as possible. Aiming at a thorough analysis of conduction losses at very high current levels in floodlighting applications, interleaved buck converters (IBCs) are employed to establish a comparative approach concerning global efficiency and component count for conventional and synchronous topologies. Furthermore, the 3-cell IBC is experimentally implemented to evaluate and compare the total losses for this very-high current lighting application.","PeriodicalId":69617,"journal":{"name":"电力电子","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"电力电子","FirstCategoryId":"1093","ListUrlMain":"https://doi.org/10.1109/COBEP/SPEC44138.2019.9065543","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
This work presents a performance evaluation concerning interleaved buck structures used to drive extra-high current (up to 12 A) chip-on-board (COB) light-emitting diodes (LEDs). The analysis is carried out employing nonideal elements in simulations so that a better and reliable approach can be obtained as close to real results as possible. Aiming at a thorough analysis of conduction losses at very high current levels in floodlighting applications, interleaved buck converters (IBCs) are employed to establish a comparative approach concerning global efficiency and component count for conventional and synchronous topologies. Furthermore, the 3-cell IBC is experimentally implemented to evaluate and compare the total losses for this very-high current lighting application.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
