Sine-Reference Band (SRB)-Controlled Average Current Technique for Phase-Cut Dimmable AC-DC Buck LED Lighting Driver without Electrolytic Capacitor

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dc.contributor.authorShin, Changsikko
dc.contributor.authorLee, Wonjiko
dc.contributor.authorLee, Se-Wonko
dc.contributor.authorLee, Sang Hanko
dc.contributor.authorBang, Jun-Sukko
dc.contributor.authorHong, Sung-Wanko
dc.contributor.authorCho, Gyu-Hyeongko
dc.date.accessioned2018-05-24T02:41:47Z-
dc.date.available2018-05-24T02:41:47Z-
dc.date.created2017-11-29-
dc.date.created2017-11-29-
dc.date.issued2018-08-
dc.identifier.citationIEEE TRANSACTIONS ON POWER ELECTRONICS, v.33, no.8, pp.6994 - 7009-
dc.identifier.issn0885-8993-
dc.identifier.urihttp://hdl.handle.net/10203/242322-
dc.description.abstractThis paper presents a phase-cut dimmable AC-DC buck LED driver for electrolytic capacitor-less LED lighting applications. In the driver, the sine-reference band (SRB)-controlled average current technique is proposed to perform rectified sine-average current control and phase-cut dimming control. The rectified sine-average current control can regulate the average value of sine-wave LED current, maintaining a high power factor (PF) over a wide range of AC input voltage and output LED load. The phase-cut dimming control not only makes the LED driver compatible with two types of phase-cut dimmers, namely, leading-edge and trailing-edge dimming types, but also eliminates visible dimming flicker at the AC line frequency. Fabricated in a 0.35 μm CMOS process, experimental results show the line regulation of ± 2.36 % over 90 to 260 VAC and the load regulation of ± 0.65 % within the load range of 10 to 36 LEDs. The PF exceeds 0.95 under all conditions, and the peak efficiency of 90.7 % is achieved. The analysis of the flicker frequency verifies that the proposed dimmable LED driver completely eliminates visible flicker owing to the phase dimming variations without an output electrolytic capacitor.-
dc.languageEnglish-
dc.publisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC-
dc.subjectHIGH-POWER-FACTOR-
dc.subjectCURRENT-ACCURACY-
dc.subjectCONDUCTION MODE-
dc.subjectPFC CONVERTER-
dc.subjectLAMPS-
dc.subjectPEAK-
dc.titleSine-Reference Band (SRB)-Controlled Average Current Technique for Phase-Cut Dimmable AC-DC Buck LED Lighting Driver without Electrolytic Capacitor-
dc.typeArticle-
dc.identifier.wosid000431378100046-
dc.identifier.scopusid2-s2.0-85030772441-
dc.type.rimsART-
dc.citation.volume33-
dc.citation.issue8-
dc.citation.beginningpage6994-
dc.citation.endingpage7009-
dc.citation.publicationnameIEEE TRANSACTIONS ON POWER ELECTRONICS-
dc.identifier.doi10.1109/TPEL.2017.2758167-
dc.contributor.localauthorCho, Gyu-Hyeong-
dc.contributor.nonIdAuthorLee, Wonji-
dc.contributor.nonIdAuthorLee, Se-Won-
dc.contributor.nonIdAuthorHong, Sung-Wan-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorAC-DC-
dc.subject.keywordAuthorbuck LED driver-
dc.subject.keywordAuthorcurrent regulation-
dc.subject.keywordAuthordimming compatibility-
dc.subject.keywordAuthorelectrolytic capacitor (E-Cap)-
dc.subject.keywordAuthorphase-cut dimming control-
dc.subject.keywordAuthorpower factor (PF)-
dc.subject.keywordAuthorrectified sine-average (RSA) current control-
dc.subject.keywordAuthorvisible flicker-
dc.subject.keywordPlusHIGH-POWER-FACTOR-
dc.subject.keywordPlusCURRENT-ACCURACY-
dc.subject.keywordPlusCONDUCTION MODE-
dc.subject.keywordPlusPFC CONVERTER-
dc.subject.keywordPlusLAMPS-
dc.subject.keywordPlusPEAK-
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