| dc.contributor.author | Lim, Seungbum | |
| dc.contributor.author | Ranson, John | |
| dc.contributor.author | Otten, David M. | |
| dc.contributor.author | Perreault, David J. | |
| dc.date.accessioned | 2014-10-02T17:52:59Z | |
| dc.date.available | 2014-10-02T17:52:59Z | |
| dc.date.issued | 2013-03 | |
| dc.identifier.isbn | 978-1-4673-4355-8 | |
| dc.identifier.isbn | 978-1-4673-4354-1 | |
| dc.identifier.isbn | 978-1-4673-4353-4 | |
| dc.identifier.issn | 1048-2334 | |
| dc.identifier.uri | http://hdl.handle.net/1721.1/90549 | |
| dc.description.abstract | This paper presents a merged-two-stage circuit topology suitable for efficient LED drivers operating from either wide-range dc input voltage or ac line voltage. This two-stage topology is based on a soft-charged switched-capacitor pre-regulator/transformation stage and a high-frequency magnetic regulator stage. Soft charging of the switched capacitor circuit, zero voltage switching of the high-frequency regulator circuit, and time-based indirect scale current control are used to maintain high efficiency, high power density, and high power factor. Two implementations of the proposed architecture are demonstrated: a wide input voltage range dc-dc converter and a line interfaced ac-dc converter. The dc-dc converter shows 85–95% efficiency at 20 W power across 25–200 V input voltage range, and the ac-dc converter achieves 88% efficiency with 0.93 power factor at 8.4 W average power. | en_US |
| dc.language.iso | en_US | |
| dc.publisher | Institute of Electrical and Electronics Engineers (IEEE) | en_US |
| dc.relation.isversionof | http://dx.doi.org/10.1109/APEC.2013.6520311 | en_US |
| dc.rights | Creative Commons Attribution-Noncommercial-Share Alike | en_US |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-sa/4.0/ | en_US |
| dc.source | MIT web domain | en_US |
| dc.title | Two-stage power conversion architecture for an LED driver circuit | en_US |
| dc.type | Article | en_US |
| dc.identifier.citation | Lim, Seungbum, John Ranson, David M. Otten, and David J. Perreault. “Two-Stage Power Conversion Architecture for an LED Driver Circuit.” 2013 Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition (APEC) (March 2013). | en_US |
| dc.contributor.department | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science | en_US |
| dc.contributor.department | Massachusetts Institute of Technology. Research Laboratory of Electronics | en_US |
| dc.contributor.department | Massachusetts Institute of Technology. School of Engineering | en_US |
| dc.contributor.mitauthor | Lim, Seungbum | en_US |
| dc.contributor.mitauthor | Ranson, John | en_US |
| dc.contributor.mitauthor | Otten, David M. | en_US |
| dc.contributor.mitauthor | Perreault, David J. | en_US |
| dc.relation.journal | Proceedings of the 2013 Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition (APEC) | en_US |
| dc.eprint.version | Author's final manuscript | en_US |
| dc.type.uri | http://purl.org/eprint/type/ConferencePaper | en_US |
| eprint.status | http://purl.org/eprint/status/NonPeerReviewed | en_US |
| dspace.orderedauthors | Lim, Seungbum; Ranson, John; Otten, David M.; Perreault, David J. | en_US |
| dc.identifier.orcid | https://orcid.org/0000-0002-0746-6191 | |
| dc.identifier.orcid | https://orcid.org/0000-0003-0313-8243 | |
| dc.identifier.orcid | https://orcid.org/0000-0001-7022-4817 | |
| mit.license | OPEN_ACCESS_POLICY | en_US |
| mit.metadata.status | Complete | |
