Very High Frequency Resonant DC/DC Converters for LED Lighting

Mickey Pierre Madsen, Arnold Knott, Michael A. E. Andersen

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Abstract

This paper presents a very high frequency DC/DC converter for LED lighting. Several resonant topologies are compared and their usability discussed. At the end the resonant SEPIC converter is chosen based on the achievable power density and total bill of material. Simulations of a 51 MHz converter with 40 V input and 15 V output are made. The simulation shows possibility of achieving efficiency up to 87 % even with a HEXFET Power MOSFET. Three prototypes of the simulated converter are implemented showing good correlation with simulations. The prototypes have efficiencies up to 84 % and power densities up to 8.9 W/cm3 (146 W/in3).
Original languageEnglish
Title of host publication2013 IEEE Applied Power Electronics Conference and Exposition
PublisherIEEE
Publication date2013
Pages835-839
ISBN (Print)978-1-4673-4355-8
Publication statusPublished - 2013
Event2013 28th Annual IEEE Applied Power Electronics Conference and Exposition - Long Beach Convention Center, Long Beach, United States
Duration: 17 Mar 201321 Mar 2013
Conference number: 28
https://ieeexplore.ieee.org/xpl/conhome/6516132/proceeding

Conference

Conference2013 28th Annual IEEE Applied Power Electronics Conference and Exposition
Number28
LocationLong Beach Convention Center
Country/TerritoryUnited States
CityLong Beach
Period17/03/201321/03/2013
Internet address

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