(19)

(11)

EP 2 158 669 A2

(12)

(88) Date of publication A3: 23.04.2009 (43) Date of publication: 03.03.2010 Bulletin 2010/09 (21) Application number: 08794352.8 (22) Date of filing: 12.06.2008

(51) International Patent Classification (IPC):  H02M 3/156(2006.01) (86) International application number: PCT/US2008/007334 (87) International publication number: WO 2008/154031 (18.12.2008 Gazette 2008/51)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 13.06.2007 US 934334 P (71) Applicant: University Of Delaware Newark, DE 19716 (US)	(72) Inventors: KIAMILEV, Fouad Hockessin, Delaware 19707 (US) WAITE, Nicholas Andrew Nassau, Delaware 19969 (US) (74) Representative: HOFFMANN EITLE  Patent- und Rechtsanwälte Arabellastrasse 4 81925 München 81925 München (DE)