(19)

(11)

EP 1 685 644 A1

(12)

(43) Date of publication: 02.08.2006 Bulletin 2006/31 (21) Application number: 03783275.5 (22) Date of filing: 10.11.2003

(51) International Patent Classification (IPC):  H02P 6/18(2006.01) (86) International application number: PCT/US2003/035761 (87) International publication number: WO 2005/048445 (26.05.2005 Gazette 2005/21)

(84) Designated Contracting States: DE IT (71) Applicant: INTERNATIONAL RECTIFIER CORPORATION El Segundo, CA 90245 (US)	(72) Inventor: HO, Eddy, Ying Yin Torrance, CA 90505 (US) (74) Representative: Gleiss, Alf-Olav et al Gleiss Grosse Schrell & Partner Patentanwälte Rechtsanwälte Leitzstrasse 45 70469 Stuttgart 70469 Stuttgart (DE)