(19)

(11)

EP 1 817 835 A1

(12)

(43) Date of publication: 15.08.2007 Bulletin 2007/33 (21) Application number: 05803558.5 (22) Date of filing: 14.11.2005

(51) International Patent Classification (IPC):  H02K 16/04(2006.01) H02K 19/10(2006.01) (86) International application number: PCT/GB2005/004367 (87) International publication number: WO 2006/051318 (18.05.2006 Gazette 2006/20)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR (30) Priority: 13.11.2004 GB 0425118 (71) Applicant: CRANFIELD UNIVERSITY Shrivenham, Swindon SN6 8LA (GB)	(72) Inventors: LUK, Patrick, Chi-Kwong, Cranfield University Swindon, Wiltshire SN6 8LA (GB) JINUPUN, Poramaste, Cranfield University Swindon, Wiltshire SN6 8LA (GB) (74) Representative: Jones, Ithel Rhys et al Wynne-Jones, Lainé & James LLP Essex Place 22 Rodney Road Cheltenham Gloucestershire GL50 1JJ Cheltenham Gloucestershire GL50 1JJ (GB)