(19)

(11)

EP 1 138 109 A2

(12)

(88) Date of publication A3: 17.08.2000 (43) Date of publication: 04.10.2001 Bulletin 2001/40 (21) Application number: 99957258.9 (22) Date of filing: 30.11.1999

(51) International Patent Classification (IPC)7: H02M 1/00 (86) International application number: PCT/DK9900/669 (87) International publication number: WO 0033/448 (08.06.2000 Gazette 2000/23)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL (30) Priority: 30.11.1998 DK 157498 (71) Applicant: Bang & Olufsen Powerhouse A/S 2800 Lyngby (DK)	(72) Inventors: NIELSEN, Karsten DK-2800 Kgl Lyngby (DK) CHRISTENSEN, Frank, Schwartz DK-2400 K benhavn NV (DK) FREDERIKSEN, Thomas, Mansachs DK-2400 K benhavn NV (DK) (74) Representative: Lindberg, Klas Valter Bo et al AWAPATENT AB,Södra Hamngatan 37-41,P.O. Box 11394 404 28 Göteborg 404 28 Göteborg (SE)