(19)
(11) EP 1 470 632 A1

(12)

(43) Date of publication:
27.10.2004 Bulletin 2004/44

(21) Application number: 03734932.1

(22) Date of filing: 23.01.2003
(51) International Patent Classification (IPC)7: H02M 3/335
(86) International application number:
PCT/SE2003/000113
(87) International publication number:
WO 2003/065559 (07.08.2003 Gazette 2003/32)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR
Designated Extension States:
AL LT LV MK RO

(30) Priority: 28.01.2002 SE 0200223

(71) Applicant: ABB AB
721 83 Västeras (SE)

(72) Inventor:
  • DEMETRIADES, Georgios
    S-352 51 Växjö (SE)

   


(54) AN APPARATUS FOR VOLTAGE CONVERSION AND A METHOD FOR CONTROL THEREOF