(19)
(11) EP 1 236 265 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
04.04.2012 Bulletin 2012/14

(45) Mention of the grant of the patent:
18.01.2012 Bulletin 2012/03

(21) Application number: 00990984.7

(22) Date of filing: 02.11.2000
(51) International Patent Classification (IPC): 
H02M 3/335(2006.01)
(86) International application number:
PCT/US2000/041958
(87) International publication number:
WO 2001/033709 (10.05.2001 Gazette 2001/19)

(54)

EXTERNALLY-DRIVEN SCHEME FOR SYNCHRONOUS RECTIFICATION

FREMDANSTEUERUNGSVERFAHREN FÜR SYNCHRONGLEICHRICHTUNG

PROCEDURE A COMMANDE EXTERNE POUR RECTIFICATION SYNCHRONE

(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

(30) Priority: 05.11.1999 US 434777

(43) Date of publication of application:
04.09.2002 Bulletin 2002/36

(73) Proprietor: Ericsson, Inc.
Plano, TX 75024 (US)

(72) Inventors:
  • FARRINGTON, Richard, W.
    Heath, TX 75087 (US)
  • SVARDSJO, Claes
    13146 Nacka (SE)
  • HART, William
    Plano, TX 75025 (US)

(74) Representative: HOFFMANN EITLE 
Patent- und Rechtsanwälte Arabellastraße 4
81925 München
81925 München (DE)


(56) References cited: : 
US-A- 5 274 543
 US-A- 5 590 032
   
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  • PATENT ABSTRACTS OF JAPAN vol. 1997, no. 03, 31 March 1997 (1997-03-31) & JP 08 289538 A (ORIGIN ELECTRIC CO.), 1 November 1996 (1996-11-01)
  • PATENT ABSTRACTS OF JAPAN vol. 1998, no. 13, 30 November 1998 (1998-11-30) & JP 10 225114 A (SHINDENGEN ELECTRIC MFG C.), 21 August 1998 (1998-08-21)
  • COBOS J A ET AL: "Several alternatives for low output voltage on board converters", APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION, 1998. APEC '98. C ONFERENCE PROCEEDINGS 1998., THIRTEENTH ANNUAL ANAHEIM, CA, USA 15-19 FEB. 1998, NEW YORK, NY, USA,IEEE, US, vol. 1, 15 February 1998 (1998-02-15), pages 163-169, XP010263567, DOI: DOI:10.1109/APEC.1998.647686 ISBN: 978-0-7803-4340-5
  • MURAKAMI N ET AL: "A highly efficient, low-profile 300-W power pack for telecommunications systems", APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION, 1994. APEC '94. C ONFERENCE PROCEEDINGS 1994., NINTH ANNUAL ORLANDO, FL, USA 13-17 FEB. 1994, NEW YORK, NY, USA,IEEE, 13 February 1994 (1994-02-13), pages 786-792, XP010118490, DOI: DOI:10.1109/APEC.1994.316318 ISBN: 978-0-7803-1456-6
   
Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).