(19)
(11) EP 2 111 682 A2

(12)

(88) Date of publication A3:
24.03.2005

(43) Date of publication:
28.10.2009 Bulletin 2009/44

(21) Application number: 03814354.1

(22) Date of filing: 23.12.2003
(51) International Patent Classification (IPC): 
H02J 7/00(2006.01)
(86) International application number:
PCT/US2003/041117
(87) International publication number:
WO 2004/059757 (15.07.2004 Gazette 2004/29)
(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 RO SE SI SK TR

(30) Priority: 23.12.2002 US 328466
11.02.2003 US 364228
26.03.2003 US 457826 P
03.07.2003 US 484635 P
14.07.2003 US 618901
27.08.2003 US 648891

(71) Applicant: O2Micro, Inc.
Santa Clara, CA 95054 (US)

(72) Inventors:
  • STANESTI, Vlad Popescu,
    San Jose, CA 95129 (US)
  • NICULAE, Marian
    San Jose, CA 95130 (US)
  • BUCUR, Constantin
    Santa Clara, CA 95051 (US)

(74) Representative: Jungen, Rolf 
Lippert, Stachow & Partner Frankenforster Strasse 135-137
51427 Bergisch Gladbach
51427 Bergisch Gladbach (DE)


(56) References cited: : 
   
       


    (54) CHARGING CIRCUIT FOR PARALLEL CHARGING IN MULTIPLE BATTERY SYSTEMS