(19)
(11) EP 1 026 689 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:
28.02.2007 Bulletin 2007/09

(45) Mention of the grant of the patent:
03.01.2007 Bulletin 2007/01

(21) Application number: 00300886.9

(22) Date of filing: 04.02.2000
(51) International Patent Classification (IPC): 
G11C 5/14(2006.01)
 G05F 1/46(2006.01)

(54)

Voltage down converter with switched hysteresis

Abwärtsspannungswandler mit geschalteter Hysterese

Convertisseur d'abaissement de tension avec hysterese commutable

(84) Designated Contracting States:
GB

(30) Priority: 05.02.1999 US 118736 P
27.01.2000 US 492727

(43) Date of publication of application:
09.08.2000 Bulletin 2000/32

(73) Proprietor: UNITED MICROELECTRONICS CORPORATION
Hsin Chu City (TW)

(72) Inventor:
  • Hardee, Kim C.
    Colorado Springs, Colorado 80920 (US)

(74) Representative: Driver, Virginia Rozanne et al
Page White & Farrer Bedford House John Street
London, WC1N 2BF
London, WC1N 2BF (GB)


(56) References cited: : 
DE-A- 19 744 686
US-A- 5 493 234
 US-A- 5 408 172
   
       
    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).