(19)
(11) EP 0 925 635 A1

(12)

(43) Date of publication:
30.06.1999 Bulletin 1999/26

(21) Application number: 97949816.0

(22) Date of filing: 29.11.1997
(51) International Patent Classification (IPC): 
G05F 3/ 02( . )
H02M 1/ 36( . )
H02M 1/ 00( . )
H02M 3/ 07( . )
(86) International application number:
PCT/US1997/023066
(87) International publication number:
WO 1999/003192 (21.01.1999 Gazette 1999/03)
(84) Designated Contracting States:
DE FR GB IT

(30) Priority: 10.07.1997 US 19970891343

(71) Applicant: MICROCHIP TECHNOLOGY INC.
Chandler, AZ 85244 (US)

(72) Inventor:
  • THOMSEN, Joseph, A.
    Gilbert, AZ 85234 (US)

(74) Representative: Frohwitter, Bernhard, Dipl.-Ing. 
Patent- und Rechtsanwälte, Possartstrasse 20
81679 München
81679 München (DE)

   


(54) A PROGRESSIVE START-UP CHARGE PUMP AND METHOD THEREFOR