(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