(19)
(11) EP 0 985 278 A2

(12)

(88) Date of publication A3:
18.11.1999

(43) Date of publication:
15.03.2000 Bulletin 2000/11

(21) Application number: 99902303.9

(22) Date of filing: 15.01.1999
(51) International Patent Classification (IPC)7: H04B 5/00
(86) International application number:
PCT/US9900/936
(87) International publication number:
WO 9937/039 (22.07.1999 Gazette 1999/29)
(84) Designated Contracting States:
CH DE ES FR GB IT LI NL SE

(30) Priority: 15.01.1998 US 7485
16.04.1998 US 61529

(71) Applicant: Microchip Technology Incorporated
Chandler, AZ 85224-6199 (US)

(72) Inventors:
  • SCHIEKE, Peter
    Phoenix, AZ 85048 (US)
  • SMIT, Willem
    Chandler, AZ 85248 (US)

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

   


(54) MULTI-FREQUENCY VOLTAGE REGULATING CIRCUIT INCORPORATING A MAGNETIC FIELD POWER SENSOR AND PROGRAMMABLE MAGNETIC FIELD DETECTION