(19)
(11) EP 1 649 594 A1

(12)

(43) Date of publication:
26.04.2006 Bulletin 2006/17

(21) Application number: 04748731.9

(22) Date of filing: 12.07.2004
(51) International Patent Classification (IPC): 
H03F 1/02(1968.09)
H03F 3/217(1974.07)
H03F 1/32(1968.09)
(86) International application number:
PCT/NL2004/000506
(87) International publication number:
WO 2005/008884 (27.01.2005 Gazette 2005/04)
(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 PL PT RO SE SI SK TR

(30) Priority: 18.07.2003 EP 03077273

(71) Applicant: Koninklijke Philips Electronics N.V.
5621 BA Eindhoven (NL)

(72) Inventors:
  • VAN ROERMUND, Arthur, Hermanus, Maria
    NL-5708 KS Helmond (NL)
  • HEGT, Johannes, Albertus
    NL-5244 HM Rosmalen (NL)

(74) Representative: Eleveld, Koop Jan 
Philips Intellectual Property & Standards, P.O. Box 220
5600 AE Eindhoven
5600 AE Eindhoven (NL)

   


(54) AMPLIFYING CIRCUIT COMPRISING AN ENVELOPE MODULATED LIMIT CYCLES MODULATOR CIRCUIT