(19)
(11) EP 1 255 421 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
24.09.2003 Bulletin 2003/39

(43) Date of publication A2:
06.11.2002 Bulletin 2002/45

(21) Application number: 02007362.3

(22) Date of filing: 08.04.2002
(51) International Patent Classification (IPC)7: H05B 6/06
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 03.05.2001 IT MI010910

(71) Applicant: C.P.E. Consultants Plastics Engineering
20090 Limito di Pioltello (Milano) (IT)

(72) Inventors:
  • Raffaeta, Roberto
    38080 Carisolo (Trento) (IT)
  • Nolli, Gianluca
    20060 Pozzuolo Martesana (Milano) (IT)
  • Ieva, Francesco
    20142 Milano (IT)

(74) Representative: Modiano, Guido, Dr.-Ing. et al
Modiano & Associati SpA Via Meravigli, 16
20123 Milano
20123 Milano (IT)

   


(54) Induction cooking apparatus with improved characteristics


(57) An induction cooking apparatus (1), comprising an inductor element (10) driven by an inverter (7), which is in turn controlled by a control circuit (6), resonance capacitors (11) being connected in parallel to the inductor element (10); the apparatus further comprises a real-time control unit (5) suitable to detect the resonance current of a resonance circuit constituted by the inductor element (10) and by the resonance capacitors (11), and the phase current of the power supply line, in order to send, at each half-cycle of the fundamental wave, a driving signal for the control circuit in order to ensure a perfect resonance condition.






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