Global Patent Index - EP 2774452 A1

EP 2774452 A1 20140910 - AN INDUCTION HEATING COOKER

Title (en)

AN INDUCTION HEATING COOKER

Title (de)

INDUKTIONSHERD

Title (fr)

CUISEUR À INDUCTION

Publication

EP 2774452 A1 20140910 (EN)

Application

EP 12769110 A 20121008

Priority

  • TR 201110995 A 20111103
  • EP 2012069850 W 20121008

Abstract (en)

[origin: WO2013064331A1] The present invention relates to an induction heating cooker (1) comprising a bridge rectifier (3) that converts the alternative current to direct current, a DC-line inductor (4) and a DC-line capacitor (5) disposed at the output of the bridge rectifier (3), a parallel resonant circuit (8) having an induction coil (6) that provides the vessel (K) placed thereon to be heated with the magnetic field it generates and a resonant capacitor (7) connected in parallel to the induction coil (6), a power switch (9) that drives the parallel resonant circuit (8), a collector node (10) whereon the resonant voltage (Vce) is generated in the open position of the power switch (9) during the non-conducting time (Toff), a control unit (13) that regulates the operation of the power switch (9) and a drive circuit (12) that provides the power switch (9) to be driven with the drive voltage (Vge), and wherein the presence of the vessel (K) on the induction coil (6) and the characteristic features thereof are detected in case of variable AC mains voltage conditions.

IPC 8 full level

H05B 6/06 (2006.01); H02M 7/537 (2006.01)

CPC (source: EP)

H05B 6/062 (2013.01); H02M 2007/4815 (2013.01); H05B 2213/05 (2013.01); Y02B 70/10 (2013.01)

Citation (search report)

See references of WO 2013064331A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

WO 2013064331 A1 20130510; EP 2774452 A1 20140910

DOCDB simple family (application)

EP 2012069850 W 20121008; EP 12769110 A 20121008