EP 3920661 B1 20230823 - INDUCTION HOB AND METHOD FOR OPERATING AN INDUCTION HOB
Title (en)
INDUCTION HOB AND METHOD FOR OPERATING AN INDUCTION HOB
Title (de)
VERFAHREN ZUM BETREIBEN EINES INDUKTIONSKOCHFELDS UND INDUKTIONSKOCHFELD
Title (fr)
PROCÉDÉ DE FONCTIONNEMENT D'UNE PLAQUE DE CUISSON À INDUCTION ET PLAQUE DE CUISSON À INDUCTION
Publication
Application
Priority
DE 102020207103 A 20200605
Abstract (en)
[origin: US2021385912A1] A method for operating an induction hob (100), wherein the induction hob (100) comprises: an inverter (1), which is supplied with a supply voltage (US), at least one capacitor (2, 3), and an induction heating coil (4), wherein the at least one capacitor (2, 3) and the induction heating coil (4) are interconnected such that they constitute an oscillating circuit (5), and wherein the inverter (1) is configured to generate a pulse-width modulated excitation voltage (UA) for the oscillating circuit (5) from the supply voltage (US), wherein the method comprises the following steps: a) generation of the pulse-width modulated excitation voltage (UA) having a predefined voltage characteristic, b) measurement of a resulting oscillating circuit current (iS), particularly by means of the induction heating coil (4), c) determination of electrical oscillating circuit parameters, according to the voltage characteristic of the pulse-width modulated excitation voltage (UA) and the measured oscillating circuit current (iS), d) n-times repetition of steps a) to c) using a different voltage characteristic of the excitation voltage (UA) for the determination of electrical voltage characteristic-dependent oscillating circuit parameters, and e) determination of operating variables of the induction hob (100) from voltage characteristic-dependent electrical oscillating circuit parameters.
IPC 8 full level
H05B 6/06 (2006.01)
CPC (source: EP KR US)
H05B 6/04 (2013.01 - US); H05B 6/062 (2013.01 - EP KR US); H05B 6/1245 (2013.01 - KR); H05B 2213/05 (2013.01 - EP)
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)
EP 3920661 A1 20211208; EP 3920661 B1 20230823; DE 102020207103 A1 20211209; ES 2964022 T3 20240403; KR 20210151711 A 20211214; PL 3920661 T3 20240219; US 11903114 B2 20240213; US 2021385912 A1 20211209
DOCDB simple family (application)
EP 21176540 A 20210528; DE 102020207103 A 20200605; ES 21176540 T 20210528; KR 20210073020 A 20210604; PL 21176540 T 20210528; US 202117303557 A 20210602