The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 13, 2024
Filed:
Jun. 02, 2021
E.g.o. Elektro-geraetebau Gmbh, Oberderdingen, DE;
Christian Egenter, Bretten, DE;
Max-Felix Mueller, Oberderdingen, DE;
E.G.O. ELEKTRO-GERAETEBAU GMBH, Oberderdingen, DE;
Abstract
A method for operating an induction hob (), wherein the induction hob () comprises: an inverter (), which is supplied with a supply voltage (US), at least one capacitor (), and an induction heating coil (), wherein the at least one capacitor () and the induction heating coil () are interconnected such that they constitute an oscillating circuit (), and wherein the inverter () is configured to generate a pulse-width modulated excitation voltage (UA) for the oscillating circuit () 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 (), 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 () from voltage characteristic-dependent electrical oscillating circuit parameters.