Method for operating an induction hob, - wherein the induction hob comprises: - an inverter, which is supplied with a supply voltage, - at least one capacitor (2, 3), and - an induction heating coil, - wherein the at least one capacitor (2, 3) 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 for the oscillating circuit from the supply voltage, - wherein the method comprises the following steps: a) generation of the pulse-width modulated excitation voltage having a predefined voltage characteristic, b) measurement of a resulting oscillating circuit current (iS), particularly through the induction heating coil, c) determination of electrical oscillating circuit parameters, according to the voltage characteristic of the pulse-width modulated excitation voltage 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 for the determination of electrical voltage characteristic-dependent oscillating circuit parameters, and e) determination of operating variables of the induction hob based on the electrical voltage characteristic-dependent oscillating circuit parameters, characterized in that - for the variation of the voltage characteristic of the excitation voltage, the supply voltage of the inverter is varied. - wherein the induction hob comprises: - an inverter, which is supplied with a supply voltage, - at least one capacitor (2, 3), and - an induction heating coil, - wherein the at least one capacitor (2, 3) 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 for the oscillating circuit from the supply voltage, - wherein the at least one capacitor (2, 3) 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 for the oscillating circuit from the supply voltage, - wherein the method comprises the following steps: a) generation of the pulse-width modulated excitation voltage having a predefined voltage characteristic, b) measurement of a resulting oscillating circuit current (iS), particularly through the induction heating coil, c) determination of electrical oscillating circuit parameters, according to the voltage characteristic of the pulse-width modulated excitation voltage 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 for the determination of electrical voltage characteristic-dependent oscillating circuit parameters, and e) determination of operating variables of the induction hob based on the electrical voltage characteristic-dependent oscillating circuit parameters, characterized in that a) generation of the pulse-width modulated excitation voltage having a predefined voltage characteristic, b) measurement of a resulting oscillating circuit current (iS), particularly through the induction heating coil, c) determination of electrical oscillating circuit parameters, according to the voltage characteristic of the pulse-width modulated excitation voltage 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 for the determination of electrical voltage characteristic-dependent oscillating circuit parameters, and e) determination of operating variables of the induction hob based on the electrical voltage characteristic-dependent oscillating circuit parameters, characterized in that - for the variation of the voltage characteristic of the excitation voltage, the supply voltage of the inverter is varied.