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:
Aug. 06, 2024
Filed:
Oct. 14, 2022
E.g.o. Elektro-geraetebau Gmbh, Oberderdingen, DE;
Christian Egenter, Bretten, DE;
Max-Felix Mueller, Oberderdingen, DE;
Mathias Bellm, Ubstadt-Weiher, DE;
Ulrich Waechter, Bruchsal, DE;
E.G.O. ELEKTRO-GERAETEBAU GMBH, Oberderdingen, DE;
Abstract
A method for operating a system having a device for the wireless transmission of energy to an electrical consumer by means of inductive coupling, and an electrical consumer, wherein the device has: a rectifier for generating a DC voltage from a line voltage, an inverter which is fed from the DC voltage and designed to generate a pulse-width-modulated activation signal, a power coil activated by the pulse-width-modulated activation signal, by means of which an alternating magnetic field can be generated to transmit the energy, a communication device designed to exchange data bi-directionally with the electrical consumer, and a regulator designed to regulate a power output by the inverter to a predetermined setpoint, and wherein the electrical consumer has: a switching device for changing the load impedance of the electrical consumer, and a communication device designed to exchange data bi-directionally with the device, wherein the method comprises the steps: synchronizing the operation of the device and the operation of the electrical consumer in such a way that, during a change in the load impedance of the electrical consumer, a transition frequency and/or a transition duty cycle of the pulse-width-modulated activation signal is/are set in such a way that voltages and/or currents induced in the electrical consumer do not exceed and/or fall below specified threshold values.