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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.:

US 12532388 B1

PDFFull Text
Date of Patent:
Jan. 20, 2026

Filed:

Nov. 30, 2020

Method and system to control a qr-inverter in a induction cooking appliance

Applicant:

Electrolux Appliances Aktiebolag, Stockholm, SE;

Inventors:

Emanuel Urgese, Forli, IT;

Massimo Nostro, Forli, IT;

Alex Viroli, Forli, IT;

Massimo Zangoli, Forli, IT;

Filippo Martini, Forli, IT;

Fabio Angeli, Forli, IT;

Assignee:

ELECTROLUX APPLIANCES AKTIEBOLAG, Stockholm, SE;

Attorney:

Chrisman Gallo Tochtrop LLC

Primary Examiner:

Quang T Van

Int. Cl.
CPC ...
H05B 6/12 (2006.01); H02M 7/523 (2006.01); H05B 6/06 (2006.01);
U.S. Cl.
CPC ...
H05B 6/1254 (2013.01); H02M 7/523 (2013.01); H05B 6/065 (2013.01);
Abstract

Method to control a quasi-resonant inverter () in an induction cooking appliance () provided with an induction heating coil (). A switching device () is electrically connected to the induction heating coil () by a node () having a first voltage (VC(t)) which is indicative of the voltage across the power switching device (). The method includes: providing to the switching device () an enabling signal (K) comprising a plurality of pulses, in order to switch-on and switch-off the switching device () for a switch-on period (tON) and a switch-off period (tOFF), determining a second voltage (VCmin) indicative of the minimum value of the first voltage (VC(t)) during the switch-off period (tOFF), regulating the switch-off period (tOFF) based on the second voltage (VCmin), and regulating the enabling signal (K) based on the regulated switch-off period (tOFF).

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Urgese, Emanuel. (2026). Method and system to control a qr-inverter in a induction cooking appliance (U.S. Patent No. 12532388). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12532388

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