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:
Mar. 11, 2025
Filed:
Dec. 09, 2020
Applicant:
Lg Electronics Inc., Seoul, KR;
Inventors:
Dooyong Oh, Seoul, KR;
Seungbok Ok, Seoul, KR;
Kyunghoon Jung, Seoul, KR;
Byeongwook Park, Seoul, KR;
Assignee:
LG Electronics Inc., Seoul, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B 6/12 (2006.01); G01K 7/00 (2006.01); G01R 25/00 (2006.01); H05B 3/74 (2006.01); H05B 6/04 (2006.01);
U.S. Cl.
CPC ...
H05B 6/1209 (2013.01); G01K 7/00 (2013.01); G01R 25/005 (2013.01); H05B 3/74 (2013.01); H05B 6/04 (2013.01); H05B 2213/07 (2013.01);
Abstract
A cooking apparatus includes: a working coil, an inverter including a plurality of switching elements and configured to apply, by operating the plurality of switching elements, a resonant current of a predetermined frequency to the working coil, a phase detector configured to detect a phase difference between the resonant current and a voltage applied to an output terminal of the inverter, and a controller configured to calculate, based on the detected phase difference, a temperature of a target object that is placed above the working coil.