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:
Oct. 04, 2022
Filed:
Nov. 01, 2017
Lg Electronics Inc., Seoul, KR;
Bada Yoon, Seoul, KR;
LG ELECTRONICS INC., Seoul, KR;
Abstract
An induction heating cooker comprises a rectifying unit for rectifying an AC voltage from a power supply to a DC voltage and first and second switching units for switching to alternately apply the DC voltage from the rectifying unit to the working coil for driving the working coil. A device of sensing a cooking container in the induction heating cooker comprises a first current sensing unit configured to sense a first current flowing between the power supply and the rectifying unit, a second current sensing unit configured to sense a second current flowing to the working coil, and a controller configured to determine if the cooking container placed on the working coil is present based on the first and second currents.