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.

Date of Patent:
Jul. 13, 2021

Filed:

Jul. 24, 2017
Applicant:

Haier Us Appliance Solutions, Inc., Wilmington, DE (US);

Inventors:

Victoria Steele, Louisville, KY (US);

Meher P. Kollipara, Louisville, KY (US);

Isaac Nam, Louisville, KY (US);

Assignee:

Haier US Appliance Solutions, Inc., Wilmington, DE (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B 6/06 (2006.01); H02M 5/458 (2006.01); G01R 23/02 (2006.01); H02M 7/48 (2007.01);
U.S. Cl.
CPC ...
H05B 6/062 (2013.01); G01R 23/02 (2013.01); H02M 5/4585 (2013.01); H02M 2007/4815 (2013.01);
Abstract

Systems and methods of quasi-resonant induction heating are provided. In particular, a method for evaluating the resonant frequency of a quasi-resonant induction cooking device can be provided. The method can include generating a startup pulse, receiving multiple feedback pulses from a resonant frequency feedback circuit, measuring a pulse width of each of the feedback pulses, calculating an average pulse width based upon the feedback pulses and determining the resonant frequency based at least in part on the average pulse width and a transfer function.


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