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. 20, 2026
Filed:
Dec. 20, 2021
Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co., Ltd., Foshan, CN;
Lutian Zeng, Foshan, CN;
Chengbin Zhu, Foshan, CN;
Jun Lei, Foshan, CN;
Deyong Jiang, Foshan, CN;
Wenhua Liu, Foshan, CN;
Yunfeng Wang, Foshan, CN;
Abstract
A cookware detection circuit includes a control module configured to output a single pulse cookware detection signal to a half-bridge drive module of an electromagnetic heating device to drive a coil disk of the electromagnetic heating device to perform a resonant operation through the half-bridge drive module, and a pulse detection module configured to be connected to the coil disk and detect a resonant current of the coil disk and generate one or more pulse signals based on the resonant current of the coil disk. The control module is connected to the pulse detection module, and is further configured to count the one or more pulse signals and determine whether cookware is placed on the electromagnetic heating device based on a number of the one or more pulse signals.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile