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:
Apr. 23, 2024
Filed:
Oct. 18, 2019
The Vollrath Company, L.l.c., Sheboygan, WI (US);
Virginia Tech Intellectual Properties, Inc., Blacksburg, VA (US);
Jeremiah Kopiness, Saukville, WI (US);
Andrew Amrhein, Sheboygan, WI (US);
Jong-Woo Kim, Blacksburg, VA (US);
Moonhyun Lee, Blacksburg, VA (US);
Jih-Sheng Lai, Blacksburg, VA (US);
The Vollrath Company, L.L.C., Sheboygan, WI (US);
Virginia Tech Intellectual Properties, Inc., Blacksburg, VA (US);
Abstract
The present disclosure describes devices and methods for improving the power efficiency and control of an induction heating system. In particular, the induction heating system includes a series resonant bridge inverter circuit and a control circuit. The inverter circuit includes one or more induction coils that are structured to inductively couple to the cookware to heat the cookware and a current sensor structured to sense a coil current signal across the one or more inductor coils. In particular, the current sensor is structured to generate a positive sensed voltage signal corresponding to a positive portion of the coil current signal and a negative sensed voltage signal corresponding to a negative portion of the coil current. The control signal is structured to control switching of a first and a second set of switches based on the positive and negative sensed voltage signals.