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. 30, 2019
Filed:
Oct. 23, 2015
General Electric Company, Schenectady, NY (US);
Richard Dean Suel, II, Louisville, KY (US);
Haier US Appliance Solutions, Inc., Wilmington, DE (US);
Abstract
Systems and methods for controlling an induction motor are provided. In particular, data indicative of an alternating current voltage signal associated with an induction motor can be received. The alternating current voltage signal can be applied to the induction motor through a switching element coupled between a power source and the induction motor. A zero cross voltage signal can then be generated based at least in part on the data indicative of the alternating current voltage signal. A phase delay period for at least one half cycle period of the zero cross signal can then be determined. Operation of the induction motor can then be controlled by providing one or more control signals to the switching element causing the switching element to conduct current for one or more gating periods. Each gating period can be determined based at least in part on the phase delay period.