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:
Jul. 15, 2014
Filed:
Apr. 20, 2011
Applicant:
Yang Liu, Fremont, CA (US);
Inventor:
Yang Liu, Fremont, CA (US);
Assignee:
Princeton Power Systems, Inc., Lawrenceville, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A switched resonant power converter applies AC to an induction motor. The power converter controls the magnitude and phase of the motor current, and tuning the stator flux accordingly in order to control the motor speed. A preprocessor operates on a speed command signal by getting the user speed command input to produce amplitude and phase-related signals for application to inputs of the power converter control.