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. 16, 2013
Filed:
Mar. 30, 2010
Applicants:
Roger Michael Dawe, Malmesbury, GB;
Andrew Charlton Clothier, Malmesbury, GB;
Inventors:
Roger Michael Dawe, Malmesbury, GB;
Andrew Charlton Clothier, Malmesbury, GB;
Assignee:
Dyson Technology Limited, Malmesbury, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 6/18 (2006.01); H02P 1/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of controlling an electric machine that includes exciting a winding of the electric machine in advance of zero-crossings of back emf by a fixed advance time over a range of speeds. Additionally, a control system for an electric machine, and a product incorporating the control system and electric machine.