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:
Jan. 29, 2019
Filed:
Oct. 02, 2017
Applicant:
Sevcon Limited, Gateshead, GB;
Inventor:
Peter Barrass, Gateshead, GB;
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
H02P 25/08 (2016.01); H02P 25/092 (2016.01); H02K 1/14 (2006.01); H02K 1/24 (2006.01); H02P 6/22 (2006.01);
U.S. Cl.
CPC ...
H02P 25/08 (2013.01); H02K 1/14 (2013.01); H02K 1/246 (2013.01); H02P 25/092 (2016.02); H02P 25/0925 (2016.02); H02P 6/22 (2013.01);
Abstract
A short pitched switched reluctance motor control apparatus comprising a voltage provider comprising a first coupling and a second coupling configured to be coupled to a phase winding of the switched reluctance motor for applying a voltage to drive current in the winding between the first and second coupling is disclosed. The apparatus further comprises a controller configured to apply a first voltage pulse to the first coupling, and to apply a second voltage pulse to the second coupling, wherein the start of the second pulse is delayed with respect to the start of the first pulse, and the end of the first pulse is delayed with respect to the end of the second pulse.