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:
Aug. 23, 2011
Filed:
Jul. 08, 2005
Malcolm Eric Sparey, Birmingham, GB;
Adrian Szabo, Solihull, GB;
Graham William White, Birmingham, GB;
Jeffrey Ronald Coles, Solihull, GB;
Connel Brett Williams, Leamington Spa, GB;
Yangsheng Chen, Sollihull, GB;
Malcolm Eric Sparey, Birmingham, GB;
Adrian Szabo, Solihull, GB;
Graham William White, Birmingham, GB;
Jeffrey Ronald Coles, Solihull, GB;
Connel Brett Williams, Leamington Spa, GB;
Yangsheng Chen, Sollihull, GB;
TRW Limited, , GB;
Abstract
A drive system for a motor having a rotor and a phase winding (a, b, c) comprises; a drive circuit including switch means associated with the winding a, b, c for varying the current passing through the winding; rotor position sensing means arranged to sense the position of the rotor; control means arranged to provide drive signals to control the switch means; a power input for connection to a power supply at a nominal voltage; and boost means in electric communication with the power input and power output, and controllable to boost the nominal voltage to a higher voltage for application to the winding.