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:
Sep. 10, 2002
Filed:
May. 18, 2000
Peter Kershaw, London, CA;
Andrew Lakerdas, London, CA;
Marek Horski, London, CA;
John Makaran, London, CA;
Siemens Automotive Inc., Mississauga, CA (US);
Abstract
An electric motor includes a motor housing defining an internal cavity A brush card assembly , a commutator and an armature assembly are provided in the cavity The commutator cooperates with the brush card assembly to resupply electric current to the armature assembly Permanent magnet structure is provided in the housing to generate a magnetic field to cause rotation of the armature assembly A FET is mounted with respect to the housing so as to be in heat exchange relation therewith. A gate terminal G of the FET is constructed and arranged to receive pulse width modulation output from an electronic control unit which is remote from the motor so as to enable able the motor to operate at more than one speed. A method of integrating a FET in a motor is also provided.