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:
Jun. 15, 2004
Filed:
Sep. 26, 2002
Satoru Simizu, Pittsburgh, PA (US);
Y. Sean Cho, Pittsburgh, PA (US);
Arkady Margolin, Pittsburgh, PA (US);
Richard T. Obermeyer, Export, PA (US);
Suryanarayan G. Sankar, Pittsburgh, PA (US);
Advanced Materials Corporation, Pittsburgh, PA (US);
Abstract
A motor controller system ( ) for dc power source motors ( ) which includes a sensor device ( ) that operates to measure and generate a voltage signal from the motor current and the rate of change of said current, and a programmable input/output processor ( ) which receives voltage signals as input from the motor current, dc power source ( ) and/or motor ( ) and compares on or more of these voltage signals to one or more control parameters. Based upon these comparisons, the processor ( ) generates a pulse width modulation control signal, which triggers a switching mechanism ( ) and related interrupt service routing to make adjustments to the operational parameters of the motor by periodic interruption of the motor current.