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. 28, 2015
Filed:
Sep. 14, 2012
Applicant:
John M. O'neil, Litchfield, CT (US);
Inventor:
John M. O'Neil, Litchfield, CT (US);
Assignee:
Hamilton Sundstrand Corporation, Windsor Locks, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B 19/40 (2006.01);
U.S. Cl.
CPC ...
G05B 19/40 (2013.01);
Abstract
Embodiments are directed to commanding, by a controller, a step in connection with a stepper motor. Further, embodiments include discharging a current in a coil of the stepper motor by transferring the current to a capacitor coupled to the coil responsive to the commanded step and driving a current in the coil. The driving of the current in the coil includes using charge stored on the capacitor during the discharging of the current in the coil.