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:
Nov. 29, 2016
Filed:
Dec. 23, 2014
Applicant:
Johnson Controls Technology Company, Holland, MI (US);
Inventors:
Russell W. Diamond, New Berlin, WI (US);
Gary A. Romanowich, Slinger, WI (US);
David R. Fuhr, Menomonee Falls, WI (US);
Assignee:
Johnson Controls Technology Company, Plymouth, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 7/00 (2016.01); H02P 7/29 (2016.01); H02P 29/00 (2016.01); H02P 29/02 (2016.01); H02H 7/08 (2006.01); H02H 7/085 (2006.01);
U.S. Cl.
CPC ...
H02P 7/29 (2013.01); H02H 7/0838 (2013.01); H02H 7/0852 (2013.01); H02P 7/04 (2016.02); H02P 29/0033 (2013.01); H02P 29/0044 (2013.01); H02P 29/02 (2013.01); H02P 29/027 (2013.01);
Abstract
A method for operating a direct current (DC) motor is shown and described. The method includes generating a first pulse width modulated (PWM) signal having a first duty cycle, providing the first PWM signal as a PWM DC output for the DC motor, and adjusting the first duty cycle to control a speed of the DC motor. The method further includes sensing an electric current output to the motor using a current sensor and, when the sensed current exceeds a threshold, holding the PWM DC output off.