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:
May. 30, 2006
Filed:
Mar. 31, 2005
Paul J. Vandrunen, Navarre, FL (US);
Steven K. Maurer, Pensacola, FL (US);
Paul J. VanDrunen, Navarre, FL (US);
Steven K. Maurer, Pensacola, FL (US);
Wayne-Dalton Corp., Mt. Hope, OH (US);
Abstract
An electric motor control having reduced electromagnetic interference (EMI) emissions includes a motor controller, a switch, and a power converter. The motor controller upon receipt of a control signal causes the switch to toggle between two or more states. In one state the power converter produces a half-wave rectified output (50% power) and in another state produces full-wave rectified output (100% power). Thus, when an electric motor is connected to the output of the power converter, the motor's speed and other operating parameters can be controlled by motor controller by changing the state of the switch.