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:
Dec. 06, 2011
Filed:
Oct. 28, 2008
Laszlo S. Ilyes, Richmond Heights, OH (US);
Bruce Roberts, Mentor-on-the-Lake, OH (US);
Joseph G. Elek, North Ridgeville, OH (US);
Tony Aboumrad, Parma, OH (US);
Laszlo S. Ilyes, Richmond Heights, OH (US);
Bruce Roberts, Mentor-on-the-Lake, OH (US);
Joseph G. Elek, North Ridgeville, OH (US);
Tony Aboumrad, Parma, OH (US);
General Electric Company, Schenectady, NY (US);
Abstract
Systems and methods are disclosed that facilitate switching a lamp ballast between DALI and analog control states as a function of control state information stored prior to the ballast being powered of and control information received by an interface circuit for the ballast circuit. A depolarization circuit is coupled to the interface circuit and ensures consistent polarity across a rectifier circuit regardless of the polarity of two control wires coupled to a miswiring protection circuit in the interface circuit. In this manner, a single interface circuit provides dual 0-10V analog and DALI control for dimming a lighting device regardless of whether a wall-mounted controller coupled to the interface circuit is an analog or a DALI type controller, thereby mitigating a need to switch out a ballast circuit coupled to the lighting device when changing between DALI and analog type controllers.