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:
Sep. 02, 2014
Filed:
May. 08, 2012
John J. Trainor, Raleigh, NC (US);
James A. Mcbryde, Raleigh, NC (US);
Randall L. Powers, Raleigh, NC (US);
Joseph P. Chobot, Morrisville, NC (US);
John J. Trainor, Raleigh, NC (US);
James A. McBryde, Raleigh, NC (US);
Randall L. Powers, Raleigh, NC (US);
Joseph P. Chobot, Morrisville, NC (US);
Cree, Inc., Durham, NC (US);
Abstract
An emergency lighting module for providing emergency power to a solid state luminaire is provided. The emergency lighting module includes a control circuit configured to detect a line voltage, a first input configured to receive an input voltage from the solid state luminaire, and a bidirectional booster/charger circuit coupled to the microcontroller and configured to charge a battery using the input voltage. The bidirectional booster/charger circuit is further configured to provide an output voltage. The emergency lighting module is configured to provide the output voltage to the solid state luminaire in response to a reduction of the line voltage.