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. 28, 2019
Filed:
Apr. 14, 2017
Hubbell Incorporated, Shelton, CT (US);
John Lane, Simpsonville, SC (US);
Allen George Cyr, Greenville, SC (US);
Hubbell Incorporated, Shelton, CT (US);
Abstract
An emergency lighting system includes an input, a charging circuit, an auxiliary power supply, a plurality of lights, a driver, and a controller. The input is configured to receive a line voltage. The charging circuit is configured to receive the line voltage and output a charging voltage. The auxiliary power supply is configured to receive the charging voltage. The plurality of lights include a first group of lights and a second group of lights. The driver is configured to provide power to the plurality of lights. The controller is configured to monitor the line voltage, compare the line voltage to a threshold, control the driver to provide power to the first group of lights and the second group of lights when the input voltage is above the threshold, and provide power to the second group of lights when the input voltage is below the threshold.