Low Current LED Lighting System

摘要

A solar powered lighting system comprises a photovoltaic array coupled to a rechargeable battery and an LED array having a variable brightness output. A memory device contains a lighting profile for each day of a calendar year at a predetermined geophysical location on the surface of the earth, and includes a calendar of events including times of activation and deactivation of one or more LED arrays and brightness levels associated with each array for each event. A real time clock times the reading of the events by a controller in a control module for controlling the intensity of the LED array such that the LED array is energized at preselected times as determined by the real time clock and at preselected intensities based upon the lighting profile and includes a control module that consumes on average no more than 2 mA of current.

主权项

1. A solar powered lighting system comprising
A photovoltaic array coupled to a rechargeable battery An LED array powered by said battery and having a variable intensity brightness, A low power control module for determining said variable intensity brightness according to a predetermined lighting profile, said control module having a controller drawing on average no more than 2 milliamps of current.