Power Management Unit with Power Source Arbitration

• US 20100301771A1
• Filed: 07/07/2010
• Published: 12/02/2010
• Est. Priority Date: 04/14/2008
• Status: Active Grant

• Current Assignee: OSRAM Sylvania Inc. (Ams-Osram AG)
• Original Assignee: Digital Lumens, Inc. (Ams-Osram AG)
• Inventors: Chemel, Brian J., Kondo, Steve T., Johnston, Scott D., Piepgras, Colin
• Granted Patent: US 8,805,550 B2
• Time in Patent Office: Days
• US Class Current: 315/294
• CPC Class Codes: H05B 47/155 Coordinated control of two or more light sources
• CPC Class Codes: Y02B 20/40 Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

In embodiments of the present invention, a method and system is provided for designing improved intelligent, LED-based lighting systems. The LED based lighting systems may include fixtures with one or more of rotatable LED light bars, integrated sensors, onboard intelligence to receive signals from the LED light bars and control the LED light bars, and a mesh network connectivity to other fixtures.

Claims

1. A method, comprising:

powering a plurality of light emitting diode (LED) light bars with a power management unit;

taking information related to consuming power from each of a plurality of power sources; and

arbitrating among the plurality of power sources for powering the plurality of LED light bars.