LED lighting system

• US 10,051,703 B2
• Filed: 04/03/2017
• Issued: 08/14/2018
• Est. Priority Date: 02/25/2004
• Status: Active Grant

• Current Assignee: Lynk Labs, Inc.
• Original Assignee: Lynk Labs, Inc.
• Inventors: Miskin, Michael
• Primary Examiner(s): King, Monica C
• Application Number:
  US15/477,702
• Publication Number:
  US 20170273154A1
• Time in Patent Office: 498 Days
• CPC Class Codes: H05B 45/00 Circuit arrangements for operating light-emitting diodes [LED]
• CPC Class Codes: H05B 45/10 Controlling the intensity of the light
• CPC Class Codes: H05B 45/14 using electrical feedback from LEDs or from LED modules
• CPC Class Codes: H05B 45/30 Driver circuits
• CPC Class Codes: H05B 45/37 Converter circuits
• CPC Class Codes: H05B 45/40 Details of LED load circuits
• CPC Class Codes: H05B 45/42 Antiparallel configurations
• CPC Class Codes: H05B 45/50 responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
• CPC Class Codes: Y02B 20/30 Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Abstract

An LED lighting system having at least one LED circuit and at least two circuits or drivers capable of receiving an AC voltage at a first frequency and having an output capable of driving the at least one LED circuit, wherein the output of each circuit or driver capable of driving the at least one LED circuit is provided to the at least one LED circuit through a circuit or sensor capable of permitting only a single output from the at least two circuits or drivers be provided to the at least one LED circuit.

Claims

1. A LED lighting system comprising:

at least one a first LED circuit and a second LED circuit, each circuit comprising at least two LEDs connected in series;

a first driver circuit having an input for receiving a first AC voltage and frequency from an AC power source, the first driver having a first driver output and connected to the first LED circuit;

a second driver circuit having an input for receiving the first AC voltage and frequency from the AC power source, the second driver having a second driver output and connected to the second LED circuit; and

,

a controller for controlling the first driver circuit output and the second driver circuit output to the at least first and second LED circuits, the controller being configured to selectively provide the first driver output or the second driver output to the first and second LED circuits.

2. The LED lighting system of claim 1 wherein the controller is configured to sense and provide the first driver output to at least the first LED circuit.

3. The LED lighting system of claim 1 wherein the controller is configured to provide the second driver output to at least the second LED circuit if the first driver output is not sensed by the controller.

4. The LED Lighting System of claim 1 wherein the at least first and second LED circuits are made with multi-voltage LED packages.