Hybrid Power Architecture for Controlling a Lighting System

• US 20150021988A1
• Filed: 07/20/2013
• Published: 01/22/2015
• Est. Priority Date: 07/20/2013
• Status: Active Grant

• Current Assignee: Signify Holding B.V. (Signify N.V.)
• Original Assignee: Lunera Lighting, Incorporated
• Inventors: Zhang, John X., Barnetson, Donald
• Granted Patent: US 9,468,046 B2
• Time in Patent Office: Days
• US Class Current: 307/23
• CPC Class Codes: H02J 9/061 for DC powered loads
• CPC Class Codes: H05B 45/00 Circuit arrangements for operating light-emitting diodes [LED]
• CPC Class Codes: H05B 45/31 Phase-control circuits

Abstract

A hybrid power architecture for lighting system that physically separates the conversion of AC-DC constant voltage power from the conversion of DC-DC constant current needed to drive the LEDs. The hybrid power architecture comprises a power converter to generate DC volt power, a battery backup unit for providing backup in the event of power failure and control architecture for controlling the intensity of the lighting system.

Claims

1. A hybrid power architecture for controlling a lighting network in an area comprising:

a plurality of LED luminaire;

a controller mounted on the plurality of LED luminaire for varying the current input to the LED luminaire;

a power supplying unit having a power converter for generating a DC volt power, a battery connected to the power supplying unit, a battery charging circuit, a boost circuit to boot battery output and to generate a backup signal in the event of power outage;

a multi-conductor cable to transfer the DC volt power, the backup signal and a sensor signal to the controller on the plurality of LED luminaire.

2. The hybrid power architecture of claim 1 wherein the controller varies the current in range of 1% to 100%.

3. The hybrid power architecture of claim 1 wherein the DC volt power generated by the power converter is less than 60 Volt DC.

4. The hybrid power architecture of claim 1 wherein the AC main power is 100V-277V AC power.

5. The hybrid power architecture of claim 1 wherein the battery can be connected externally or internally.

6. The hybrid power architecture of claim 1 wherein the boost circuit boost the battery output to 12V-48V DC in the event of power outage.

7. The hybrid power architecture of claim 1 wherein the backup signal generated by the boost circuit is 10V DC signal.

8. The hybrid power architecture of claim 1 wherein the multi-conductor cable is Cat5 or cat6 cable.

9. The hybrid power architecture claim 1 wherein the controller vary the current to 10 percent on receiving the backup signal.

10. The hybrid power architecture of claim 1 wherein the sensor signal reflects the intensity of light required.

12. The power supplying unit of claim 10 wherein the power supplying unit further comprises means for reducing electromagnetic interference.

13. The power supplying unit of claim 10 wherein the power supplying unit further comprises means for automatic power factor control.

14. The power supplying unit of claim 10 wherein the control signal determines the intensity of light required in the area.

15. The power supplying unit of claim 10 wherein the DC volt power is in range of 12V to 48V DC.

16. The power supplying unit of claim 10 wherein the control signal is 10 Volt DC signal.

17. The power supplying unit of claim 10 wherein the port of the multi-port outlet is adaptable to receive RJ45 connector.

18. The power supplying unit of claim 10 wherein the multi-port outlet output the Class-2 compliance power and sensor signal.

19. The power supplying unit of claim 10 wherein the port on multi-port outlet have two indicators for fault detection and positive connection detection.

11. A power supply unit for controlling a lighting system, or a multi-output battery backed up power supply system for a lighting system, or a power supply unit for sending power and a dimming control signal to a LED array comprising:

an input port to receive AC main supply, and a line for connecting a battery;

a power converter to convert the AC main into a DC volt power, the said DC volt power is used to illuminate the lighting system;

a relay switch connected to the AC main supply such that the said relay switch activates the battery power in the event of AC main supply failure;

a battery backup unit to generate a control signal when the system is on the battery power;

a charger to charge the battery;

a boost circuit to boost the battery output to the DC volt power;

a multi-port outlet for outputting the DC volt power, and the control signal, each port of the said multi-port outlet is adaptable to receive class 2 multi-conductor cable.