LED lighting fixture

• US 8,525,440 B1
• Filed: 06/26/2012
• Issued: 09/03/2013
• Est. Priority Date: 03/09/2007
• Status: Expired due to Fees

• Current Assignee: Barco Incorporated (Barco NV)
• Original Assignee: Barco Incorporated (Barco NV)
• Inventors: Mika, Jason R., Varrin, Christopher, Hochman, Jeremy R., Ward, Matthew E.
• Primary Examiner(s): Le, Tung X
• Application Number:
  US13/533,825
• Time in Patent Office: 434 Days
• Field of Search: 315178-184, 315/185.R, 315/185.S, 315/250, 315/291, 315/294, 315/297, 315/312, 362/227, 362564-566, 362/640, 362/644, 362652-654, 362/806
• US Class Current: 315/291
• CPC Class Codes: H05B 45/30 Driver circuits
• CPC Class Codes: H05B 47/185 via power line carrier transmission

Abstract

An LED lighting system includes a power supply module, a data input line routed through the power supply module, an AC power input, and an LED fixture. The power supply module includes a power supply unit and an AC power cable. The AC power input is electrically connected to the power supply unit and the AC power cable. The LED fixture is electrically connected to an output of the power supply unit and the data input cable, and includes one or more LED assemblies disposed on a circuit board, a data signal output, and a power output. The AC power cable may be routed through the LED fixture.

Claims

1. A method of transmitting data and power within an LED lighting system comprising:

receiving an AC power input and a data input signal at a power supply module;

splitting the AC power input into an AC power cable and an AC power signal;

connecting the AC power signal to a power supply unit disposed within the power supply module;

generating a low voltage power signal from the AC power signal with the power supply unit;

connecting the AC power cable, the low voltage power signal, and the data input signal to an LED fixture;

receiving the low voltage power signal and the data input signal at a circuit board disposed within the LED fixture, wherein the circuit board comprises an LED assembly disposed thereon; and

powering and controlling the LED assembly with the low voltage power signal and the data signal.

2. The method of claim 1 comprising:

amplifying the data signal with the power supply unit; and

transmitting the data signal to another power supply module.

3. The method of claim 1 comprising:

amplifying the data signal with the power supply unit; and

transmitting the data signal to another LED fixture.

4. The method of claim 1 comprising:

routing the AC power cable through the LED fixture; and

connecting the AC power cable to another power supply module.

5. The method of claim 1 comprising:

routing the AC power cable through the LED fixture; and

connecting the AC power cable to another LED fixture.

6. The method of claim 1 comprising:

enclosing the power supply module in a first enclosure; and

enclosing the circuit board comprising the LED assembly circuit board in a separate enclosure, separate from the first enclosure.

7. The method of claim 1 wherein there is no visible cabling between the power supply module and the LED assembly.

8. A method of transmitting data and power within an LED lighting system comprising:

receiving an AC power input, a low voltage power signal, and a data signal at a power supply module;

connecting the AC power input and the low voltage power signal to a power supply unit disposed within the power supply module;

splitting the AC power input into an AC power cable and an AC power signal;

powering the power supply unit with the AC power signal;

amplifying the low voltage power signal with the power supply unit;

connecting the AC power cable, the low voltage power signal, and the data signal to an LED fixture;

receiving the low voltage power signal and the data signal at a circuit board disposed within the LED fixture, wherein the circuit board comprises an LED assembly disposed thereon; and

powering and controlling the LED assembly with the low voltage power signal and the data signal.

9. The method of claim 8 comprising:

passing the data signal through LED fixture unaltered.

10. The method of claim 8 comprising:

enclosing the power supply module in a first enclosure that is separate from a second enclosure of the LED fixture.

11. The method of claim 10 comprising:

coupling the first enclosure to the second enclosure without using cabling between the enclosures.

12. The method of claim 10 wherein the first enclosure comprises output connections for the AC power cable, low voltage power signal, and data signal that couple to corresponding input connections of the second enclosure.

13. The method of claim 8 wherein the AC power cable is electrically isolated from the circuit board, the low voltage power signal, and the data signal.

14. The method of claim 8 wherein the data signal is electrically isolated from the power supply unit and the AC power cable.

15. The method of claim 8 comprising:

connecting the AC power cable, the low voltage power signal, and the data signal to a second LED fixture;

receiving the low voltage power signal and the data signal at a second circuit board disposed within the second LED fixture, wherein the second circuit board comprises a second LED assembly disposed thereon; and

powering and controlling the second LED assembly with the low voltage power signal and the data signal.

16. The method of claim 15 wherein the low voltage power signal is connected to the first and second LED fixtures without passing through any LEDs.

17. The method of claim 15 wherein the low voltage power output is DC power.

18. The method of claim 8 wherein the LED fixture is an extrusion LED tube fixture.

19. The method of claim 8 wherein there are at least two LED fixtures.

20. The method of claim 8 wherein the power supply module and the LED fixture are electrically coupled.

21. A system of transmitting data and power within an LED lighting system comprising:

a power supply module having an AC power input and a data input signal,

wherein the AC power input is split into an AC power cable and an AC power signal,

the AC power signal is connected to a power supply unit disposed within the power supply module, and

the power supply unit generates a low voltage power signal from the AC power signal;

an LED fixture connected to the AC power cable, the low voltage power signal, and the data input signal; and

a circuit board, having the low voltage power signal and the data input signal disposed within the LED fixture, wherein the circuit board comprises an LED assembly disposed thereon, and

the low voltage power signal and the data signal power control the LED assembly.

22. The system of claim 21 wherein the power supply unit amplifies the data signal and

the data signal is transmitted to another power supply module.

23. The system of claim 21 wherein the power supply unit amplifies the data signal and

the data signal is transmitted to another LED fixture.

24. The system of claim 21 wherein the AC power cable is routed through the LED fixture and connected to another power supply module.

25. The system of claim 21 wherein the AC power cable is routed through the LED fixture and connected to another LED fixture.

26. The system of claim 21 wherein

the power supply module is enclosed in a first enclosure;

and

the circuit board comprising the LED assembly circuit board is enclosed in a separate enclosure, separate from the first enclosure.

27. The system of claim 21 wherein there is no visible cabling between the power supply module and the LED assembly.

28. A system of transmitting data and power within an LED lighting system comprising:

an AC power input;

a low voltage power signal;

a data signal at a power supply module;

a power supply unit, disposed within the power supply module, connected to the AC power input and the low voltage power signal;

an AC power cable;

an AC power signal wherein the AC power input is split into the AC power cable and the AC power signal,

the power supply unit is powered with the AC power signal, and

the low voltage power signal is amplified with the power supply unit; and

an LED fixture connected to the AC power cable, the low voltage power signal, and the data signal comprising;

receiving the low voltage power signal and the data signal at a circuit board disposed within the LED fixture, wherein the circuit board comprises an LED assembly disposed thereon, and

powering and controlling the LED assembly with the low voltage power signal and the data signal.

29. The system of claim 28 comprising:

passing the data signal through the LED fixture unaltered.

30. The system of claim 28 comprising:

a first enclosure encloses the power supply module; and

a second enclosure, separate from the first enclosure, encloses the LED fixture.

31. The system of claim 30 wherein the first enclosure is coupled to the second enclosure without using cabling between the enclosures.

32. The system of claim 30 wherein the first enclosure comprises output connections for the AC power cable, low voltage power signal, and data signal that couple to corresponding input connections of the second enclosure.

33. The system of claim 28 wherein the AC power cable is electrically isolated from the circuit board, the low voltage power signal, and the data signal.

34. The system of claim 28 wherein the data signal is electrically isolated from the power supply unit and the AC power cable.

35. The system of claim 28 comprising:

a second LED fixture connected to the AC power cable, the low voltage power signal, and the data signal; and

a second circuit board disposed within the second LED fixture receives the low voltage power signal and the data signal, wherein the second circuit board comprises a second LED assembly disposed thereon, and

the low voltage power signal and the data signal powers and controls the second LED assembly.

36. The system of claim 35 wherein the low voltage power signal is connected to the first and second LED fixtures without passing through any LEDs.

37. The system of claim 35 wherein the low voltage power output is DC power.

38. The system of claim 28 wherein the LED fixture is an extrusion LED tube fixture.

39. The system of claim 28 wherein there are at least two LED fixtures.

40. The system of claim 28 wherein the power supply module and the LED fixture are electrically coupled.