Modular Integrated Lighting Circuit

• US 20170019963A1
• Filed: 07/17/2015
• Published: 01/19/2017
• Est. Priority Date: 07/17/2015
• Status: Active Grant

• Current Assignee: Eaton Intelligent Power Limited (Eaton Corporation PLC.)
• Original Assignee: Cooper Technologies Company (Eaton Corporation PLC.)
• Inventors: Scarlata, Andrew Francis, Zhang, Hui
• Granted Patent: US 9,974,125 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: F21S 2/00 Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
• CPC Class Codes: F21S 8/033 the surface being a wall or like vertical structure, e.g. building facade
• CPC Class Codes: F21S 8/04 intended only for mounting on a ceiling or the like overhead structures F21S8/02 takes precedence; details of ceiling bases F21V21/03
• CPC Class Codes: F21V 21/00 Supporting, suspending, or attaching arrangements for lighting devices F21V17/00, F21V19/00 take precedence; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q, stands for supporting apparatus or articles in general F16M11/00; Hand grips
• CPC Class Codes: F21V 23/005 the substrate is supporting also the light source
• CPC Class Codes: F21V 23/02 the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
• CPC Class Codes: F21V 27/02 Cable inlets
• CPC Class Codes: F21V 29/74 with fins or blades
• CPC Class Codes: F21V 29/83 the elements having apertures, ducts or channels, e.g. heat radiation holes
• CPC Class Codes: F21Y 2113/00 Combination of light sources
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H05B 45/37 Converter circuits
• CPC Class Codes: Y02B 20/30 Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Abstract

A light emitting diode (LED) circuit board includes a power input configured to supply power, a driving circuit configured to convert power, and a light emitting circuit configured to generate light. The power input is configured to supply power to the driving circuit. The driving circuit is configured to provide proper power to the light emitting circuit. The light emitting circuit is configured to generate light with the power provided by the driving circuit. An LED circuit board including a driving circuit, a light emitting circuit, and a plurality of semiconductor switches electrically connected between the driving circuit and the light emitting circuit is also provided. Each of the plurality of semiconductor switches is configured to electrically connect and electrically disconnect power from the driving circuit to the light emitting circuit.

Claims

1. A light emitting diode (LED) circuit comprising:

a power input configured to supply power;

a driving circuit configured to convert power;

a light emitting circuit configured to generate light; and

a plurality of semiconductor switches electrically connected between the driving circuit and the light emitting circuit,

wherein the power input is configured to supply power to the driving circuit, the driving circuit is configured to convert the supplied power to a converted power and to provide the converted power to the light emitting circuit, and the light emitting circuit is configured to generate light with the converted power, and

wherein each of the plurality of semiconductor switches is configured to electrically connect or electrically disconnect the converted power from the driving circuit to the light emitting circuit based at least in part on a voltage of at least one of the power and the converted power.

2. The LED circuit of claim 1, wherein the driving circuit comprises a driver circuit, and wherein the light emitting circuit comprises a plurality of LEDs, wherein the driver circuit is configured to convert the supplied power to the converted power, and wherein the converted power is configured for driving the plurality of LEDs.

3. The LED circuit of claim 2, wherein the supplied power comprises an AC power and wherein the converted power comprises a DC power.

4. The LED circuit of claim 2, wherein the supplied power comprises a DC power and wherein the converted power comprises a DC power.

5. The LED circuit of claim 2, wherein the plurality of LEDs are comprised by a plurality of LED light strings.

6. The LED circuit of claim 2, wherein each of the plurality of semiconductor switches is electrically connected in parallel with at least one corresponding LED light string.

8. The LED circuit of claim 1, wherein the LED circuit is configured to operate at temperatures of greater than about 85°

C.

9. The LED circuit of claim 1, wherein the LED circuit is configured to comprise a predicted lifetime of more than about 60,000 hours.

10. The LED circuit of claim 1, wherein the driving circuit and the light emitting circuit are on different circuit boards.

7. (canceled)

11. A light emitting diode (LED) circuit board comprising:

a power input configured to supply power to a plurality of LEDs of the LED circuit board;

a power output configured to supply power to at least one other LED circuit board; and

a plurality of semiconductor switches for controlling supplied power to the plurality of LEDs based at least in part on a voltage of the supplied power,

wherein a quantity of the at least one other LED circuit boards is independent of a circuit for driving the LED circuit board and the at least one other LED circuit board.

13. LED circuit board of claim 11, further comprising a driving circuit i-s-configured to convert the supplied power to a converted power and provide the converted power to the at least some of plurality of LEDs when one or more of the plurality of semiconductor switches is electrically connected.

14. LED circuit board of claim 11, wherein the plurality of LEDs are formed in a plurality of LED light strings, and wherein each of the plurality of semiconductor switches is configured to at least one of electrically connect and electrically disconnect the converted power from the driving circuit to a corresponding one or more of the plurality of LED light strings.

16. LED circuit board of claim 13, wherein the driving circuit is configured to electrically connect in at least one of series and parallel to another driving circuit of another LED circuit board.

12. (canceled)

15. (canceled)