REPLACEABLE LIGHTING FIXTURE COMPONENTS

• US 20140265930A1
• Filed: 03/13/2013
• Published: 09/18/2014
• Est. Priority Date: 03/13/2013
• Status: Active Grant

• Current Assignee: IDEAL Industries Lighting, LLC (Ideal Industries Incorporated)
• Original Assignee: CREE Incorporated (Wolfspeed, Inc.)
• Inventors: Harris, Michael James
• Granted Patent: US 9,967,928 B2
• Time in Patent Office: Days
• US Class Current: 315/307
• CPC Class Codes: F21S 8/026 intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling
• CPC Class Codes: F21V 23/008 the casing being outside the housing of the lighting device
• CPC Class Codes: F21V 23/0464 the sensor sensing the level of ambient illumination, e.g. dawn or dusk sensors
• CPC Class Codes: F21V 7/0008 providing for indirect lighting
• CPC Class Codes: F21Y 2103/10 comprising a linear array of point-like light-generating elements
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H05B 45/325 Pulse-width modulation [PWM]
• CPC Class Codes: H05B 45/355 Power factor correction [PFC]; Reactive power compensation
• CPC Class Codes: H05B 45/37 Converter circuits
• CPC Class Codes: H05B 47/199 Commissioning of light sources

Abstract

A lighting fixture includes a driver module and a separate light engine module, which has a solid-state light source and light engine memory. The driver module is electrically coupled to the light engine module and configured to drive the solid-state light source based on drive data. The drive data defines how the driver module should drive the solid-state light source to generate light with at least one defined lighting characteristic. The drive data may define or be used to identify the signal characteristics, such as drive currents, voltages, waveforms, and the like that must be provided by the driver module to drive the solid-state light source. The drive data is stored in the light engine memory of the light engine module, and the driver module is configured to retrieve the drive data from the light engine memory and drive the solid-state light source based on the drive data.

Claims

1. A driver module for coupling to a separate light engine module having a solid-state light source and light engine memory, the driver module comprising:

local memory; and

control circuitry associated with the local memory and adapted to;

retrieve drive data from the light engine memory of the light engine module; and

drive the solid-state light source of the light engine module based on the drive data.

2. The driver module of claim 1 wherein the control circuitry is further adapted to store the drive data in the local memory upon retrieving it from the light engine memory and access the drive data from the local memory for driving the solid-state light source.

3. The driver module of claim 2 wherein the control circuitry is further adapted to retrieve light engine data from the light engine memory and store the light engine data in the local memory.

4. The driver module of claim 3 wherein the light engine data comprises at least one of product information and identification information for the light engine module.

5. The driver module of claim 1 wherein prior to retrieving the drive data from the light engine memory, the control circuitry is further adapted to retrieve replacement data from the light engine memory and then retrieve the drive data when the replacement data indicates that the light engine module is a replacement light engine module.

6. The driver module of claim 5 wherein when the replacement data indicates that the light engine module is not the replacement light engine module, the control circuitry is further adapted to retrieve original drive data from the local memory and drive the solid-state light source of the light engine module based on the original drive data.

7. The driver module of claim 5 wherein if the drive data is retrieved from the light engine memory, the control circuitry is further adapted to set the replacement data to indicate that the light engine module is no longer the replacement light engine module.

8. The driver module of claim 1 wherein the local memory stores pairing information indicative of whether the driver module has been paired with the light engine module and prior to retrieving the drive data from the light engine memory, and the control circuitry is further adapted to retrieve the pairing information from the local memory and then retrieve the drive data when the pairing information indicates that the driver module is a replacement driver module.

9. The driver module of claim 8 wherein if the drive data is retrieved from the light engine memory, the control circuitry is further adapted to set the pairing information to indicate that the driver module is paired with the light engine module.

10. The driver module of claim 1 further comprising a user interface coupled to the control circuitry and wherein the control circuitry retrieves the drive data from the light engine memory upon receiving an input from the user interface.

11. The driver module of claim 10 wherein the user interface is a push button and the input corresponds to a user pressing the push button.

12. The driver module of claim 1 wherein the drive data defines at least one signal characteristic that is necessary when driving the solid-state light source to achieve a desired lighting characteristic.

13. The driver module of claim 1 wherein the drive data is used to identify at least one signal characteristic that is necessary when driving the solid-state light source to achieve a desired lighting characteristic.

14. The driver module of claim 1 wherein the solid-state light source is an LED-based light source.

15. The light engine module of claim 14 wherein the LED-based light source comprises a plurality of LEDs such that at least a first of the plurality of LEDs emits light of a first color, and at least a second of the plurality of LEDs emits light of a second color that is different than the first color.

16. The light engine module of claim 14 wherein the LED-based light source comprises at least one LED string in which each of the at least one of the LED strings comprises a plurality of LEDs.

17. The driver module of claim 1 wherein the driver module is a replacement driver module for a lighting fixture comprising the light engine module.

18. The driver module of claim 1 wherein the driver module is an original driver module provided in a lighting fixture comprising the light engine module.

19. The driver module of claim 1 wherein the control circuitry is configured to:

compare drive data in the local memory and the light engine memory;

store the drive data retrieved from the light engine memory as new drive data such that the new drive data that was retrieved form the light engine memory is used to drive the solid-state light source.

20. A light engine module for coupling to a separate driver module comprising:

a mounting structure;

a solid-state light source mounted on the mounting structure; and

light engine memory mounted on the mounting structure and accessible by the driver module once the driver module is electrically coupled to the light engine module.

21. The light engine module of claim 20 wherein the light engine memory comprises drive data configured to control how the driver module should drive the solid-state light source.

22. The light engine module of claim 21 wherein the drive data defines at least one signal characteristic that is necessary when driving the solid-state light source to achieve a desired lighting characteristic.

23. The light engine module of claim 21 wherein the drive data is used to identify at least one signal characteristic that is necessary when driving the solid-state light source to achieve a desired lighting characteristic.

24. The light engine module of claim 20 wherein the solid-state light source is an LED-based light source.

25. The light engine module of claim 24 wherein the LED-based light source comprises a plurality of LEDs such that at least a first of the plurality of LEDs emits light of a first color, and at least a second of the plurality of LEDs emits light of a second color that is different than the first color.

26. The light engine module of claim 24 wherein the LED-based light source comprises at least one LED string in which each of the at least one of the LED strings comprises a plurality of LEDs.

27. The light engine module of claim 20 wherein the light engine module is a replacement light engine module for a lighting fixture comprising the driver module.

28. The light engine module of claim 20 wherein the light engine module is an original light engine module provided in a lighting fixture comprising the driver module.

29. The light engine module of claim 20 wherein the light engine memory further comprises light engine data that provides at least one of product information and identification information for the light engine module.

30. The light engine module of claim 20 wherein the light engine memory further comprises replacement data that indicates that the light engine module is a replacement light engine module.

31. The light engine module of claim 20 wherein the mounting structure is a printed circuit board to which the driver module can be electrically coupled.

32. A lighting fixture comprising:

a location for a light engine module having a solid-state light source and light engine memory; and

a driver module comprising;

local memory; and

control circuitry associated with the local memory and adapted to;

retrieve drive data from the light engine memory of the light engine module; and

drive the solid-state light source of the light engine module based on the drive data.

33. The lighting fixture of claim 32 wherein the light engine module is separate from the driver module and is attached at the location, the light engine module comprising:

the solid-state light source; and

the light engine memory that is accessible by the driver module once the driver module is electrically coupled to the light engine module.

34. A lighting fixture comprising:

a location for a driver module; and

a light engine module comprising;

a mounting structure;

a solid-state light source mounted on the mounting structure and drivable by the driver module once the driver module is electrically coupled to the light engine module; and

light engine memory mounted on the mounting structure and accessible by the driver module once the driver module is electrically coupled to the light engine module.

35. The lighting fixture of claim 34 wherein the light engine memory comprises drive data configured to control how the driver module should drive the solid-state light source.

36. The lighting fixture of claim 35 wherein the solid-state light source is an LED-based light source.