EXTERNAL MICROCONTROLLER FOR LED LIGHTING FIXTURE, LED LIGHTING FIXTURE WITH INTERNAL CONTROLLER, AND LED LIGHTING SYSTEM

• US 20100060194A1
• Filed: 11/13/2007
• Published: 03/11/2010
• Est. Priority Date: 11/14/2006
• Status: Abandoned Application

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Furry, Kevin, Peak, Eric, Sommerville, Charles
• Application Number:
  US12/447,014
• Publication Number:
  US 20100060194A1
• Time in Patent Office: Days
• US Class Current: 315/294
• CPC Class Codes: H05B 45/20 Controlling the colour of the light
• CPC Class Codes: H05B 45/325 Pulse-width modulation [PWM]
• CPC Class Codes: H05B 47/18 via data-bus transmission

Abstract

An LED lighting system (10) includes an LED lighting fixture (12) having at least one LED (14) and an external microcontroller (22, 28) for converting incoming lighting control data formatted according to the DMX512 standard to pulse-width modulated lighting control signals for input to the LED (14). The external microcontroller (22, 28) is preferably located inside a cable connector (20) adapted for releasably connecting a power cable (18) to the LED lighting fixture (12).

Claims

1. An LED lighting system comprising:

an LED lighting fixture comprising at least one LED;

an external microcontroller for converting lighting control data to lighting control signals for input to the lighting fixture;

a cable for supplying lighting control data to the microcontroller; and

a cable connector for releasably connecting the cable to the LED lighting fixture wherein the external microcontroller is located inside the cable.

2. The LED lighting system of claim 1, further comprising an internal controller for further controlling the LED.

3. The LED lighting system of claim 1, wherein the connector is integrally connected to the cable.

4. The LED lighting system of claim 1, wherein the cable supplies power to the LED lighting fixture.

6. The LED lighting system of claim 1, wherein the LED lighting fixture comprises at least one red LED, at least one green LED and at least one blue LED.

7. The LED lighting system of claim 1, wherein the lighting control data supplied to the external microcontroller by the cable is serial data.

8. The LED lighting system of claim 7, wherein the lighting control data is formatted in accordance with the DMX512 standard.

9. The LED lighting system of claim 7, wherein the external microcontroller converts the lighting control data to pulse-width modulated lighting control signals.

5. (canceled)

10-18. -18. (canceled)