Networkable controllers for LED lighting

• US 7,821,212 B2
• Filed: 04/12/2006
• Issued: 10/26/2010
• Est. Priority Date: 04/12/2005
• Status: Active Grant

• Current Assignee: Hayward Industries, Inc.
• Original Assignee: J & J Electronics, Inc.
• Inventors: Wray, Donald L.
• Primary Examiner(s): Owens; Douglas W
• Assistant Examiner(s): Kim; Jae K
• Application Number:
  US11/403,567
• Publication Number:
  US 20060244622A1
• Time in Patent Office: 1,658 Days
• Field of Search: 315/312, 315/149, 315/210, 315/291, 315/294, 315/362, 315/185, 362/103, 362/104, 362/105, 362/106, 362/108, 362/800, 362/806, 362/811, 362/227, 362/228, 362/231
• US Class Current: 315/312
• CPC Class Codes: G09F 13/22 electroluminescent electroluminescent light sources per se H05B33/00
• CPC Class Codes: G09F 9/33 being semiconductor devices, e.g. diodes
• CPC Class Codes: H05B 45/30 Driver circuits
• CPC Class Codes: Y10S 362/80 Light emitting diode
• CPC Class Codes: Y10S 362/811 Psychedelic lighting

Abstract

LED controller devices (e.g., color changing modules) that may be connected to an LED fixture (e.g., an LED light strip or series of LED light strips) having multicolored LED lights or LED'"'"'s which otherwise vary in intensity, color, brightness, etc. In some embodiments, the LED light strips may incorporate red/green/blue (RGB) LEDs or white/warm white/amber (WWA) LEDs. This LED controller device operates to vary the colors emitted by the LED lights in accordance with desired programs, colors, tones, light shows, etc. The controller devices of this invention may be used in a stand alone LED lighting fixture of part of a network, such as a network that uses a form of RS-485 architecture known as a “Digital Multiplexed Interface” (DMX) as frequently used for control of lighting.

Claims

1. An LED strip lighting system comprising:

an LED controller comprising a) a housing member;

b) a circuit board positioned on, in line with or in the housing member, said circuit board having an integrated circuit that is adapted to drive red, green, blue LEDs, said integrated circuit including first, second and third non-phase-locked, analog oscillators;

c) a first connector at a first location; and

d) a second connector at a second location;

at least a first LED light strip having red, green, blue LEDs connected to the first connector; and

a power source connected to the second connector;

wherein the speed of each oscillator independently causing the oscillators to emit three continuous, out-of-phase, linear ramps which modulate the color and brightness of light emitted by each LED over a continuous, variable range between full on and full off, and wherein the slowest of the three oscillators controls the red LEDs, thereby producing a smooth analog color wash of randomly varying colors formed by the varying combinations of red, green, and blue light emitted from the LEDs, without digital to analog conversion and post integration.

2. A system according to claim 1 having a standardized voltage level that is about 0.5V full off to about 5.0 Volts full on.

3. A system according to claim 1 wherein the oscillation of the first oscillator oscillates at a rate that differs from the rate or rates at which the second and third oscillators oscillate gives rise to skewed voltage levels that cause the LEDs on the first LED light strip to emit light in varied combinations of color.

4. A system according to claim 3 wherein the LEDs comprise red-green-blue LEDs which capable of alternately emit emitting red, green and blue light and wherein the controller causes the light strip to produce different colors of light by causing the red-green-blue LEDs to emit different combinations of red, green and blue light.

5. A system according to claim 4 wherein the first oscillator causes the LEDs to produce red light.

6. A system according to claim 3 wherein the LEDs on the first LED light strip comprise white/warm or white/amber LEDs and wherein the first oscillator causes the LEDs to produce amber light.

7. A system according to claim 1 wherein the controller is of substantially the same width as the first LED light strip to which it is connected.

8. A system according to claim 1 further comprising:

a second LED controller comprising a) a housing member;

b) a circuit board positioned on, in line with or in the housing member, said circuit board having an integrated circuit that is adapted to drive multicolored LEDs, said integrated circuit including first, second and third oscillators;

c) a first connector at a first location; and

d) a second connector at a second location;

a second LED light strip having multicolored LEDs connected to the first connector of the second controller; and

the second connector of the second controller being connected to the first LED light strip to receive power from the first LED light strip.

9. A system according to claim 1 wherein the first and second oscillators are faster than the third oscillator, thereby imparting a rhythm effect to light emitted from the light strip.