Combined serial/parallel light configuration
AssigneeManufacturing Resources International, Inc.
InventorsWilliam DUNN, David Williams
Life of this patent
Estimating the term…
Abstract
Exemplary embodiments connect lights in both series and parallel. The lights can be LEDs, organic light emitting diodes (OLED), field emitting display (FED), light emitting polymer (LEP), or organic electro-luminescence (OEL). Exemplary embodiments also mount the lights on a printed circuit board (PCB) which has low thermal resistivity between the surface containing the lights and the opposite surface. The opposite surface may be metallic, and air may be forced over this surface in order to cool the assembly.
Claims20
An illumination circuit comprising:
- a power source;
- a first group of lights comprising two or more lights connected in parallel;
- a positive conduction line connected to said power source and to said first group of lights;
- a second group of lights comprising two or more lights connected in parallel, wherein said second group of lights is connected in series to said first group of lights;
- and
- a negative conduction line connected to said second group of lights and returning to said power source.
An illumination assembly comprising:
- a metal core printed circuit board (PCB) comprising front and rear surfaces;
- a first group of lights mounted on the front surface of said PCB, said first group of lights comprising two or more lights connected in parallel;
- a second group of lights mounted on said front surface of said PCB, said second group of lights comprising two or more lights connected in parallel, wherein said second group of lights is connected in series to said first group of lights;
- a power source;
- a positive conduction line connected to said power source and to said first group of lights;
- and
- a negative conduction line connected to said second group of lights and returning to said power source.
An illumination assembly comprising:
- a metal core printed circuit board (PCB) comprising front and rear surfaces, wherein said rear surface is metallic and said front surface is highly reflective;
- a first group of LEDs mounted on the front surface of said PCB, said first group of LEDs comprising two or more LEDs connected in parallel;
- a second group of LEDs mounted on said front surface of said PCB, said second group of LEDs comprising two or more LEDs connected in parallel, wherein said second group of LEDs is connected in series to said first group of LEDs;
- a power source;
- a positive conduction line connected to said power source and to said first group of LEDs;
- and
- a negative conduction line connected to said second group of LEDs and returning to said power source.
Dependencies are inferred from the claim text.