LED lighting system
View Patent ↗LED lighting systems and methods of manufacture, which include one or more of the following: ( 1 ) a solid state active heat sink for cooling one or more LED chips; ( 2 ) a front end power supply providing high voltage to the active heat sink component; ( 3 ) a front end power supply that provides a relatively low voltage load to a plurality of LED chips; ( 4 ) a front end hybrid power supply with both a high and low voltage output, wherein the high voltage is at least 2kV higher than the low voltage output; ( 5 ) an over-mold encapsulating the front end components, wherein the over-mold is provided by a reaction injection molding process; ( 6 ) a digital micro-minor device (DMD) for providing pixilated light, color mixing, and intensity control; and ( 7 ) an optic having quantum dots (QDs), wherein the light output of the DMD activates for the QDs.
1. A method of manufacturing an LED lighting system, comprising:
mounting a front end power supply on a substrate;
extending electrical leads from the power supply;
over-molding the front end power supply with a reactive injection molding process; and
electrically coupling an extended electrical lead to one or more light-emitting diodes and to a solid state active heat sink, and further comprising: mounting a digital micro-mirror device controller to the substrate; extending a controller lead from the substrate; and after the over-molding step, electrically coupling the controller lead to a digital micro-mirror device.
2. The method of claim 1 , further comprising:
electrically coupling an extended electrical lead to a solid state active heat sink,
and wherein the over-molding material is substantially free of silicon-emitting particles.
3. The method of claim 2 , further comprising:
configuring the power supply to deliver at least two outputs.
4. The method of claim 1 , further comprising:
configuring the power supply to deliver a high voltage power to the active heat sink.
5. The method of claim 1 , further comprising:
configuring the power supply to deliver a low voltage power to the light-emitting diodes.
6. The method of claim 1 , further comprising:
configuring the power supply to provide a high voltage power and a low voltage power, wherein the high voltage power is 2 kV or more higher than the low voltage power.
7. The method of claim 1 , further comprising:
mounting an optic over the digital micro-mirror device.
8. The method of claim 7 , wherein the optic includes a plurality of quantum dots for producing polychromatic light.
9. The method of claim 1 , further comprising:
adding one or more additives to the over-molding process, wherein the additives are selected from the group consisting of: silicon carbide embedded beads, silicon carbide coated on a plastic/metal mesh, boron nitride, silicon nitride, aluminum oxide, low grade industrial diamonds, long carbon fibers, and any combination thereof.
10. The method of claim 9 , wherein the silicon carbide embedded beads have a particle size between about 60-80 microns.
11. The method of claim 1 , further comprising:
providing a coating on the over-mold to isolate the over-mold from the active heat sink.