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US 8,159,152 B1Granted
High-power LED lamp
OwnerNader Salessiinventor
Life of this patent
Estimating the term…
Abstract
A high-power light-emitting diode (LED) lamp has a plurality of units. Each unit includes an LED die and a thermo-electric cooling device coupled to the LED die. A power source supplies a fixed current to the thermo-electric cooling device wherein the fixed current is based on heat generated by the LED die in normal operation. Accordingly, the unit operates without a controller.
Claims21
A unit for a high-power LED lamp, comprising:
- an LED die;
- a thermo-electric cooling device coupled to the LED die;
- and
- a power source supplying a predetermined fixed current to the thermo-electric cooling device, wherein the predetermined fixed current is based on heat generated by the LED die in normal operation enabling the thermo-electric cooling device to operate without a controller;
- wherein the predetermined fixed current is based on junction temperature of the LED die.
2 more elements
A unit for a high-power LED lamp, comprising:
- an LED die;
- a thermo-electric cooling device coupled to the LED die;
- and
- a means for supplying a predetermined fixed current to the thermo-electric cooling device, wherein the predetermined fixed current is based on heat generated by the LED die in normal operation enabling the thermo-electric cooling device to operate without a controller;
- wherein the predetermined fixed current is based on junction temperature of the LED die.
2 more elements
A module for a high-power LED lamp, comprising:
- a conductive substrate;
- a plurality of LED units mounted on the conductive substrate wherein each LED unit of the plurality includes an LED die and a thermo-electric cooling device thermally coupled to the LED die;
- and
- means for supplying each thermo-electric cooling device with a predetermined fixed current, wherein the predetermined fixed current is based on a typical usage factor of the module, the means enabling the thermo-electric cooling device to operate without a controller;
- wherein the predetermined fixed current is based on junction temperature of the LED die.
2 more elements
A high power LED lamp, comprising:
- a plurality of LED modules configured to operate together to provide light, each module configured to be removable and replaceable, each module including:
- a conductive substrate;
- a plurality of LED units mounted on the conductive substrate wherein each LED unit of the plurality includes an LED die and a thermo-electric cooling device thermally coupled to the LED die;
- and
- means for supplying each thermo-electric cooling device with a predetermined fixed current, wherein the fixed current is based on a typical usage factor of the high power LED lamp, the means enabling the thermo-electric cooling device to operate without a controller;
- wherein the predetermined fixed current is based on junction temperature of the LED die.
3 more elements
Dependencies are inferred from the claim text.