Light emitting diode replacement lamp
First Claim
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1. A method of thermal management of an illumination device comprising a light-emitting diode (LED), the method comprising:
- (a) generating a regulated current from a source voltage;
(b) supplying the regulated current to the LED;
(c) generating a sense voltage based on (i) the regulated current and (ii) an LED temperature resulting from heat produced by the LED; and
(d) modifying the regulated current supplied to the LED based on the sense voltage, whereby the LED temperature is maintained within a non-destructive range of LED temperatures.
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Abstract
Thermal management and control techniques for light emitting diode and other incandescent replacement light technologies using a current controller are disclosed.
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Citations
24 Claims
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1. A method of thermal management of an illumination device comprising a light-emitting diode (LED), the method comprising:
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(a) generating a regulated current from a source voltage; (b) supplying the regulated current to the LED; (c) generating a sense voltage based on (i) the regulated current and (ii) an LED temperature resulting from heat produced by the LED; and (d) modifying the regulated current supplied to the LED based on the sense voltage, whereby the LED temperature is maintained within a non-destructive range of LED temperatures. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A thermal-management system for an illumination device comprising a light-emitting diode (LED), the system comprising:
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means for generating a regulated current from a source voltage; means for supplying the regulated current to the LED; means for generating a sense voltage based on (i) the regulated current and (ii) an LED temperature resulting from heat produced by the LED; and means for modifying the regulated current supplied to the LED based on the sense voltage, whereby the LED temperature is maintained within a non-destructive range of LED temperatures. - View Dependent Claims (19, 20, 21, 22, 23, 24)
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Specification