Compact LED device with cooling fan
AssigneeLEDLab, LLC
InventorScott Clifford
Life of this patent
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Abstract
A light emitting diode (LED) light bulb device can comprise a semiconductor chip comprising an input coupled to an AC power supply and a plurality of DC power outputs, a plurality of banks of LEDs coupled to the plurality of DC power outputs, and a fan coupled in parallel with a first of the plurality of banks of LEDs. The fan can be coupled to the first bank of LEDs through a filter comprising a diode, a resistor, and a capacitor. The capacitor can be coupled in parallel with the fan and be configured to supply a voltage to the fan while the plurality of banks of LEDs are alternately receiving power. The LED light bulb device can further comprising a WiFi receiver and include a height in a range between 2.5-6.875 centimeters and include a volume small enough to be enclosed in a standard j-box housing.
Claims18
A light emitting diode (LED) light bulb device, comprising:
- a semiconductor chip comprising an input coupled to an AC power supply and further comprising a plurality of DC power outputs;
- a plurality of banks of LEDs coupled to the plurality of DC power outputs;
- and
- a fan coupled in parallel with a first of the plurality of banks of LEDs;
- wherein the fan is coupled to the first bank of LEDs through a filter comprising a diode, a resistor, and a capacitor;
- and
- wherein the capacitor is coupled in parallel with the fan and is configured to supply a voltage in a range of 11.8-12.2 volts to the fan while the plurality of banks of LEDs are alternately receiving power from the semiconductor chip.
A light emitting diode (LED) light bulb device, comprising:
- an input configured to receive an AC power supply;
- a semiconductor chip coupled to the input and further comprising an output configured to supply DC power;
- an LED coupled to the output of the semiconductor chip;
- and
- a fan coupled in parallel with the LED;
- wherein the LED coupled to the output of the semiconductor chip is part of an array of LEDs comprising a number of banks of LEDs;
- and
- wherein the banks of LEDs are configured to alternately receive power from the semiconductor chip.
Dependencies are inferred from the claim text.