Light-emitting diode light source and light-emitting diode lamp

Inactive Publication Date: 2009-03-05
GE INVESTMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0024]In order to the make the aforementioned and other objects, features and advantages of the present i

Problems solved by technology

A voltage needed for driving the street lamp usually ranges between 4000 volts and 5000 volts, and a stabilizer is

Method used

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  • Light-emitting diode light source and light-emitting diode lamp
  • Light-emitting diode light source and light-emitting diode lamp
  • Light-emitting diode light source and light-emitting diode lamp

Examples

Experimental program
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Effect test

first embodiment

[0030]FIGS. 1 and 2 are schematic views illustrating a light emitting diode (LED) light source according to an embodiment of the present invention. Referring to FIG. 1, the LED light source 100 of the present invention includes an LED array 110, a power line communication (PLC) unit 120 and a current control unit 130. The current control unit 130 is electrically connected with a power line PL, the LED array 110 and the PLC unit 120. As shown in FIG. 1, the PLC unit 120 is connected with the power line PL, so as to receive a control signal transmitted from the power line PL. The PLC unit 120 controls the current control unit 130 to output a driving current to the LED array 110 according to the control signal, and thereby the LED array 110 can display determined brightness. Under some particular circumstances (e.g. an emergency), the PLC unit 120 even can control the current control unit 130 to output an over-driving current to the LED array 110, so that the LED array 110 can display ult

second embodiment

[0034]FIGS. 3A and 3B are schematic views illustrating an LED light source according to a second embodiment of the present invention. Referring to FIGS. 3A and 3B, since an LED array 110 according to the present embodiment is a COB type package, at least one of a PLC unit 120 and a current control unit 130 can be integrated in a carrier 110a (circuit board), and thereby the PCL unit 120 and the current control unit 130 are electrically connected to each other through the carrier 110a (circuit board). In other words, a designer can integrate the PLC unit 120 into the carrier 110a (circuit board) according to actual demands and dispose the current control unit 130 independently from the carrier 110a (circuit board). Of course, the designer can also integrate the current control unit 130 into the carrier 110a (circuit board) and dispose the PLC unit 120 independently from the carrier 110a (circuit board), as shown in FIG. 3B. Moreover, the designer can simultaneously integrate the PLC uni

third embodiment

[0036]FIG. 4 is a schematic view illustrating an LED light source according to a third embodiment of the present invention. Referring to FIG. 4, the LED light source 100b is similar to the LED light source 100 of the first embodiment. The main difference between the LED light source 100b and the LED light source 100 is that the LED light source 100b further comprises a wireless communication unit 140 and the wireless communication unit 140 is electrically connected with a PLC unit 120. According to an embodiment o the present invention, the wireless communication unit 140 includes an IEEE 802.15.4 ZigBee wireless communication unit or a worldwide interoperability for microwave access (WiMAX) wireless communication unit. Of course, the wireless communication unit 140 can also be a communication unit with other wireless communication protocols. The wireless communication unit 140 according to the present invention is not limited to the IEEE 802.15.4 ZigBee wireless communication unit or

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Abstract

A light-emitting diode (LED) light source suitable for being electrically connected with a power line is provided. The LED light source includes an LED array, a power line communication (PLC) unit and a current control unit. The PLC unit is electrically connected with the power line, and the current control unit is electrically connected with the LED array and the PLC unit.

Description

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Claims

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Application Information

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Owner GE INVESTMENT
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