Light emitting diode illumination apparatus and power supply module thereof

• US 20100320908A1
• Filed: 03/15/2010
• Published: 12/23/2010
• Est. Priority Date: 06/18/2009
• Status: Abandoned Application

• Current Assignee: Young Green Energy Co.
• Original Assignee: Young Green Energy Co.
• Inventors: Hsu, Nien-Hui, Chien, Chao-Nan, Lee, Tung-Min, Chang, Ken-Chih
• Application Number:
  US12/659,590
• Publication Number:
  US 20100320908A1
• Time in Patent Office: Days
• US Class Current: 315/51
• CPC Class Codes: H05B 45/18 using temperature feedback
• CPC Class Codes: H05B 45/56 involving measures to prevent abnormal temperature of the LEDs
• CPC Class Codes: H05B 47/105 in response to determined parameters

Abstract

A power supply module is formed as a package body suitable to be assembled in a light emitting diode illumination apparatus. The power supply module includes a light emitting diode driver, a feedback control unit, a current converting unit, and a package material. The light emitting diode driver, the feedback control unit, and the current converting unit are packaged integrally by the package material. The current converting unit is suitable for supplying power to the light emitting diode driver and the feedback control unit. The feedback control unit is suitable to receive a feedback signal from a light source module disposed outside of the package body and provide an adjusting signal to the light emitting diode driver, so as to make the light emitting diode driver to adjust the magnitude of a control current and provide the control current to the light source module.

Claims

1. A power supply module, formed as a package body and adapted to be assembled in a light emitting diode illumination apparatus, comprising:

a light emitting diode driver, capable of providing a control current to a light source module disposed outside of the package body;

a feedback control unit, electrically connected to the light emitting diode driver and capable of receiving a feedback signal from the light source module;

a current converting unit, capable of providing power to the light emitting diode driver and the feedback control unit, wherein the feedback control unit is capable of receiving the feedback signal and providing an adjusting signal to the light emitting diode driver so as to make the light emitting diode driver adjust the control current; and

a package material, packaged outside of the light emitting diode driver, the feedback control unit, and the current converting unit.

2. The power supply module of claim 1, wherein the package material comprises a waterproof material.

3. The power supply module of claim 1, further comprising a power line and a signal line, wherein one end of the power line is connected to the light emitting diode driver, another end of the power line is disposed outside of the package body, and one end of the signal line is connected to the feedback control unit, another end of the signal line is disposed outside of the package body.

4. The power supply module of claim 1, wherein the light source module comprises a fan capable of providing the feedback signal to the feedback control unit, and the feedback control unit is capable of providing power to the fan.

5. The power supply module of claim 1, wherein the light source module comprises a temperature sensing unit, and the temperature sensing unit is capable of providing the feedback signal to the feedback control unit.

6. The power supply module of claim 1, wherein the feedback signal is selected from a group consisting of a fan error signal, a fan abnormal signal, and a temperature abnormal signal.

7. A light emitting diode illumination apparatus, comprising:

a package body, comprising a light emitting diode driver, a feedback control unit, and a current converting unit, wherein the current converting unit is capable of providing power to the light emitting diode driver and the feedback control unit; and

a light source module located outside of the package body, comprising a light emitting diode and a feedback signal generating portion, wherein the light emitting diode is electrically connected to the light emitting diode driver, and the feedback signal generation portion is adjacent to the light emitting diode and electrically connected to the feedback control unit,

wherein the feedback control unit is capable of receiving the feedback signal from the feedback signal generating portion and providing an adjusting signal to the light emitting diode driver in accordance with the feedback signal, and the light emitting diode driver is capable of receiving the feedback signal and providing a control current to the light emitting diode.

8. The light emitting diode illumination apparatus of claim 7, wherein the package body comprises a waterproof material.

9. The light emitting diode illumination apparatus of claim 7, wherein the feedback signal generation portion comprises a fan, and the fan has a waterproof structure and is electrically connected to the feedback control unit of the package body.

10. The light emitting diode illumination apparatus of claim 9, further comprising a first power line, a second power line, and a signal line, wherein one end of the first power line is connected to the light emitting diode driver, another end of the first power line is connected to the light emitting diode, one end of the second power line is connected to the feedback control unit, another end of the second power line is connected to the fan, and one end of the signal line is connected to the feedback control unit, another end of the signal line is connected to the fan.

11. The light emitting diode illumination apparatus of claim 7, wherein the feedback signal generation portion comprises a temperature sensing unit, and the temperature sensing unit is electrically connected to the feedback control unit of the package body.

12. The light emitting diode illumination apparatus of claim 11, further comprising a power line and a signal line, wherein one end of the power line is connected to the light emitting diode driver, another end of the power line is connected to the light emitting diode, and one end of the signal line is connected to the feedback control unit, another end of the signal line is connected to the temperature sensing unit.

13. The light emitting diode apparatus of claim 7, wherein the feedback signal is selected from a group consisting of a fan error signal, a fan abnormal signal, and a temperature abnormal signal.