ALTERNATING LIGHT EMITTING DIODE DEVICE

• US 20080169766A1
• Filed: 01/25/2007
• Published: 07/17/2008
• Est. Priority Date: 01/11/2007
• Status: Active Grant

• Current Assignee: Everlight Electronics Company Limited
• Original Assignee: Everlight Electronics Company Limited
• Inventors: Lin, Ying-Chu, Kuo, Hui-Ying
• Granted Patent: US 8,174,196 B2
• Time in Patent Office: Days
• US Class Current: 315/200R
• CPC Class Codes: H05B 45/00 Circuit arrangements for operating light-emitting diodes [LED]
• CPC Class Codes: H05B 45/40 Details of LED load circuits
• CPC Class Codes: Y02B 20/30 Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
• CPC Class Codes: Y10S 362/80 Light emitting diode

Abstract

An alternating light diode device is provided and includes a substrate, a rectifier and a light emitting diode. The rectifier, a bridge rectifier with four diodes, includes a first alternating terminal and a second alternating terminal receiving an alternating signal and a first electrode and a second electrode outputting a rectified signal. The light emitting diode is electrically connected with the first electrode and the second electrode. Furthermore, the rectifier and the light emitting diode are mounted on the hexagonal star-shaped aluminum substrate wherein the rectifier is arranged around the substrate.

Claims

1. An alternating light emitting diode (LED) device, comprising:

a substrate;

a rectifier, which is a bridge rectifier with a first diode, a second diode, a third diode and a fourth diode, mounted on the substrate and comprising a first alternating terminal and a second alternating terminal to receive an alternating signal, and a first electrode and a second electrode to output a rectified signal; and

a light emitting diode mounted on the substrate and electrically connected with the first electrode and the second electrode;

wherein the rectifier is arranged around the light emitting diode on the substrate.

2. The alternating light emitting diode device of claim 1, wherein the substrate has a center, and the light emitting diode is mounted in the center of the substrate.

3. The alternating light emitting diode device of claim 1, wherein the diodes of the rectifier are arranged on the substrate in a rhombus arrangement.

4. The alternating light emitting diode device of claim 3, wherein the rhombus arrangement has four corners, and the first electrode, the second electrode, the first alternating terminal and the second alternating terminal are respectively arranged at the corners of the rhombus arrangement.

5. The alternating light emitting diode device of claim 1, wherein the substrate is made of aluminum.

6. The alternating light emitting diode device of claim 5, wherein the substrate is a polygonal substrate.

7. The alternating light emitting diode device of claim 6, wherein the polygonal substrate comprises multiple indentations respectively defined in each interior angle of the polygonal substrate.

8. The alternating light emitting diode device of claim 7, wherein each of the indentations is a semicircle.