Multi-voltage and multi-brightness LED lighting devices and methods of using same

Patent metadata

Field	Value
Publication number	US-12526892-B2
Application number	US-202519037770-A
Country	US
Kind code	B2
Filing date	Jan 27, 2025
Priority date	May 28, 2009
Publication date	Jan 13, 2026
Grant date	Jan 13, 2026

Abstract

An LED lighting device is disclosed. The example LED lighting device includes a first LED circuit having at least two LEDs connected in series and a second LED circuit having at least two LEDs connected in series. The LED lighting device also includes a switch having user selectable positions for providing user control to change a brightness of light that is emitted by the LED lighting device by individually selecting the first LED circuit and the second LED circuit.

First claim

The invention is claimed as follows:

1 . An LED lighting device comprising:
a first LED circuit having at least two LEDs connected in series; a second LED circuit having at least two LEDs connected in series; a resistor connected to at least one of the first LED circuit or the second LED circuit, a positioning of the resistor configured to cause the first LED circuit to emit light at a different level of brightness than the second LED circuit; and a switch connected to the first LED circuit and the second LED circuit, the switch configured to have user selectable positions for selecting between the first LED circuit and the second LED circuit for:
(a) changing a brightness level of the LED lighting device by individually selecting the first LED circuit and the second LED circuit, and
(b) individually electrically disconnecting the first LED circuit or the second LED circuit from a DC voltage power source,
wherein the LED lighting device is configured to be connected to and powered by a mains power source.

2 . The LED lighting device of claim 1 , wherein the first LED circuit is configured to emit a different color of light than the second LED circuit.

3 . The LED lighting device of claim 1 , wherein the positioning of the resistor causes the first LED circuit and the second LED circuit to be provided with different DC voltage levels.

4 . The LED lighting device of claim 1 , wherein the at least two LEDs of the first LED circuit and the at least two LEDs of the second LED circuit have a phosphor coating.

5 . The LED lighting device of claim 1 , wherein the switch has at least three positions to provide user control, and wherein at least one of the three positions of the switch increases the brightness level of light that is emitted by at least one of the first LED circuit or the second LED circuit when a user switches the switch.

6 . The LED lighting device of claim 1 , wherein at least one of the user selectable positions increases a level of DC voltage or current provided to one of the first LED circuit or the second LED circuit when a user switches the switch to the user selectable position.

7 . The LED lighting device of claim 1 , wherein switching of the switch provides at least two different levels of DC voltage or current via a driver integrated circuit to at least one of the first LED circuit or the second LED circuit.

8 . The LED lighting device of claim 7 , wherein the driver integrated circuit, the first LED circuit, and the second LED circuit are mounted on a PCB substrate that comprises a reflective material.

9 . The LED lighting device of claim 1 , further comprising a lighting device packaged assembly including a heat sink having a reflective material and a lens,
wherein the LED lighting device is integrated into the lighting device packaged assembly.

10 . The LED lighting device of claim 1 , wherein at least one of the user selectable positions of the switch increases the brightness level of the first LED circuit and decreases the brightness level of the second LED circuit.

11 . An LED lighting device comprising:
a first LED circuit having at least two LEDs connected in series; a second LED circuit having at least two LEDs connected in series; and a switch connected to the first LED circuit and the second LED circuit, the switch configured to have user selectable positions for selecting between the first LED circuit and the second LED circuit for: (a) changing a brightness level of the LED lighting device by individually selecting the first LED circuit and the second LED circuit, and (b) individually electrically disconnecting the first LED circuit or the second LED circuit from a DC voltage power source, wherein the LED lighting device is configured to be connected to and powered by a mains power source.

12 . The LED lighting device of claim 11 , wherein the first LED circuit is configured to emit a different color of light than the second LED circuit.

13 . The LED lighting device of claim 11 , further comprising a resistor connected to at least one of the first LED circuit or the second LED circuit, a positioning of the resistor configured to cause the first LED circuit to emit light at a different level of brightness than the second LED circuit.

14 . The LED lighting device of claim 12 , wherein the at least two LEDs of the first LED circuit and the at least two LEDs of the second LED circuit have a phosphor coating.

15 . The LED lighting device of claim 11 , wherein the switch has at least three positions to provide user control, and wherein at least one of the three positions of the switch increases the brightness level of light that is emitted by at least one of the first LED circuit or the second LED circuit when a user switches the switch.

16 . The LED lighting device of claim 11 , wherein at least one of the user selectable positions increases a level of DC voltage or current provided to one of the first LED circuit or the second LED circuit when a user switches the switch to the user selectable position.

17 . The LED lighting device of claim 11 , wherein switching of the switch provides at least two different levels of DC voltage or current via a driver integrated circuit to at least one of the first LED circuit or the second LED circuit.

18 . The LED lighting device of claim 17 , wherein the driver integrated circuit, the first LED circuit, and the second LED circuit are mounted on a PCB substrate that comprises a reflective material.

19 . The LED lighting device of claim 11 , further comprising a lighting device packaged assembly including a heat sink having a reflective material and a lens, wherein the LED lighting device is integrated into the lighting device packaged assembly.

20 . The LED lighting device of claim 11 , wherein at least one of the user selectable positions of the switch increases the brightness level of the first LED circuit and decreases the brightness level of the second LED circuit.

Assignees

• Lynk Labs Inc

Inventors

• Miskin Michael
• Kottritsch Robert L

Classifications

• H05B45/00

  Circuit arrangements for operating light-emitting diodes [LED] · CPC title

• H05B45/42

  Antiparallel configurations · CPC title

• Y10T29/49002

  Electrical device making · CPC title

• H05B45/30

  Driver circuits · CPC title

• H05B45/40 Primary

  Details of LED load circuits · CPC title