LED lighting system

• US 10,652,979 B2
• Filed: 11/22/2019
• Issued: 05/12/2020
• Est. Priority Date: 02/25/2004
• Status: Active Grant

• Current Assignee: Lynk Labs, Inc.
• Original Assignee: Lynk Labs, Inc.
• Inventors: Miskin, Michael, Kottritsch, Robert L.
• Primary Examiner(s): King, Monica C
• Application Number:
  US16/693,155
• Publication Number:
  US 20200092967A1
• Time in Patent Office: 172 Days
• CPC Class Codes: H05B 45/00 Circuit arrangements for operating light-emitting diodes [LED]
• CPC Class Codes: H05B 45/10 Controlling the intensity of the light
• CPC Class Codes: H05B 45/14 using electrical feedback from LEDs or from LED modules
• CPC Class Codes: H05B 45/30 Driver circuits
• CPC Class Codes: H05B 45/37 Converter circuits
• CPC Class Codes: H05B 45/40 Details of LED load circuits
• CPC Class Codes: H05B 45/42 Antiparallel configurations
• CPC Class Codes: H05B 45/50 responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
• CPC Class Codes: Y02B 20/30 Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Abstract

An LED lighting system having at least one LED circuit and at least two circuits or drivers capable of receiving an AC voltage at a first frequency and having an output capable of driving the at least one LED circuit, wherein the output of each circuit or driver capable of driving the at least one LED circuit is provided to the at least one LED circuit through a circuit or sensor capable of permitting only a single output from the at least two circuits or drivers be provided to the at least one LED circuit.

Claims

1. An LED lighting device comprising:

an LED package comprising a plurality of LED chips electrically connected in series and power connection leads connected to respective input and output ends of the series connected LED chips;

wherein the LED chips comprise a phosphor coating to produce a change in a color or a quality of light emitted from the LED chips, wherein the LED chips, the power connection leads, and the phosphor coating are formed or mounted to a flexible substrate that is sufficiently flexible to be formed into a cylindrical shape;

an LED driver circuit comprising a bridge rectifier and a capacitor, the LED driver circuit configured to receive an AC voltage from a mains voltage power source and provide a DC voltage output to the LED package through the power connection leads; and

wherein the LED chips connected in series have a total forward voltage drop that matches the DC voltage output of the LED driver circuit.

2. The LED lighting device of claim 1, wherein the DC voltage output of the driver matches the AC voltage from the mains voltage power source.

3. The LED lighting device of claim 1, further comprising a switch having at least 3 positions that are selectable by a user.

4. The LED lighting device of claim 1, further comprising a data communication circuit and an antenna.

5. The LED lighting device of claim 4, wherein the data communication circuit and the antenna are encapsulated in a housing with the LED package and the LED driver circuit.

6. The LED lighting device of claim 1, wherein the LED package and the LED driver circuit are encapsulated in a housing.

7. An LED lighting system comprising:

a lighting device configured to be connected directly to a mains AC voltage power source, wherein the lighting device comprises;

an LED circuit comprising two or more LEDs connected together in series to match a forward voltage drop of the mains AC power source,

an LED driver circuit comprising a driver integrated circuit, a bridge rectifier, and a capacitor,

wherein the driver integrated circuit, the bridge rectifier, the capacitor, and the LEDs are all mounted on a single insulating substrate, and

wherein the LED driver circuit comprises an input configured to receive a first AC voltage from the mains AC voltage power source and to provide a DC voltage output to the LEDs; and

a first lens covering the lighting device.

8. The LED lighting system of claim 7, wherein the insulating substrate is a reflective substrate.

9. The LED lighting system of claim 7, further comprising a second lens covering the first lens.

10. The LED lighting system of claim 7, wherein the lighting device is dimmable.

11. The LED lighting system of claim 7, further comprising a switch having at least 3 positions that are selectable by a user.

12. The LED lighting system of claim 8, further comprising a data communication circuit and an antenna.

13. An LED lighting device comprising:

a plurality of LED packages connected in series, wherein each of the LED packages comprises a plurality of LED chips electrically connected in series and power connection leads connected to respective input and output ends of the series connected LED chips;

wherein the LED chips and the power connection leads are mounted to a glass substrate;

a phosphor coating on the LED chips and the glass substrate to produce a change in a color or a quality of light emitted from the LED chips; and

an LED driver circuit comprising a bridge rectifier and a capacitor, the LED driver circuit configured to receive an AC voltage from a mains voltage power source and provide a DC voltage output to the LED packages through the power connection leads.

14. The LED lighting device of claim 13, wherein the glass substrate is a reflective substrate.

15. The LED lighting device of claim 13, wherein the glass substrate comprises ceramic.

16. The LED lighting device of claim 13, wherein the series connected LED packages have a total forward voltage drop that matches the AC voltage from the mains voltage power source.

17. The LED lighting device of claim 13, wherein the AC voltage from the mains voltage power source matches the DC voltage output provided to the LED packages.

18. The LED lighting device of claim 13, further comprising a data communication circuit and an antenna.