AC LIGHT EMITTING DIODE AND AC LED DRIVE METHODS AND APPARATUS

• US 20200120778A1
• Filed: 11/22/2019
• Published: 04/16/2020
• Est. Priority Date: 02/25/2004
• Status: Active Grant

• Current Assignee: Lynk Labs, Inc.
• Original Assignee: Lynk Labs, Inc.
• Inventors: Miskin, Michael, Andersen, James N., Kottritsch, Robert L.
• Granted Patent: US 10,687,400 B2
• Time in Patent Office: Days
• CPC Class Codes: H05B 45/10 Controlling the intensity of the light
• 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: H05B 47/20 Responsive to malfunctions or to light source life; for protection
• 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 device for use with an AC voltage power source configured such that at least one LED emits light during a positive phase of power provided from an AC power supply and at least one LED emits light during the negative phase of power provided from an AC power supply. The LED device includes a first power connection lead and a second power connection lead, both leads capable of being connected to and receiving power from an AC power supply.

Claims

1. A lighting system comprising:

a data communication circuit comprising an LED circuit and an antenna;

wherein the LED circuit comprises a plurality of LEDs connected in series, parallel, or opposing parallel;

wherein the LED circuit and the antenna are integrated in a package;

wherein the data communication circuit is integrated into a lighting device;

wherein the lighting device is adapted to be connected to a socket;

wherein the lighting device is configured to transmit data signals to or receive data signals from at least one telecommunications device; and

wherein the telecommunications device comprises a circuit configured to detect human touch via capacitive sensing.

2. The lighting system of claim 1, wherein the package comprises a reflective material.

3. The lighting system of claim 1, further comprising the telecommunications device.

4. The lighting system of claim 1, wherein the telecommunications device is portable.

5. The lighting system of claim 4, wherein the portable telecommunications device further comprises at least one OLED, and wherein the portable telecommunications device is configured to receive power wirelessly.

6. The lighting system of claim 1, further comprising a current limiting device coupled to the LED circuit.

7. A lighting system comprising:

an LED circuit array comprising an LED circuit comprising a plurality of LEDs connected in series;

a capacitor;

a bridge rectifier configured to receive an input AC voltage from a mains power source;

a driver connected to the bridge rectifier and configured to provide a rectified output AC voltage to the LED circuit array;

wherein a forward voltage of the LEDs of the LED circuit array matches the rectified input AC voltage output of the driver; and

wherein the LED circuit array, the capacitor, the bridge rectifier, and the driver are all mounted on a single substrate;

8. The lighting system of claim 7, further comprising power factor correction circuitry.

9. The lighting system of claim 7, wherein the LEDs are coated or doped with at least one of a phosphor, nano-crystals, or a light changing or enhancing substance.

10. The lighting system of claim 7, wherein the rectified output AC voltage provided to the LED circuit array is relatively close to the input AC voltage input received from the mains power source.

11. The lighting system of claim 7, wherein the capacitor is configured to smooth the rectified output AC voltage.

12. The lighting system of claim 7, further comprising a data communication circuit comprising an antenna, wherein the data communication circuit is integrated with the substrate.

13. The lighting system of claim 12, wherein the capacitor is a first capacitor, wherein the data communication circuit further comprises an inductor and a second capacitor.

14. An LED lighting device comprising:

a plurality of LED circuits connected in parallel, wherein each LED circuit comprises at least two LEDs;

wherein the LED circuits are mounted on a reflective substrate;

an LED driver configured to receive one of at least two different input voltage levels from an AC mains power source; and

wherein the LED circuits and the LED driver are integrated in a single package.

15. The LED lighting device of claim 14, further comprising a 3-way switch.

16. The LED lighting device of claim 14, further comprising a data communication circuit comprising an antenna, an inductor and a capacitor, wherein the data communication circuit is integrated in the single package.

17. The LED lighting device of claim 14, wherein the LEDs are coated or doped with at least one of a phosphor, nano-crystals, or a lighting changing or enhancing substance.

18. The lighting device of claim 14, wherein the driver comprises power factor correction circuitry.

19. The lighting device of claim 14, wherein the driver comprises soft start circuitry.

20. The lighting device of claim 14, wherein the driver comprises at least one field effect transistor.

21. A lighting device comprising:

a data communication circuit having at least one LED circuit, wherein the at least one LED circuit has at least two LEDs connected in series, parallel or opposing parallel, and wherein the at least two LEDs are a same color or different colors;

wherein the data communication circuit having the at least one LED circuit is integrated into the lighting device;

wherein the lighting device can transmit data signals to or receive the data signals from at least one portable telecommunications device; and

wherein the portable telecommunications device comprises a circuit that can detect a human touch via capacitive sensing, and wherein the portable telecommunications device further comprises at least one LED that provides light based upon detection of the human touch.

22. The lighting device of claim 21, further comprising the portable telecommunications device.

23. The lighting device of claim 21, wherein the portable telecommunications device further includes at least one OLED.

24. The lighting device of claim 21, wherein the portable telecommunications device is configured to receive power wirelessly.

25. The lighting device of claim 21, wherein the at least one LED circuit is mounted on a reflective printed circuit board.

26. The lighting device of claim 21, wherein the lighting device further comprises:

integrated circuitry that allows adjustment of a brightness of the at least one LED circuit.