AC LIGHT EMITTING DIODE AND AC LED DRIVE METHODS AND APPARATUS

• US 20190313491A1
• Filed: 06/21/2019
• Published: 10/10/2019
• 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 10,750,583 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. An LED lighting device comprising:

an LED driver having an input and an output, wherein the input is configured to receive an AC voltage source or a DC voltage source, and wherein output provides an AC voltage or a DC voltage;

at least one LED circuit having a plurality of LEDs connected to the output of the LED driver, wherein a first voltage that is input to the at least one LED circuit closely matches a second voltage that is input to the LED driver; and

a transistor, wherein the transistor is operable to control a current flow to the at least one LED circuit;

wherein the at least one LED circuit, the transistor, and the LED driver are mounted on a same substrate.

2. The LED lighting device of claim 1, wherein the same substrate is a heat sink.

3. The LED lighting device of claim 1, wherein the same substrate is a PCB substrate.

4. The LED lighting device of claim 3, wherein the PCB substrate is mounted to a heat sink.

5. The LED lighting device of claim 1, wherein the plurality of LEDs includes at least one LED of a different color than another LED of the plurality of LEDs.

6. The LED lighting device of claim 1, wherein the same substrate is a reflective substrate.

7. The LED lighting device of claim 1, wherein the LED lighting device is dimmable when connected to a dimmer switch.

8. 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.

9. The lighting device of claim 8, wherein the data communication circuit is configured to transmit data to or receive the data from the portable telecommunications device.

10. The lighting device of claim 8, wherein at least one LED in the at least one LED circuit is configured to transmit data to or receive the data from the portable telecommunications device.

11. An LED lighting device comprising:

at least one LED circuit having a plurality of LED packages, wherein the plurality of LED packages emit light of a same color or of different colors;

a glass substrate;

a flexible substrate mounted to the glass substrate, wherein at least one of the plurality of LED packages is mounted to the flexible substrate; and

an LED driver having an input for receiving a first AC voltage and a first frequency, the LED driver providing a second AC voltage or a second DC voltage output to the plurality of LED packages.

12. The LED lighting device of claim 11, wherein the flexible substrate is a reflective substrate.

13. The LED lighting device of claim 11, wherein the first frequency is a high frequency input.

14. The LED lighting device of claim 11, wherein the LED lighting device includes a three way switch that is selectable by a user.