High frequency multi-voltage and multi-brightness LED lighting devices and systems and methods of using same

• US 10,980,092 B2
• Filed: 07/02/2019
• Issued: 04/13/2021
• 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., Andersen, James N.
• Primary Examiner(s): Luong, Henry
• Application Number:
  US16/460,790
• Publication Number:
  US 20190327800A1
• Time in Patent Office: 651 Days
• Field of Search: None
• CPC Class Codes: H05B 45/397 Current mirror circuits
• CPC Class Codes: H05B 45/42 Antiparallel configurations
• CPC Class Codes: Y02B 20/30 Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Abstract

A system and method transforming AC voltage to a high-frequency AC voltage and providing the high-frequency AC voltage to an AC LED circuit or rectifying the high-frequency circuit to a DC voltage and providing the DC voltage to a DC LED circuit.

Claims

1. A method of providing light, the method comprising:

receiving an AC voltage input at a first frequency at a driver, the driver being configured to receive a voltage level of the AC voltage input to produce a voltage output from the driver, the AC voltage input being one of at least two different AC forward voltages that are capable of being received by the driver;

transforming the AC voltage input at the first frequency to the voltage output using the driver, wherein a voltage of the voltage output is relatively constant when the driver is connected to at least two LED circuits and returns to a relatively constant voltage output after an LED circuit in series or in parallel with the at least two LED circuits is switched in or out from an output of the driver;

supplying the voltage output to the at least two LED circuits;

monitoring the voltage level at the output of the driver;

sending a signal to an internal control circuit based on monitoring of the voltage level;

determining whether the voltage output of the driver has a relatively constant voltage; and

responsive to the output of the driver not having the relatively constant voltage during a change in a number of LED circuits connected to the driver, adjusting the voltage level of the voltage output of the driver using the internal control circuit so that the voltage output remains relatively constant.

2. The method of claim 1, wherein the voltage output from the driver is a high frequency AC voltage output.

3. The method of claim 1, further comprising:

adjusting, via circuitry integrated in the driver, the voltage output of the driver to dim the at least two LED circuits.

4. The method of claim 1, wherein the driver comprises a high frequency inverter.

5. The method of claim 1, wherein the driver is configured to receive data from a transmission line or an antenna.

6. The method of claim 1, wherein the driver comprises a 3-way switch.

7. The method of claim 1, further comprising:

power factor correcting the AC voltage input.

8. The method of claim 1, further comprising:

stepping down the voltage level of the AC voltage input at a front end of the driver.

9. A method of driving an LED lighting device, the method comprising:

receiving, at a driver, an AC mains voltage input at a first frequency, the driver being configured to receive, one of at least two different AC mains voltage input levels;

performing, within the driver, steps of rectification, power factor correction, and stepping down the one of at least two different AC mains voltage input levels via a transformer to provide a voltage output having a voltage level from the driver that is lower than the received AC mains voltage input;

supplying the voltage output from the driver to at least one LED circuit; and

responsive to the voltage output of the driver not having a relatively constant voltage as during a change in a number of LED circuits connected to the driver, adjusting the voltage level of the voltage output of the driver so that the voltage output remains relatively constant.

10. The method of claim 9, wherein the driver voltage output is an AC voltage.

11. The method of claim 9, further comprising:

generating an internal voltage with a second frequency higher than the first frequency using a circuit in an output stage, wherein the second frequency is variable.

12. The method of claim 9, further comprising:

adjusting, via circuitry integrated in the driver, the voltage output of the driver to dim the at least one LED circuit.

13. The method of claim 9, wherein the AC mains voltage input received at the driver has been lowered from a standard mains voltage level by a dimmer.

14. The method of claim 9 further comprising:

lowering a voltage input of the AC mains voltage level from a standard mains voltage level prior to an AC voltage input received at the driver.

15. The method of claim 9, wherein performing the rectification, the power factor correction, and the stepping down of a voltage level of the one of at least two different AC mains voltage input levels comprises:

stepping down the voltage level of the one of at least two different AC mains voltage input levels at a front end of the driver.