Light emitting diode light structures

• US 10,462,864 B2
• Filed: 07/16/2018
• Issued: 10/29/2019
• Est. Priority Date: 01/02/2013
• Status: Active Grant

• Current Assignee: Luminatronics LLC (Jeffrey M. Gross)
• Original Assignee: Austin Ip Partners
• Inventors: Rybicki, Mathew A., Mulligan, Daniel Patrick
• Primary Examiner(s): Houston, Adam D
• Application Number:
  US16/035,852
• Publication Number:
  US 20180343718A1
• Time in Patent Office: 470 Days
• CPC Class Codes: F21K 9/238 Arrangement or mounting of circuit elements integrated in the light source
• CPC Class Codes: H01L 2224/48137 the bodies being arranged next to each other, e.g. on a common substrate
• CPC Class Codes: H01L 2224/49107 on the semiconductor or solid-state body
• CPC Class Codes: H01L 25/0753 the devices being arranged next to each other
• CPC Class Codes: H01L 25/167 comprising optoelectronic devices, e.g. LED, photodiodes
• CPC Class Codes: H01L 27/0248 for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection
• CPC Class Codes: H01L 29/73 Bipolar junction transistors
• CPC Class Codes: H01L 33/62 Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls
• CPC Class Codes: H05B 45/10 Controlling the intensity of the light
• CPC Class Codes: H05B 45/397 Current mirror circuits
• CPC Class Codes: H05B 45/40 Details of LED load circuits
• CPC Class Codes: H05B 45/50 responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
• CPC Class Codes: H05B 45/59 for reducing or suppressing flicker or glow effects
• CPC Class Codes: H05B 47/19 via wireless transmission
• CPC Class Codes: Y02B 20/30 Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Abstract

A Light Emitting Diode (LED) light includes a bridge rectifier configured to be powered by an alternating current power source and to produce a rectified output. Control circuitry couples to the bridge rectifier and is configured to produce a shunt signal when the rectified output is less than a threshold voltage. A series connected Light Emitting Diode (LED) string includes a first group of LEDs and a second group of LEDs. A switch couples to a first side of the second group of LEDs and is controlled by the shunt signal to deactivate the second group of LEDs. The control circuitry may include a ratio metric series resistor string configured to sense a proportion of the rectified output and an inverter configured to generate the shunt signal based on the proportion of the rectified output.

Claims

1. A Light Emitting Diode (LED) light system comprising:

a LED light including;

a bridge rectifier configured to convert an alternating current power source to a rectified output;

control circuitry configured to produce a plurality of shunt signals based upon a voltage of the rectified output; and

a series connected Light Emitting Diode (LED) string coupled directly across first and second outputs of to the bridge rectifier, the series connected LED string having a primary group of LEDs and at least one secondary group of LEDs; and

a switch coupled to the plurality of secondary group of LEDs and controlled by the shunt signal to selectively deactivate the at least one secondary group of LEDs;

a communication module; and

a controller configured to control the LED light based upon interaction with the communication module.

2. The LED light system of claim 1, wherein the communication module supports Radio Frequency (RF) communications.

3. The LED light system of claim 2, wherein the communication module supports at least one of:

at least one version of an IEEE 802.11 communication protocol;

at least one version of the Bluetooth communication protocol;

or

at least one cellular communication protocol.

4. The LED light system of claim 1, wherein the communication module supports the communication of at least one of:

video data;

picture data;

music data;

or

Internet data.

5. The LED light system of claim 1, wherein the communication module supports the communication of Internet data that is used by the control circuitry to control the LED light.

6. The LED light system of claim 1, wherein the communication module supports infrared communications.

7. The LED light system of claim 1, wherein the communication module supports communications with at least one computing device.

8. The LED light system of claim 1, wherein the communication module supports communications relayed to a different LED light system.

9. The LED light system of claim 1, wherein:

the communication module supports receipt of a video data; and

the controller is configured to control the LED light based upon the video data.

10. The LED light system of claim 1, wherein:

the communication module supports receipt of audio data; and

the controller is configured to control the LED light based upon the audio data.

11. The LED light system of claim 1, wherein:

the communication module supports receipt of a modulated signal; and

the controller is configured to control the LED light based upon the modulated signal.

12. The LED light system of claim 1, wherein the communication module is configured to:

receive power line data; and

transmit wireless data to a client device that is based upon the power line data.

13. The LED light system of claim 1, wherein the communication module is configured to:

receive wireless data from a client device; and

transmit power line data to a wall switch that is based upon the wireless data.

14. The LED light system of claim 1, wherein the communication module is configured to:

receive control data; and

transmit wireless data to another LED light system that is based upon the control data.

15. The LED light system of claim 14, wherein:

the control data is data is received in a wireless format;

or

the control data is received in a power line data format.

16. The LED light system of claim 1, wherein the communication module is configured to support communications with other LED light systems to support a mesh network of LED light systems.

17. The LED light system of claim 1, wherein the communication module is configured to act as a repeater.

18. The LED light system of claim 1, wherein the controller is configured to:

receive control data from the communication module; and

use the control data to control the LED light for energy saving operations.

19. The LED light system of claim 1, further comprising at least one detector configured to detect the presence of an occupant.

20. The LED light system of claim 19, wherein the detector comprises at least one of a motion sensor or a sound sensor.

21. The LED light system of claim 20, wherein the controller is configured to reduce illumination of the LED string upon detection of non-occupancy.

22. The LED light system of claim 20, wherein the controller is configured to increase illumination of the LED string upon detection of occupancy.