Carrier controlled light-emitting diode light and light-emitting diode light string having the same

Patent metadata

Field	Value
Publication number	US-10779379-B2
Application number	US-201916266819-A
Country	US
Kind code	B2
Filing date	Feb 4, 2019
Priority date	Dec 28, 2018
Publication date	Sep 15, 2020
Grant date	Sep 15, 2020

Abstract

A carrier-controlled LED light includes at least one LED and a drive unit. The drive unit is coupled to the at least one LED, and receives a carrier light signal to control the at least one LED to proceed to light. The drive unit includes a light control unit and a comparison unit. The light control unit drives a light action of the at least one LED according to a light command content of the carrier light signal. The comparison unit receives a DC working electricity and compares the DC working electricity with a reference voltage value. When a voltage value of the DC working electricity is less than the reference voltage value, the light control unit enters a sleep mode.

First claim

What is claimed is:

1. A carrier-controlled light-emitting diode light comprising:
at least one light-emitting diode; and
a drive unit coupled to the at least one light-emitting diode, the drive unit configured to receive a carrier light signal to control the at least one light-emitting diode to proceed to light, the drive unit comprising:
a light control unit configured to drive a light action of the at least one light-emitting diode based on a light command content of the carrier light signal; and
a comparison unit configured to receive a direct current working electricity and configured to compare the direct current working electricity with a reference voltage value,
wherein when a voltage value of the direct current working electricity is greater than the reference voltage value, the comparison unit is configured to output a first control signal based on the light command content of the carrier light signal, so that the light control unit is configured to enter a work mode; when the voltage value of the direct current working electricity is less than the reference voltage value, the comparison unit is configured to output a second control signal to the light control unit, so that the light control unit is configured to enter a sleep mode; the reference voltage value is greater than a reset voltage value of the drive unit.

2. The carrier-controlled light-emitting diode light in claim 1 , wherein the drive unit further comprises:
an address signal processing unit coupled to the light control unit and the comparison unit,
wherein the address signal processing unit is configured to store a light address; the address signal processing unit is configured to receive an address signal sent from the light control unit to compare the address signal with the light address; when the address signal conforms to the light address, the light control unit is configured to drive the at least one light-emitting diode to light based on the light command content of the carrier light signal; when the comparison unit outputs the second control signal to the address signal processing unit, the address signal processing unit is configured to enter the sleep mode until the address signal processing unit receives the first control signal; after the address signal processing unit receives the first control signal, the address signal processing unit is configured to enter the work mode.

3. The carrier-controlled light-emitting diode light in claim 2 , wherein the drive unit further comprises:
an address burn unit coupled to the address signal processing unit and the comparison unit,
wherein the carrier light signal comprises a burn start signal and a burn address signal; when the address burn unit receives the burn start signal, the address burn unit is configured to write the light address into the address signal processing unit based on a burn command content of the burn address signal; when the comparison unit outputs the second control signal to the address burn unit, the address burn unit is configured to enter the sleep mode until the address burn unit receives the first control signal; after the address burn unit receives the first control signal, the address burn unit is configured to enter the work mode.

4. The carrier-controlled light-emitting diode light in claim 3 , wherein the drive unit further comprises:
an oscillator coupled to the light control unit, the address signal processing unit, the address burn unit and the comparison unit,
wherein when the comparison unit outputs the second control signal to the oscillator, the oscillator is configured to enter the sleep mode to stop an oscillating work until the oscillator receives the first control signal; after the oscillator receives the first control signal, the oscillator is configured to enter the work mode to start the oscillating work to provide an oscillation signal; when the oscillator is in the sleep mode and stops the oscillating work, the light control unit, the address signal processing unit and the address burn unit do not receive the oscillation signal provided by the oscillator, so the light control unit, the address signal processing unit and the address burn unit are configured to enter the sleep mode.

5. The carrier-controlled light-emitting diode light in claim 1 , wherein the drive unit further comprises:
a current detection unit coupled to the light control unit,
wherein after the light control unit receives the light command content of the carrier light signal through the current detection unit, the light control unit is configured to drive the light action of the at least one light-emitting diode.

6. The carrier-controlled light-emitting diode light in claim 5 , wherein the drive unit further comprises:
a discharge unit coupled to the comparison unit and the current detection unit,
wherein when the discharge unit receives the carrier light signal sent by the current detection unit, the discharge unit is configured to start discharging the direct current working electricity.

7. The carrier-controlled light-emitting diode light in claim 1 , wherein the drive unit further comprises:
a power capacitor coupled to the light control unit, the comparison unit and the at least one light-emitting diode.

8. The carrier-controlled light-emitting diode light in claim 1 , wherein the at least one light-emitting diode and the drive unit are arranged on a baseboard with a surface mount device form; the drive unit and the at least one light-emitting diode are electrically connected by a wire bonding method and are packaged inside a package body.

9. The carrier-controlled light-emitting diode light in claim 1 , wherein the drive unit is electrically connected to and arranged on a first platform; the at least one light-emitting diode is electrically connected to and arranged on a second platform; the drive unit and the at least one light-emitting diode are electrically connected by a wire bonding method and are packaged inside a package body.

10. A carrier-controlled light-emitting diode light string comprising:
a power line;
a controller coupled to the power line; and
at least one light-emitting diode light, each the at least one light-emitting diode light comprising:
at least one light-emitting diode; and
a drive unit coupled to the at least one light-emitting diode, the drive unit configured to receive a carrier light signal to control the at least one light-emitting diode to proceed to light, the drive unit comprising:
a light control unit configured to drive a light action of the at least one light-emitting diode based on a light command content of the carrier light signal; and
a comparison unit configured to receive a direct current working electricity and configured to compare the direct current working electricity with a reference voltage value,
wherein when a voltage value of the direct current working electricity is greater than the reference voltage value, the comparison unit is configured to output a first control signal based on the light command content of the carrier light signal, so that the light control unit is configured to enter a work mode; when the voltage value of the direct current working electricity is less than the reference voltage value, the comparison unit is configured to output a second control signal to the light control unit, so that the light control unit is configured to enter a sleep mode; the reference voltage value is greater than a reset voltage value of the drive unit; the at least one light-emitting diode light is coupled to the controller through the power line, and is configured to receive the direct current working electricity and the carrier light signal sent by the controller through the power line.

Assignees

• Semisilicon Technology Corp

Inventors

• Peng Wen-Chi

Classifications

• F21V23/0435 Primary

  activated by remote control means · CPC title

• H05B47/19

  via wireless transmission · CPC title

• H05B47/1985

  Creation of lighting zones or scenes · CPC title

• H05B47/185 Primary

  via power line carrier transmission · CPC title

• H05B47/235

  with communication between the lamps and a central unit · CPC title