LED electric circuit assembly

• US 20070139317A1
• Filed: 04/07/2006
• Published: 06/21/2007
• Est. Priority Date: 12/16/2005
• Status: Abandoned Application

• Current Assignee: Dellux Technologies Inc.
• Original Assignee: Dellux Technologies Inc.
• Inventors: Chevalier, Daniel, Martel, Alain
• Application Number:
  US11/399,465
• Publication Number:
  US 20070139317A1
• Time in Patent Office: Days
• US Class Current: 345/82
• CPC Class Codes: F21S 4/10 with light sources attached to loose electric cables, e.g. Christmas tree lights
• CPC Class Codes: H05B 45/3725 Switched mode power supply [SMPS]
• CPC Class Codes: H05B 45/46 having LEDs disposed in parallel lines
• CPC Class Codes: Y02B 20/30 Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Abstract

A luminaire comprising an electric circuit element for a lighting system. The electric circuit element comprises an LED electric circuit assembly. The LED electric circuit assembly comprises one or more current regulated LED strings or chains. Each of the LED strings or chains comprises a respective current regulator and one or more LEDs linked in series with a respective current regulator. The LED electric circuit assembly is configured such that when the LED electric circuit assembly comprises two or more LED strings or chains, the two or more LED strings or chains are linked in parallel.

Claims

1. A luminaire comprising an electric circuit element for a lighting system, said electric circuit element comprising an LED electric circuit assembly, said LED electric circuit assembly comprising one or more current regulated LED chains, and wherein each of said LED chains comprises a respective current regulator and one or more LEDs linked in series with said respective current regulator, said LED electric circuit assembly being configured such that when said LED electric circuit assembly comprises two or more LED chains, said two or more LED chains are linked in parallel.

2. A luminaire as defined in claim 1 wherein said electric circuit element further comprises an electrical power component sensor means, said electrical power component sensor means being configured to generate a power component signal indicative of an electrical power component supplied to said electric circuit element.

3. A luminaire as defined in claim 1, said luminaire further comprising a voltage controllable power supply element for energizing said LED electric circuit assembly, said power supply element being configured to provide a set voltage across said electric circuit element, said set voltage being variable in response to a voltage control signal.

4. A luminaire as defined in claim 3 wherein said electric circuit element further comprises an electrical power component sensor means, said electrical power component sensor means being configured to generate a power component signal indicative of an electrical power component supplied to said electric circuit element by said voltage controllable power supply element.

5. A luminaire as defined in claim 4 further comprising a voltage control element having an input for receiving said power component signal indicative of an electrical power component supplied to said electric circuit element by said voltage controllable power supply element, and said voltage control element being configured to generate, in response to said power component signal, a voltage control signal for delivery to said controllable power supply element.

6. A luminaire as defined in claim 5 wherein said power component signal is a signal indicative of an electric current, wherein said electric circuit element comprises a current sensor, wherein said current sensor is linked in series with said LED circuit assembly, and wherein said current sensor is configured to generate said signal indicative of an electric current.

7. A luminaire as defined in claim 5 wherein said power component signal is a signal indicative of an electric voltage, wherein said electric circuit element comprises a voltage sensor, wherein said voltage sensor is linked in parallel with said current regulator, and wherein voltage sensor is configured to generate said signal indicative of an electric voltage.

8. An electric power system for manipulating the electrical power or energy provided by a power supply to an electric circuit element for a lighting system, said electric circuit element comprising an LED electric circuit assembly, said LED electric circuit assembly comprising one or more LED chains, and wherein each of said LED chains comprises a current regulator and one or more LEDs linked in series with said current regulator, said LED electric circuit assembly being configured such that when said LED electric circuit assembly comprises two or more LED chains, said two or more LED chains are linked in parallel,

said electric power system comprising:

a voltage controllable power supply element for energizing said LED electric circuit assembly, said power supply being configured to provide a set voltage across said electric circuit element, said set voltage being variable in response to a voltage control signal, and

a voltage control element having an input for receiving a power component signal indicative of an electrical power component supplied to said electric circuit element by said voltage controllable power supply element, and said voltage control element being configured to generate, in response to said power component signal, a voltage control signal for delivery to said controllable power supply element.

9. An electric power system as defined in claim 8 wherein said electrical power component signal comprises a signal indicative of the electric current supplied to said electric circuit element by said voltage controllable power supply element, and said voltage control element is configured to generate, in response to said signal indicative of the electric current supplied to said electric circuit element, a voltage control signal for delivery to said voltage controllable power supply element.

10. An electric power system as defined in claim 9 wherein said electrical power component signal comprises a signal indicative of the electric voltage supplied to the current regulator of an LED string or chain of said LED circuit assembly by said voltage controllable power supply element, and said voltage control element is configured to generate, in response to said signal indicative of the electric voltage supplied to the current regulator of an LED string or chain of said LED circuit assembly, a voltage control signal for delivery to said voltage controllable power supply element.

11. A lighting system comprising:

a voltage control component,

an LED component, and

a voltage controllable power supply component for energizing said LED component,

wherein said LED component comprises one or more luminaries,

wherein each of said luminaires comprises a respective electric circuit element and a respective current sensor,

wherein each of said respective electric circuit elements comprises a respective LED electric circuit assembly

wherein each of said respective LED electric circuit assemblies comprises one or more current regulated LED chains, each of said LED chains comprising a respective current regulator and one or more LEDs linked in series with said respective current regulator, and each of said respective LED electric circuit assemblies being configured such that when a respective LED electric circuit assembly comprises two or more LED chains, said two or more LED strings or chains are linked in parallel,

wherein each of said respective current sensors is linked in series to a respective LED electric circuit assembly, each of said respective current sensors being configured to generate a respective current signal indicative of the current supplied to a respective LED electric circuit assembly,

wherein said voltage controllable power supply component is configured to provide a set voltage across each of said electric circuit elements, said set voltage being variable in response to a respective voltage control signal, and

wherein said voltage control component having an input for receiving each of said respective current signals provided from said respective current sensor elements, said voltage control component being configured to generate said respective voltage control signals in response to said respective current signals for delivery to said controllable power supply component.