Modular LED-lighting system

Patent metadata

Field	Value
Publication number	US-9693402-B2
Application number	US-201113635230-A
Country	US
Kind code	B2
Filing date	Mar 21, 2011
Priority date	Mar 19, 2010
Publication date	Jun 27, 2017
Grant date	Jun 27, 2017

Abstract

The invention relates to a modular LED-light comprising a first module ( 1 ) to which an input voltage ( 9 ), preferably an AC-supply voltage, is guided, said first module comprising a second sub-module (B), preferably an insulating unit, a DC voltage separating the supply voltage by a galvanic separation being provided on the outlet of said insulating unit, and a control unit (G). Said LED light also comprises a second module ( 2 ), preferably a light management module, comprising an additional sub-module (C) which is fed by the DC-initial voltage of the first module ( 1 ), preferably a clocked constant flow source which is controlled by a control unit (E) of the second module ( 2 ), and an LED-module (F) which comprises at least one LED path ( 8 ) and which is supplied by the additional sub-module (C).

First claim

The invention claimed is:

1. A modular LED lighting having a first module ( 1 ), to which an AC input voltage ( 9 ) can be supplied and which has a first submodule (A), a second submodule (B), and a control unit (G), wherein:
the first submodule (A) is configured to convert the AC input voltage ( 9 ) to a DC voltage to be supplied to the second submodule (B);
the second submodule (B) is an insulated energy-transferring DC/DC converter and comprises an inverter ( 14 ), a resonant circuit ( 15 ), a transformer ( 19 ), which isolates an DC output voltage ( 5 ) electrically from the AC input supply voltage ( 9 ), and a rectifier ( 22 ); and
several second modules ( 2 ), each second module ( 2 ) of the several second modules ( 2 ) having a further submodule (C) and a control unit (E), wherein the further submodule (C) of the second module ( 2 ) is supplied with the DC output voltage ( 5 ) of the first module ( 1 ), and is a clocked constant-current source which is controlled by the control unit (E) of the second module ( 2 ) and wherein the several second modules ( 2 ) are selectively selectable for switching off the selected second modules ( 2 ); and
an LED module (F) which has at least one LED path ( 8 ) and which is supplied by the further submodule (C).

2. The LED lighting as claimed in claim 1 , wherein the control unit (G) of the first module ( 1 ) and the control unit (E) of the second module ( 2 ) are in data communication via a communication interface ( 6 ).

3. The LED lighting as claimed in claim 2 , wherein the internal data communication between the first module ( 1 ) and the second module ( 2 ) is standardized, which is independent of an external bus communication of the first module ( 1 ).

4. The LED lighting as claimed in claim 1 , wherein the first module ( 1 ), apart from the DC supply voltage ( 5 ) for the further submodule (C), also provides a DC low-voltage supply (V CCS ) for the second module ( 2 ).

5. The LED lighting as claimed in claim 1 , wherein the second module ( 2 ) and the LED module (F) are accommodated in a common housing ( 12 ).

6. The LED lighting as claimed in claim 5 , wherein an active and/or passive cooling means ( 40 ) is connected to the common housing ( 12 ).

7. The LED lighting as claimed in claim 1 , wherein the control unit (G) of the first module ( 1 ) can be addressed by an interface circuit (D) via an external bus ( 10 ).

8. The LED lighting as claimed in claim 7 , wherein the control unit (G) of the first module ( 1 ) can be addressed by an interface circuit (D) via an external bus ( 10 ) with potential isolation.

9. The LED lighting as claimed in claim 1 , wherein the first module ( 1 ) supplies one or more connected second modules ( 2 ) in parallel with at least two DC voltages having a different level.

10. The LED lighting as claimed in claim 1 , wherein the second module ( 2 ) comprises a lamp management module.

11. The LED lighting as claimed in claim 1 , wherein the first submodule (A) is a rectifier submodule (A), which converts the AC input voltage ( 9 ) to a DC bus voltage to be supplied to second submodule (B).

12. The LED lighting as claimed in claim 11 , wherein the inverter ( 14 ) converts the DC bus voltage to a second AC voltage to be supplied to the resonant circuit ( 15 ) and the transformer ( 19 ).

13. The LED lighting as claimed in claim 12 , wherein the rectifier ( 22 ) is configured to convert a third AC voltage from the transformer ( 19 ) to the DC output voltage ( 5 ).

14. The LED lighting as claimed in claim 1 , wherein the resonant circuit ( 15 ) is a series inductance-capacitance circuit.

Assignees

• Zimmermann Michael
• Pereira Eduardo
• Hartmann Martin
• Tridonic Ag
• Tridonic Gmbh & Co Kg

Inventors

• Zimmermann Michael
• Pereira Eduardo
• Hartmann Martin

Classifications

• H05B45/327

  Burst dimming · CPC title

• H05B45/46

  having LEDs disposed in parallel lines · CPC title

• Y02B20/347

  Cross-Sectional Technologies · mapped topic

• H05B33/0815

  Electricity · mapped topic

• H05B33/0827

  Electricity · mapped topic