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Seperating LED

Patent

US9029881

Owner

OSRAM GmbH

Filing Date

July 10, 2013

Priority Date

July 10, 2012

Portfolio

Lighting - OSRAM

Intro

LED modules often have capacitors to reduce flicker. The LED, the capacitor and other electronic components are generally arranged on a printed circuit board. This patent allows for smaller form factors by separating LED and capacitor into two separate structural units. This comes in handy when the form factor of an LED module or fixture needs to be small, such as in poorly accessible areas.

Claims

1. A light emitting diode module; comprising: at least one light emitting diode; wherein the at least one light emitting diode is connected in paralle...
  1. A light emitting diode module; comprising: at least one light emitting diode; wherein the at least one light emitting diode is connected in parallel with at least one first capacitor; wherein the at least one light emitting diode is arranged in a first structural unit, and the at least one first capacitor is arranged in a second structural unit, wherein the first structural unit and the second structural unit are electrically coupled to one another via a first cable, further comprising: a rectifier and a driver apparatus for the at least one light emitting diode; wherein the rectifier and the driver apparatus are arranged in the first structural unit.
  2. The light emitting diode module of claim 1, wherein the light emitting diode module comprises at least one first light emitting diode chain, which comprises the at least one light emitting diode, wherein the first capacitor is connected in parallel with the first light emitting diode chain. 
  3. The light emitting diode module of claim 2, wherein the light emitting diode module comprises n light emitting diode chains and at least n capacitors, wherein each light emitting diode chain is connected in parallel with at least one capacitor, wherein the n light emitting diode chains are arranged in the first structural unit, and the at least n capacitors are arranged in the second structural unit.
  4. The light emitting diode module of claim 1, further comprising: a rectifier and a line filter; wherein the rectifier and the line filter are arranged in the second structural unit. 
  5. The light emitting diode module of claim 1, wherein the light emitting diode module comprises an input with a first and a second input connection, wherein the first structural unit is coupled to the first and the second input connection via at least two electrical lines passed through the second structural unit.
  6. The light emitting diode module of claim 1, wherein the light emitting diode module comprises a second cable, which is arranged between the second structural unit and the input of the light emitting diode module.
  7. The light emitting diode module of claim 1, wherein the first cable comprises a detachable coupling apparatus, which is in particular in the form of a plug-type connection.
  8. The light emitting diode module of claim 1, wherein the first cable does not comprise a detachable coupling apparatus.
  9. The light emitting diode module of claim 1, wherein the second structural unit is formed in such a way that the capacitors are encapsulated by injection molding with an insulating material.
  10. The light emitting diode module of claim 1, wherein the length of the first cable is between 1 and 20 cm.
  11. The light emitting diode module of claim 10, wherein the length of the first cable is between 5 and 10 cm. 
  12. The light emitting diode module of claim 1, wherein the light emitting diode module is designed in accordance with the Zhaga spotlight industry standard.  
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Abstract

In various embodiments, a light emitting diode module is provided. The light emitting diode module may include at least one light emitting diode; wher...
In various embodiments, a light emitting diode module is provided. The light emitting diode module may include at least one light emitting diode; wherein the at least one light emitting diode is connected in parallel with at least one first capacitor; wherein the at least one light emitting diode is arranged in a first structural unit, and the at least one first capacitor is arranged in a second structural unit, wherein the first structural unit and the second structural unit are electrically coupled to one another via a first cable.
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Conroy
October 08, 2018


Applications: Low cost filming lighting, proved the level of flickering reduction is sufficiently reduced.
Companies: Cinelight, FLEx, etc...

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Bastian October 08, 2018

Thanks so much, Conroy!


Cappy1
January 31, 2018

I think it's pretty good when the LED modules with integrated drivers get smaller and smaller. The life of the LED module should also be improved with this construction method and the space requirement be reduced, in order to be able to use it even in hard to reach places. In addition, the modules can be combined in many ways.

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Buggi
January 08, 2018

As Franz already said, this Patent will become more and more important for LEDs with integrated drivers like this one: http://www.szledcolor.com/download/WS2813%20LED.pdf These WS2812/13 LED chips have low voltage DC drivers and usually have a support Capacitor soldered near the LEDs. This could be something covered by the patent if we see LEDs with integrated AC drivers.

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Aidin
January 04, 2018

The invention discloses a lightweight, small and portable LED luminaire that can be used at poorly accessible areas. Existing designs have problems in terms of luminaire size mainly caused due to presence of in-house on chip parallel capacitors. Proposed luminaire has a LED, a rectifier and a driver connected in parallel with a capacitor using a cable, to reduce flickering effect. In the proposed design the capacitor is mounted away from the LED to reduce the size and increase capacitor lifetime. The technology may be implemented in LED spotlights, smart LED luminaires, outdoor LED light etc.

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AV Club
December 13, 2017

Here are our pros and cons. Pros: Makes sense if you need a low profile for LED and cannot have a bulky capacitor. Or if the capacitor should not be too near at the heat source (LED). Or if the capacitor should be easy to replace. Cons: Not a cost saving because of extra wiring. Instead of two wires you have several wires.

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Mickey
December 06, 2017

Franz is right. This invention can become very valuable as LED drivers become smaller and smaller. Claim 1 requires "one light emitting diode is arranged in a first structural unit ... and one first capacitor is arranged in a second structural unit ... whereas the rectifier and the driver apparatus are arranged in the first structural unit." Today, drivers are bulky and are often in a separate housing from the LED. When drivers become smaller, I am pretty sure that companies will put driver and LED in one housing and put the larger capacitors somewhere else. And this patent has another 15 years before it expires!

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Timsta
November 28, 2017

I am happy to see this growing! GoodIP: Thank you, Timsta. Please let us know what you think about the patent :-)

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Franz
November 27, 2017

When LEDs come with an integrated Driver some day, this patent may become relevant

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