Category Archives: LED

ATS Webinar Reminder: LED Thermal Management, 9/23 @ 2PM; Special Sponsor Ellsworth Adhesives

Posted on September 21, 2010 by | Leave a comment

Ellsworth Adhesive Logo We just wanted to take a minute to remind our readers that we’ll be hosting a free webinar on Thursday, September 23 @ 2PM EST: “LED Thermal Management in Commercial and Consumer Lighting Applications”.

We’d also like to thank our new sponsor for this and the next webinar, Ellsworth Adhesives. Ellsworth is a global company that distributes a wide range of adhesives and chemicals and, of most interest to our readers, thermally conductive tape.

You can sign up for our free webinar here at this link: “LED Thermal Management in Commercial and Consumer Lighting Applications“

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High Power LED Thermal Management in Commercial and Consumer Lighting Applications; 9/23/2010, 2PM EST

Posted on September 10, 2010 by | 5 comments

Why does high power LED thermal management matter?  Excess heat directly affects both short-term and long-term LED light performance. The short-term effects are color shift and reduced light output while the long-term effect is accelerated lumen depreciation and thus shortened useful life. Participants will learn how to diagnose and solve thermal issues in consumer and commercial LED lighting applications.

You can register for our webinar at this link:  LED Thermal Management in Commercial and Consumer Lighting Applications

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Clemens Lasance offers up his views on LED Thermal Management

Posted on August 17, 2010 by | Leave a comment

Clemens Lasance is one of the most respected names in the field of thermal engineering. Mentor Graphics featured him in an interview on July 27th here. Principal Scientist Emeritus Lasance addressed the issue of LED thermal management in a slide share presentation that is well worth your reading. In this presentation, What is the role of the PCB in LED Thermal Management, he notes a few key nuggets:

  • The main objective of thermal management is the calculation of application-specific junction temperature [if you’ve ever been on an ATS Webinar, you’ve heard Dr. Kaveh Azar emphasize the same point]
  • The thermal engineers job is to find the largest thermal resistance in thermal series circuit
  • An excellent chart on typical thermal conductivity values

You can see the whole presentation here:
[slideshare id=2625155&doc=lasanceledpcb-091201121136-phpapp01]

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ATS LED Thermal Design Services Help You Cool Your Bright LED

Posted on August 17, 2010 by | Leave a comment

ATS has an entire LED thermal design practice dedicated to getting your LED lighting as cool as it is bright. There are some key hallmarks of our service that we think you’d enjoying knowing and they are all in the following presentation. Also, we can manufacture what we or what you design in our state of the art, U.S. based manufacturing.  To talk to our thermal applications engineers on getting some help on your thermal LED design, email us at sales.hq@qats.com, call us at 781-769-2800 or visit our LED Thermal Design Web Site.

[slideshare id=3063610&doc=isdtempandvelocitymeasurementoemboard-100203133354-phpapp02]

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ATS thermal consulting team gives leading LED manufacturer a 33% improvement in their heatsinkperformance

Posted on August 3, 2010 by | Leave a comment

A leading LED manufacturer approached ATS regarding a high heat LED thermal management problem. Their original heat sink design for a 6W LED light with a vertical orientation had specifications of Rhs of 9 K/W and a dThs of 54 C at ambient.

ATS analyzed their design, factoring in the position of the light (vertical) and how they might effect the design to bring greater improvements and headroom. ATS’s thermal engineering consulting included:

  • Testing the heat sink physically in our thermal lab
  • Creating models using CFD to determine the optimal design
  • Developing and Manufacturing samples to be re-tested in our lab, prior to moving to general availability for our customer.

The result was a 33% improvement in the heatsinks performance. See the following chart for the before and after technical results (click chart for a clearer and larger image):

LED Thermal Design Case Study Chart

 

ATS can supply consulting services to do the same for your LED heat sink design. For more information on our LED design consulting services, visit ATS at our LED Consulting Page.

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Posted in Case Studies, Heat Sinks, LED