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Thermal Management of High Power LEDs

Thermal Management of High Power LEDs Price: $ 89.00

Norbert Engelberts Director

Light emitting diodes (LED) used to have a strong presence in instrumentation and computer as visual indicator for signal integrity and device operations status. In these applications, LEDs were ideal since they are highly reliable, low power while requiring little to no maintenance. The latter features of LEDs piqued the market interest for their use not only as indicator but also as lighting devices. Since illumination has become the focus, the power consumption of LEDs has gone up dramatically with device heat fluxes rivalling CPU and other semiconductor packages. As the result, thermal management of LED applications has taken the centre stage for their successful implementation. It’s important to remember that an LED is not a high temperature, filament-type light source. Most LEDs are designed in SMT (surface mount technology) or COB (chip-on-board) packages. But, while a single LED is a cold and efficient light source, high-power LED applications, including arrays of LEDs, need thermal management similar to other semiconductor devices. High temperatures not only degrade an LED’s lifetime, but also results in lower light or non-uniform output – effects that can significantly affect the application In this presentation we will demonstrate the required approach for thermal management of LEDs that will enable the designer to select the appropriate cooling solution based on the LED’s junction temperature, and not on the total power dissipation.

This video presentaiton was recorded during coolingZONE-11 Business & Technology Summit.  The video is 60 minutes long.