Study on a cooling system based on thermoelectric cooler for thermal management of high-power LEDs

Improving cooling effectiveness by use of chamfers on the top of electronic components

“…All this aspects and much more are presented and discussed in the report [3]. One example of the temperature effects is highlighted by Li et al [4] who showed that in the case of the high-power light-emitting diodes (LEDs) when the temperature increases by 1°C, luminescence intensity decreases by 1% and wavelength of light-wave changes 0.2-0.3 nm which leads to the changes of light color. If the heat cannot dissipate properly, it will lead excessive temperature, shorten the life, and thermal stress will damage the LEDs chip.…”

Experimenting and Simulating Thermoelectric Cooling of an LED Module

“…This heat must be removed also by the HS or the HSF mounted on the TEC. Use of TEC as an active cooling device for LEDs has been studied by authors [4][5][6]. In those studies, TEC is used with passive cooling devices.…”

A temperature controller for high power light emitting diodes based on resistive heating and liquid cooling

“…One way to control the temperature is to use a thermoelectric Peltier element with the associated controller electronics [14,15]. With Peltier elements, the junction temperatures can be adjusted accurately, but the cooling power depends on the temperature difference between the device to be cooled and the ambient, which limits the temperature range and the rate of cooling with highpower LEDs.…”