Technical Design-in Guide SLE G6 | 12-2018 | 2.1 | en
Thermal Aspects
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6.2.2. Active cooling
Round active cooling module round
Square active cooling module
Example of active cooling for the module
An active heat sink consists of the heat sink itself and an electrically powered fan. The fan dissipates heat from the heat sink by
blowing a sufficient quantity of air along the surface of the heat sink. To reduce the power draw and noise, the fan speed can be
controlled from the active cooling system on the basis of temperature. A diaphragm can be used as an alternative to fans to produce
(1)
active air movements.
Active heat sinks with fan cooling achieve around six times the performance of passive heat sinks for the same amount of material
used. Active heat sinks can therefore be made very compact.
(1)
The fan is not controlled by the LED module.
Benefits of active cooling
6.3. Fan connection and temperature measurement
6.3.1. Fan driver
s
in order to make sure that the LED modules are sufficiently cooled.
Fan driver drive active heat sinks
Space savings
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Effective cooling
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Professional design
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