How to Keep Your Cool While Working With Power Electronics: Static Thermal Design Issues
نویسنده
چکیده
This quick calculation implies that the only way to achieve the rated maximum power dissipation is to have a “perfect heatsink” or an “infinite heatsink.” The thermal impedance used in the calculation is from the junction to case only and assumes zero impedance into the ambient. This is practically impossible to achieve. Further, the ambient was assumed to be 25C (room temperature) which may not be the situation if the circuit is inside an enclosure where the ambient is, say, 40C or higher.
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