stephenjvb
Newbie level 2
I need to figure out how big a board I need to dissipate heat in a power supply design. I can find no actual calculations on this. I can find calculations for the thermal vias themselves but nothing on the ground plane area. I have seen references saying ground plane heat sink areas over 1 sq.in. are ineffective along with thermal images but can't seem to find this again. Does anyone know where I can find information or images?
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