How to calculate the heat dissipation of a power supply.
How to calculate the heat dissipation of a power supply.
(OP)
Folks-
I once knew how to do this but the cobwebs are starting to win. Does anyone know how to calculate the heat dissipated by a power supply given the power supply efficiency and the total power consumption of the system powered by the power supply?
I once knew how to do this but the cobwebs are starting to win. Does anyone know how to calculate the heat dissipated by a power supply given the power supply efficiency and the total power consumption of the system powered by the power supply?
Tunalover





RE: How to calculate the heat dissipation of a power supply.
TTFN
RE: How to calculate the heat dissipation of a power supply.
Thanks, as always, for chipping in! You are one of the most product contributors to this forum and I appreciate it!
I think you meant:
Ppsu = Pout*(1-EFF)/(EFF)
I found the formula after some intense digging at work today. This makes sense because a perfect power supply has EFF=1 and Ppsu=Pout. You're formula has Ppsu going to infinity as EFF tends to 1.
Tunalover
RE: How to calculate the heat dissipation of a power supply.
TTFN