last revised Oct 2 2000
Power Supply Fan Regulator
Since the power supply fan is the most prominent noise source, special care has
to be taken here.
The speed regulator has two different supply paths; for temperatures below 30°
the fan operates on 5 Volts; just enough to keep it going and supply a minimum
of air.
Above 30° a linear regulator kicks in to increase the air flow for higher
loads.
( Diagrams to be added soon )
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