Re: Restorer's dream part 2 the chassis.
I just stumbled on this thread and can help explain the operation of the Aurora at low and high voltage.
There is an under voltage supervisor circuit that will force a reset if the internal voltage is about to drop out of regulation. In this respect, there is no danger of erratic operation at low voltage since it's all or nothing. This usually happens right around 5V. There is also a time delay on this reset, so even if the voltage is quickly bouncing around 5V, the unit will just stay in reset until the voltage is high enough and stable long enough.
On the other end, the main voltage regulator is rated at 20V maximum and may be damaged over this. If the converter is operated this high for long periods of time, this regulator can go into thermal shutdown to protect itself, but this will also be a very slow cycling as the part cools down and heats up.
While I have never seen and can't envision a scenario that would allow the output to go erratic, in engineering you never say never.
Darryl
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