[time-nuts] Parallel voltage regulators

Chuck Harris cfharris at erols.com
Thu Oct 25 19:29:30 EDT 2007


The simple answer is if the heater supply in unregulated, and the
supply changes, it will take a little while before the heater control
loop can compensate.  While this is happening, the oven temperature
will be slightly wrong, and the crystal frequency will be offset.
Voltage regulation adds one more level of isolation to the oven temperature
from changes in raw supply voltage.

-Chuck Harris

Matt Ettus wrote:
> ); SAEximRunCond expanded to false
> Errors-To: time-nuts-bounces+cfharris=erols.com at febo.com RETRY
> 
> This may be a bit late in this [strangely contentious] discussion, but
> I have to ask why you need to regulate the heater voltage?  If the
> voltage varies, the control loops will adjust accordingly.  Unless the
> input voltage is higher than some safe range for the heater circuitry.
> 
> Matt
> 
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