); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY Surely there will be an improvement in oven temparature regulation, by using a regulated supply, but whether or not this improvment is marginal or significant would have to be determined either by experiment [my favourite], or calculation. As you say Chuck : it`s eliminating [or reducing the effect of] one variable in the equation. Cheers,................................................Don.
----- Original Message ----- From: "Chuck Harris" <[EMAIL PROTECTED]> To: "Discussion of precise time and frequency measurement" <[email protected]> Sent: Friday, October 26, 2007 12:29 PM Subject: Re: [time-nuts] Parallel voltage regulators > ); SAEximRunCond expanded to false > Errors-To: [EMAIL PROTECTED] RETRY > > 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: [EMAIL PROTECTED] 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 >> >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
