); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY Tom Clifton wrote: > A question for those that might know (or have an > opinion)... I have in hand an LPRO rubidium reference > that requires 1.7 amps at 24 volts while the oven > warms, dropping to 500ma while it runs. > > Can I parallel three or four 7824 TO220 style 1 amp > regulators with a quarter ohm half watt equalizing > resistor on the output of each one? > > At maximum load there would be a quarter volt drop > across the resistors and the LPRO is stated to be ok > running on 16 to 32 volts. > > Tom > > __________________________________________________ > Do You Yahoo!? > Tired of spam? Yahoo! Mail has the best spam protection around > http://mail.yahoo.com > > _______________________________________________ > 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. > > Hej Magnus
Since the output voltage range of a 7824 is 23 - 25V that arrangement wont work very well unless you match all 7824's to within say 50mv or so of the same output voltage and mount them on a common heat sink. If you want to use a 3 terminal regulator why not just use an LM338 (plus a couple of resistors to set the output voltage) or similar device? Bruce _______________________________________________ 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.
