> Time constant is just R*C. If you have a 1000uF cap and a 1K resistor you > have 1 second. In theory you could build 100s just by using a 100K resistor > but I think real world components are not perfect enough.
Does anybody know anything about the temperature coefficients of large caps? I found data for ceramic caps, but when I added "electrolytic" all I got was lifetime stuff rather than capacitance change with temperature. I'm not interested in the frequency shift of the filter as the temperature but the voltage shift due to a fixed charge as the capacitance changes. -- These are my opinions, not necessarily my employer's. I hate spam. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
