randytsuch Wrote: > > My next, what should be obvious question, is how do you calculate the > correct snubber value, if you know the output inpedance of the circuit > you are adding the snubber to.
i'm still figuring that out. :) carlosfm claims to know, and he's generally a very helpful guy but he is kinda shadowy about it. i think he doesn't want DIYers getting too lazy and leaning on him too much. in any case, the first step is to figure out the equivalent output inductance of the regulator. in the case of the LM320T, based on the impedance graph and specified load i figure it's around 1.5uH. from there you have to work out the Zobel value, but i haven't quite figured out how to do this with the very low output impedance (around .01 ohm) of the regulator... just plugging that into standard Zobel formulas gives you ridiculous values. will have to think some more... -- dorkus ------------------------------------------------------------------------ dorkus's Profile: http://forums.slimdevices.com/member.php?userid=3373 View this thread: http://forums.slimdevices.com/showthread.php?t=19822 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
