21 Dec
2011
21 Dec
'11
2:01 p.m.
4) The bit I get flaemd for soemtimes. Connect a
summy load to the
PSU (car bulbs -- 6V and 12V -- are useful for this) and run the
power supply on its onw. Check the output voltages, Check for
excessinve ripple if you have a 'scope.
Now I'm curious. Why would anyone flame you for doing, or suggesting,
that? (I don't recall seeing such flamage on the list; perhaps I
missed it, or forgot....)
(One note. I doubt tony needs to be told this, for two different
reasons, but it might not have occurred to others. If you don't have a
'scope handy, you can often get a decent idea of the amount of ripple
present by using an AC voltmeter in series with a moderately large
capaci-- um, condenser, for DC isolation. If your meter is known to
correctly display just the AC component even in the presence of DC
bias, you don't even need the DC isolation....)
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