Re: Power supply question.....A Good Cap info link

Good reading on Caps. See sections on:
-Formation of the Anodic Films, Aging and Operating Limitations

http://www.faradnet.com/deeley/book_toc.htm#toc

faradnet.com/deeley/book_toc.htm#toc

-Lee

There are so many conflicting experts, it's best to state your
information or question, read the responses and dont take anything
personal, and be open to learning other points of view and
experiences. Then keep whatever knowledge you've gained.

> >
> > There is some charge thing that goes on related to the chemistry

of an

> > electrolytic cap, such that a cap used below its rated voltage

loses

> > capacitance, almost in direct proportion to the rated voltage /

applied

> > voltage.
> >
> > That is, a 100 volt electrolytic cap used at 50 volts will,

within a

> > short period of time, have only half the capacitance.
> >
> > Therefore, against all good engineering instincts, a person

should use

> > an electrolytic cap rated for a voltage as close as possible to

the

> > expected DC voltage.
> >
> > Alan
> >
> > --
> >
> > Alan Rothenbush | The Spartans do not ask the

number of the

> > Academic Computing Services | enemy, only where they are.
> > Simon Fraser University |
> > Burnaby, B.C., Canada | Agix of

Sparta

> >