[sdiy] Capacitors on modular power buss?

[Tim Parkhurst]

Hi Julian,

I don't have an exact answer for you, but I'm sure someone with more
experience than I will chime in with some appropriate cap values. However, I
thought I'd provide a little background info for those who might be
interested in learning more about capacitors and their application in
bypassing and decoupling:

A pretty good primer on bypass caps. The last section "Using Bypass
capacitors" will give you the most useful information
http://www.seattlerobotics.org/encoder/jun97/basics.html

A neat site with good info on decoupling, bypassing, groundplanes, and
several other related topics
http://www.williamson-labs.com/480_dec.htm

Here's a nice little dual linear supply (adjustable, even) with nicely
written explanations of what each component does
http://orca.st.usm.edu/~jmneal/dual_psu/

And of course, Harry Bissell's Field Guide to Capacitors
http://www.muzique.com/cap_faq.htm
or
http://www.hoohahrecords.com/resfreq/articles/capacitor.html


Have fun with it, an here's hoping your modular always runs smoothly!


Tim (Lancelot Links) Servo

"Imagination is more important than knowledge." - Albert Einstein




> -----Original Message-----
> From: Julian [mailto:julian at 22host24.com]
> Sent: Thursday, September 23, 2004 11:09 AM
> To: Synth DIY
> Subject: [sdiy] Capacitors on modular power buss?
> 
> Hi there,
> 
> I asked this before, but it was in the midst of the list stutter malaki,
so that
> could have been the reason why i still dont know...
> 
> 
> After Harry's detailed explaniation of earthing, i was wondering as to
capacitance
> of the supply rails.  In particular ive been
> lookign at the MOTM boards, and see large caps there...
> 
> So, im wondering as to the type and size of caps that i should be using on
my +/-
> 12v system, and, i have to ask to, not being that
> smart, exactly where i should install these caps?
> 
> Thanks,
> 
> Julian
> 
> (in quest of nice smooth running modular)
> 
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