How do you decide proper capacitor setup values ?

Jul 15, 2006 at 8:49 PM Thread Starter Post #1 of 3

ozshadow

500+ Head-Fier
Joined
Apr 29, 2006
Posts
620
Likes
10
For example, incoming power to caps then into jfets to tle2426 then more caps before the opamps.

How do you decide the best values of each ? Will one side having more compacitance be more of an improvement than the other?
 
Jul 16, 2006 at 1:34 AM Post #2 of 3
That is the eternal question. You need to pick capacitor values that provide ripple rejection when needed, load up the parts with capacitance if needed for stability, if you are using a regulator then you need to take care that the inductive output does not cause ringing, select a capacitor with suitable ESR etc etc.

In the end it is often easier to simply mix and match capacitors by ear or better yet by careful measurment than to solve it before hand.

In the case of the TLE2426 it is important to put capacitance on the output because the 2426 is a low current device and otherwise bass response may suffer.
 
Jul 16, 2006 at 5:11 AM Post #3 of 3
^ unless the virtual ground is buffered by another stage.
so yea, sticking to the schematics with suggested BOM is adviceable. that should most probably get you a working amp without creating so much help threads.
 

Users who are viewing this thread

Back
Top