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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: One added note... posted by Al Sekela on January 30, 2006 at 09:09:48:
You say that it is wise to install a large cap and put a smaller one in parallel because of parasitic inductance. In fact, most people do just that. They put in the primary cap and then one at one tenth or one onehuundredth the primary value in parallel. But now you have four resonances to deal with. The two capacitor's self resonant frequencies, the small cap resonating with the big cap's inductance, and the big cap resonating with the small cap's inductance. Seems like a mess to me, even if you can calculate for all of those resonance frequencies.Just a thought in favor of the keep it simple concept. We should probably target a specific frequency we want to filter out and leave it at that.
Just food for thought, please correct me if I am wrong.
QE
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Follow Ups
- I've been thinking about this for a while - Quiet Earth 12:30:03 02/01/06 (1)
- No, you are right. - Al Sekela 10:06:12 02/02/06 (0)
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