|
Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
|
|
|
Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
|
In Reply to: could you clarify this interesting point ? posted by tonemaniac on August 16, 2006 at 20:27:56:
To your question,"Does one have to take into account any factor of the capacitor, like ESR, and adjust the actual resistor accordingly ?"
No, the adjustment is in calculating the capacitor value to maintain the desired corner frequency. Each real capacitor will have some finite esr and a primary resonant frequency, but these effects are not relevant for determining the corner frequency. They will have such small influence that it is best to ignore them for this purpose. The primary resonance does determine the upper limit of frequency for which the R-C filter will work.
To your second question,
"Would it alter the nature of the parasitic inductance..."
It might make the inductance larger and lower the primary resonant frequency. This would be bad. If you want to do anything to the capacitor, stick some EAR damping material to it. Most capacitors with synthetic dielectrics have some acoustic response (they act like little speakers) and the signal can excite some mechanical resonances.
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- Some answers... - Al Sekela 08/17/0614:56:32 08/17/06 (1)
- excellent... thanks - tonemaniac 17:18:46 08/17/06 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2025, Audio Asylum, all rights reserved ]
