MMM
Results 1 to 25 of 101

Thread: Capacitor Mods 101

Threaded View

  1. #2
    Registered User
    Join Date
    Aug 2003
    Posts
    79
    alot of caps are chosen for their resonant frequency, as in the frequency when the caps impedance drops to non exsistant, basicly its a filter cap for lowering interference outa the band in use. Those large digital PSU electrolytics tend to be selected for that, they dont need to really be anything close to that 1000-3300uF value

    ya dont wanna be changing much TBH adding caps in parallel to other power caps could lead you into creating ringy resonant circuits, cause of resonant harmoic modes or some crap ;()

    paralleling caps onto the larger PSU caps on the board will lower the ESR of what would have been the single caps ESR, alowing the caps to discharge at a faster rate.

    But u'll also lower the impedance of ya PSU lowering the noise on their lines and increasing the various IC's ability to focus on its job instead of waisting time screwing with interference

    purer powers a good thing!

    if anything it'll help with stability at high OC's unless the onboard powers a POS, not much else i dont think, im rookie though dont take my word for it

    change the electrolytics for low ESR OS-con's or any other decent cap would probably be best, dont parralel em, improvments would be extreamly little though

    or ya could parallel the larger PSU electrolytic on the stage ya screwing with, with a MLCC that resonates at the mid point of the band that stage works at

    dunno if it'd be any good, dependant curcuit ect

    im a rookie, for all i know im talkin complete &^$^
    Last edited by Maelstrom2160; 12-15-2004 at 10:19 AM.

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •