Regulator Noise

[christo]

paul,

  speaking of noise from triangle generators.. it may be helpful to check
out how others handle this.

  for example:  we all know it's necessary to use a very noise-spewing
triangle chopper in a switchmode power supply.  and there's a massive
toroid/switchmode power supply inside the JBL EON (the self-powered 15/horn
pa speaker).

  without have seen the inside of the eon... how could it be possible to
accomplish low-noise performance???

christo

>that having been said, I must admit I have managed to build PSUs with
>an astonishing amt. of noise......but the worst things I wrestle with
>are transition spikes from triangle generators in LFOs....NOTHING
>stops some of these....
>
>paul perry melbournw australia