Elektor wave folder?

[jaroslav Lukesh]

Repost them, please...

> Thierry Rochebois posted an ascii schematic of a Wave wrapper that used
only a
> single op-amp with passive rectifiers (soft knee). I did a design based
on
> Thierry's work that uses active rectifiers (hard knee) but uses a quad
op-amp. I
> posted schematics and simulation runs of both units... If that interests
you and
> you didn't see them I can re-post them on the list.  The variable
parameter in
> these designs is just input amplitude... the output level is constant.
Multiple
> stages are cascaded to "re-wrap" the signal as it gets larger and larger.
6-8
> stages will cover input amplitudes up to 10V. Or check out the Serge
design
> (which I still don't understand...)
> 
> :^) Harry
> 
> Sean Costello wrote:
> 
> > Hi all:
> >
> > Someone mentioned in a posting a few months ago about an Elektor
circuit that
> > did "wave folding." Is this available on the web anywhere? Any
pointers?
> >
> > Thanks,
> >
> > Sean Costello
>