Overshooting circuit ?

[patchell]

    This is a simple one.  It is called a voltage controlled filter.  Since
you are going to operating on control voltages, you might want to build a
voltage controlled low frequency filter.  Since you are going to be doing
control signals, I would suggest a low pass filter.  I don't know if you
would prefer a 2 pole (12db/oct) or 4 pole (24db/oct), but the 2 pole would
have fewer parts.  You will be able to control frequency and the damping (Q)
fairly easily.  You can probably modify one of TomG's circuits fairly easily
by just increasing the size of the capacitor in the circuit (generally it is
a .001uF, and you can probably change it to .1uF).

    Hope this helps.

    -Jim

Michael Buchstaller wrote:

> Hello Group,
>
> i have a simple question, but did not find an adequate solution for
> it, so i will ask the Gurus here ;-)
>
> I know that Opamp designers do hell of a lot of work to make their
> devices as perfect as possible (low noise, fast etc.), and most modern
> Opamps do have internal circuitry to prevent overshooting.
> But i want a circuit that does exactly this. For example, when the input
> signal raises quickly ,say from 0 to 5 Volts (maybe a gate signal),
> i want the output voltage to go from the initially 0 V to 8V, then 3 V,
> then 7 V, then 4 V, then 6 V, then finally the 5 V. I do not know if my
> description is clear; i do want a damped oscillation, preferrably with
> VC damping.
>
> My intention is to put a square wave from an LFO in the input, and
> hook the output to a VCO, so i expect to get sort of a
> "Sproioioinnng..." sound.
>
> Can anybody point me in the right direction ?
>
> -Michael Buchstaller

--
-----------------------------------------------------------------
Visit:http://www.silcom.com/~patchell/
-----------------------------------------------------------------