[sdiy] Analog division

[Karl Ekdahl]

It's for a waveshaper so i'm not sure as it'll be running continuosly, i guess it depends on how many points per period i want - up to 200kHz?

Karl

--- Den lör 2010-07-17 skrev Eric Brombaugh <ebrombaugh1 at cox.net>:

> Från: Eric Brombaugh <ebrombaugh1 at cox.net>
> Ämne: Re: [sdiy] Analog division
> Till: synth-diy at dropmix.xs4all.nl
> Datum: lördag 17 juli 2010 00:10
> On 07/16/2010 02:59 PM, Karl Ekdahl
> wrote:
> > Hi list
> > 
> > So i want to do analog division but i can't really
> find anything useful, most of what i've found so far are
> vague statements about being able to do it with a
> log/antilog approach and then this site; http://en.labs.wikimedia.org/wiki/Electronics/Analog_multipliers
> which looks great except none of the circuits work when i
> simulate them. Also i've been looking into using the AD633
> but hot damn they're expensive. Any pointers to a fairly
> accurate (not exceedingly so) division-circuit?
> 
> It's possible to compute division by wrapping a servo loop
> around a multiplier, but the loop has a certain settling
> time which may not be tolerable in your application. What's
> the bandwidth of the signal you need to divide?
> 
> Eric
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