Bi-Pulse Convertor Schematic online!

[Magnus Danielson]

From: KA4HJH <ka4hjh at gte.net>
Subject: Bi-Pulse Convertor Schematic online!
Date: Mon, 1 Jan 2001 04:07:13 -0500

> I wasted a few hours redrawing this, just to avoid drawing fire from
> you-know-who:
> 
> http://www.crowncity.net/ratcave/Electro/BiPulse/BiPulse.html
> 
> 
> Is Ian back around yet? I certainly want to give him credit for the design.
> It's his baby.
> 
> 
> Somebody wire this up and tell us what it sounds like. It's much fancier
> than the oscillator in Reaktor.
> 
> 
> BTW, it looks funny--I had to use an old drawing program because my symbol
> collection for Illustrator still isn't finished. When I converted it to PDF
> it got a little garish.
> 
> Download it, tell me what's wrong with it...

Hmm... I just realized that the waveform comming out of this (if using
Sine as noted) is diffrent from mine (if using Saw as
noted). Fundamentally there is no big diffrence between the two
constructions thought.

For sine and triangle:
    __            __
   |  |          |  |
   |  |          |  |
---    ---    ---    ---
          |  |
          |__|

For sawtooth:
__            __
  |          |  |
  |          |  |
   -------   |   -------
          |  |
          |__|

The diffrence between feeding one of these with sine or triangle is the
CV sensitivity curve will be sinuoid or linear. Stuffing an LFO down
the CV line should get diffrent characteristics of this, as would any
form of PWM by the way.

Cheers,
Magnus