"three phase" sig gen?

Paul Perry pfperry at melbpc.org.au
Fri Jan 29 13:17:44 CET 1999


At 05:17 PM 29/01/99 +1000, Merlin Zener  wrote:
>Thanks to the people who've already offered helpful replies:)
>
>I was kind of hoping for a transistor-only solution - a little
>more robust, I think.
>Kind of a three-way flipflop...

Welllll....just build a 3 stage flipflop!
It's just the same as a two, it's called a 'walking ring'.
With large walking rngs, there is the problem of more than
one section being 'on'..
But, how to be sure it has only one 'on' at a time?

Really, the more I think about it, I'd use 3 555 one shots 
in a circle, with a button to start them off (or some automatic
'power up' system). There isn't anything much more robust than these!

paul perry melbourne australia

Perhaps a byproduct of this will be a really interesting envelope generator?
Speaking of which, has anyone combined an envelope gen with a highly 
resonant LP filter around 0.1 Hz to give 'ripples' on the envelope?




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