[sdiy] Soft sync circuits

Samppa Tolvanen samppa.tolvanen at gmail.com
Thu Feb 24 05:12:07 CET 2005


On Wed, 23 Feb 2005 22:14:23 -0800, harrybissell
<harrybissell at prodigy.net> wrote:
> Hello All
> 
> thinking of some soft sync circuits.  I'm tring to do this on a sawtooth
> 
> core.  What I'm thinking of is a comparator the only allows an early
> reset
> if the reset pulse comes within a certain percentage of the natural
> reset time.
> 
> Think of a comparator whose output is AND-ed with the sync signal so
> that
> the main reset comparator is triggered early.
> 
> It might be possible to make the sync pulses of a fixed, small amplitude
> and
> sum them into the comparator trip point.
> 
> what think ye ?   Any schematics out there for my perusal ???
> 
> H^) harry
> 

I'd try a (cheapish) comparator,  (Yer favourite)BBD + (Cmossah)PPL, that would 
..
allow some syncing with your supposed purpose.. and for your favourite
oscillator.. Can I have your wife online?

Bye, Samppa



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