[sdiy] Soft sync circuits

[Fredrik Carlqvist]

How about an inverted, high-passed, amplitude reduced (N%) extra input to
the main oscillator comparator? Then another sawtooth in the same mode and
amplitude would reset the synched oscillator within N% of the natural reset,
and only if it's early.


Fredrik C

 

-----Original Message-----
From: owner-synth-diy at dropmix.xs4all.nl
[mailto:owner-synth-diy at dropmix.xs4all.nl] On Behalf Of harrybissell
Sent: den 24 februari 2005 07:14
To: synth-diy at dropmix.xs4all.nl
Subject: [sdiy] Soft sync circuits

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