[time-nuts] Frequency Divider

Hal Murray hmurray at megapathdsl.net
Thu Apr 2 19:21:21 UTC 2009


> A large resistor connected between the input and output would
> accommodate threshold variations better. Even better would be a
> feedback loop that adjusts the input bias point to maintain the output
> duty cycle at 50%. 

Isn't that resistor a feedback loop?

I played with that setup in the lab many years ago.  It didn't work as well 
as I was expecting.  I didn't figure out why it didn't work better.

Maybe some gain in the feedback path would help.  Then we have to consider 
stability.  Ugh.


-- 
These are my opinions, not necessarily my employer's.  I hate spam.






More information about the time-nuts mailing list