Re: fast discrete PHEMT one-shot

On Wed, 15 May 2024 22:46:27 -0000 (UTC), piglet
<erichpwagner@hotmail.com> wrote:

John Larkin <jjSNIPlarkin@highNONOlandtechnology.com> wrote:

 
https://www.dropbox.com/scl/fi/agatzclr8pvr5470g6mc4/Phemt_One_Shot_1.jpg?rlkey=cwnx0qd7ajgnh8otf627x5lku&raw=1
 
Regular monostables are terribly slow. This one has low prop delay and
high rep-rate, if the sim is to be believed.
 
SAV541 is mostly specified as an RF part, but it's a dynamite switch.
 
I can post a link to the files if anybody wants to play with this. All
my values are first guesses, no math involved, and it works!
 
My SAV541 Spice model is a revision of Phil Hobbs' original.
Mini-Circuits is adamant that they will never provide Spice models, a
typical RF-bigot attitude.
 
 

>
Yay! Eccles-Jordan ride again.

1918!

I think that was a bistable. I don't know when the monostable was
invented.

People tend to roll eyes when I use one-shots in logic designs. I
can't see why.