Author Topic: JFet switching with 3.3V logic  (Read 665 times)

AdamB

Re: JFet switching with 3.3V logic
« Reply #20 on: August 13, 2019, 12:00:06 PM »
Ah OK cool, thanks!

AdamB

Re: JFet switching with 3.3V logic
« Reply #21 on: August 13, 2019, 12:10:45 PM »
Here's the latest schem with the caps in as you suggest



Rob Strand

Re: JFet switching with 3.3V logic
« Reply #22 on: August 13, 2019, 05:20:40 PM »
Quote
Here's the latest schem with the caps in as you suggest
I have to apologize, I screwed up a bit when I added stuff to your schematic.  It's not quite there.

Hopefully, this is right,


Notice I've added 2x 1M resistors .
It's getting pretty complicated.
« Last Edit: August 14, 2019, 07:05:38 AM by Rob Strand »
The mind often distorts without gain.

AdamB

Re: JFet switching with 3.3V logic
« Reply #23 on: August 14, 2019, 05:08:25 AM »
Okykoke, I'm not at my desk today but will take a look tomorrow and see if I understand, thanks!

AdamB

Re: JFet switching with 3.3V logic
« Reply #24 on: August 14, 2019, 12:04:32 PM »
Right found some time after-all. Good spot on the flipped mosfet, tried to clean up the schematic by moving it over and mirroring but just rotated it instead of flipped it lols.

Here's the latest version: