PLAN B analog blog

--- In PLAN_B_analog_blog@yahoogroups.com, "(i think you can figure 
that out)" <peter@...> wrote:
"THis would be screwy if the offset pot wasn't configured the way it
is.  It's just that.  At 12'o clock or therebouts (when the LED is not
lit when there's no input activity), the offset is at null - there is
no offset.  as you turn the pot CW from there, it injects positive
voltage into the mix - it raises the resting voltage up. So if you had
no inputs going higher than ground, you can offset them upward so 
they do.

When the offset pot is turned CCW from 12 o clock, it injexts a
negative voltage into the mix, so you can offset your inputs downward,
thus activate the min output when it would otherwise be resting."


Sorry, I can't get it to work.

Let's say inputs are +1V and +2V and I want to get +1V (minimum) 
output. What exactly do I have to do? The offset pot doesn't seem to 
have any effect on min and max outputs.

Best regards
Jari Jokinen