Op Amp Circuit Question

L

Longcircuit

Newbie
Joined
Aug 31, 2024
Messages
5
Helped
0
Reputation
0
Reaction score
0
Trophy points
1
Visit site
Activity points
68
Hi ,

I'm trying to reverse engineer this opamp circuit . The input is hall effect sensor that measures input current . As i simulate i notice only the top op amp appears to be doing anything while the bottom is saturated at 0. If this is case what's the point of the bottom op amp?
 

Sort by date Sort by votes
Hi,

I agree. I also think it´s a full wave rectifier ... followed by some kind of averaging filter.
But really badly designed. A lot of parts and effort for poor performance. Especially when there is a full wave rectifier example in the OP datasheet. Way more simple and with better performance.

Klaus
 

Upvote 0 Downvote
You must log in or register to reply here.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…