Hey,
With advise of an earlier thread I posted I tried making this circuit:
In this circuit, if you would measure the voltage after the output of the second Operational amplifier (unfortunately in this circuit the voltage meter is not drawn, but it should be connected to the ground on one end and to the output of U2 (the second op amp) on the other), you should get these results:
Vout = V1 + V2. I based this on this circuit I found in a paper about analog computing:
However, I'm not getting those values for Vout. Actually, I'm not getting any explainable values for Vout at all, no matter which voltages I apply to V1, V2, V3 and V4. I've been stuck on this for weeks so I really don't know what's causing the issue... since I checked my breadboard multiple times with the help of teachers as well and they couldn't figure out any mistakes I made while building the circuit in the first image. It would be awesome if someone is able to figure out what's wrong with this setup or circuit.
The op amp type is LM358 and the resistors are all 3k Ohm.
Here's some pictures of my breadboard (sorry if they're unclear, let me know if there's a better way to photograph it)
Thanks in advance!
With advise of an earlier thread I posted I tried making this circuit:
In this circuit, if you would measure the voltage after the output of the second Operational amplifier (unfortunately in this circuit the voltage meter is not drawn, but it should be connected to the ground on one end and to the output of U2 (the second op amp) on the other), you should get these results:
Vout = V1 + V2. I based this on this circuit I found in a paper about analog computing:
However, I'm not getting those values for Vout. Actually, I'm not getting any explainable values for Vout at all, no matter which voltages I apply to V1, V2, V3 and V4. I've been stuck on this for weeks so I really don't know what's causing the issue... since I checked my breadboard multiple times with the help of teachers as well and they couldn't figure out any mistakes I made while building the circuit in the first image. It would be awesome if someone is able to figure out what's wrong with this setup or circuit.
The op amp type is LM358 and the resistors are all 3k Ohm.
Here's some pictures of my breadboard (sorry if they're unclear, let me know if there's a better way to photograph it)
Thanks in advance!