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U3B's output should not get V(dc): -10.2kV, but why?
Weird Output with MultiSim 13.0
- Thread starter Murray Chen
- Start date
U3B's output should not get V(dc): -10.2kV, but why?
The + input of U3B is connected to what? 4.2V?
You connected the rails of U3A, you connected for U3B too?
Yes, the + input of U3B is connected to 4.2V.
For U3B, it no needs to connect to rails, because U3A and U3B are in the same component.
okay but it can connect? if it can then connect
First, thanks for your Greetings.connect the 2 points marked x in U3B and then no problem if you expect output to go to negative rail
btw, welcome to AAC!
MultiSim do not allow to connect redundant rails to the same component
(U3A and U3B, in this case).
For your suggestion, I changed U3B to U4A, but got the same results.
It can not. These 2 red cross marks are brought out by MultiSim itself and means not necessary to connect to rails in this case.
oh sorry...you can make 1 more stupid change?
if yes then connect ground symbol at V1
Also, try different op amp
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Although it works with LM358P, but can not cease my doubt.
(Because I've simulated the original circuit with Altium Designer and OrCAD, they both did well without any problem.)
what's circuit for?
Part of 18650 battery charging system.
