Hi!
I am trying to simulate some kind of regulated power supply using Multisim 8.
Look at the circuit (It amplifies voltage at 200 miliohm serial resistor)
It is minimal circuit which shows my problem.
As you can see at picture - LM324 produces negative voltage relating to ground! But it is impossible - opamp is powered with +12 and 0V voltages.
When i change LM324 with 'virtual opamp' it works as expected - there is no negative voltage at output.
I know that LM324 is far from ideal but i think it doeesn't have ability to produce negative voltages, especially when there is no capacitor or inductor in this circuit.
My question is - what am i doing wrong? What should i set in Multisim to have correct simulation ?
greetings Marcin