Simulation in Multisim error

[ahmelsayed]

Hello everyone,

I'm trying to simulate a zerocrossing detector using OP Amp, it is not that deficult to be confused about it ! but multisim gives me a horrible results. i even brought my text book and made a review on the circuit a again ! may be i commit a mistake but it was correct !
and i beleive it is not a mistake that multisim can commit cause it is multisim !
i spent all the night trying to figure it out but i found nothing 😞
so can anyone help me with that ?

Thanks,
Ahmed

[Tayyab_R]

Hi Ahmed,

Can you please post the Multisim file.