PSpice Error: Convergence problem in transient bias point calculation (wein bridge oscillator)?

Question

I get this error when I use an opamp where I specify Vcc/Vee. When I use the idealized opamp part I don't get this error.

Anyone have any idea how I can troubleshoot this?

Answer 1

It's no doubt having problems finding the DC solution since the circuit is inherently an oscillator. Try ramping your supply. At t=0, let the supply be zero so the program can find a solution and then ramp (linear) the supply to Vdd in a reasonable amount of time. It should then break into oscillation. The ideal op amp has no components in it, so it doesn't have a dc solution to worry about.

Answer 2

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