[SPICE] TRAN: Timestep too small; timestep = 3.61812e-019: trouble with node #v:q2:fi2#branch. @0.000002505s
THIS IS THE ERROR SHOWING ON SIMULATING. MAYBE SOME ISSUE WITH Q2 THAT IS IN LOWER HALF. Kindly give solution for it. Thanks

 

Hi,
Is Q2 intended to short the +ve & ground?

 

C2 & L2 charge to a voltage. when Q2 is active the current is supposed to dump through the diode. Just my take.

 

It is a bit difficult to understand what the circuit is supposed to be doing, especially the lower portion.
So really a bit of explanation is in order.
In addition, as a whole, the circuit is far too complex for most simulators to handle.