Unable to solve convergence error

[hamzaafridi]

I have designed a BLDC motor controller in MultiSim and I am getting convergence error. I tried solving it by adjusting the timestep and accuracy settings and also tried to change the circuit abit  (the mosfet driver circuit had some resistors and diodes to look for ringing), I tried changing the values of resistors, it worked for a while but then it stopped again.

I have attached the multisim file to this post, looking forward to experts help in solving this problem.

[niarena]

Hi hamzaafridi,

Could you attach an image of the error? and/or tell the steps to reproduce it, when I tried to run it, I got a message telling that a file was missing 

I don't know if an expert, but for convergence errors, check on this

http://digital.ni.com/public.nsf/allkb/A65253BD02F585CD86257A6B0049945D

http://forums.ni.com/t5/Multisim-and-Ultiboard/Unable-to-solve-convergence-error/td-p/1488044