Question

Can anyone help me to find a Software for Electric circuits Simulation. Please help its very important for me Now

Answer 1

Do you want to create circuits as in just the electronics portion of it, or you want to look at the mechanical side of things such as cooling the circuits and such?

If you want to just create circuits, then PSpice is something I have used in the past:
http://www.electronics-lab.com/downloads/schematic/013/

If you want to look at the mechanical side of things such as heat transfer rates as the electronics run, then possibly Autodesk Simulation Multiphysics, you would need some background in CAD software where you could make basic shapes of things, give them thermal properties and then run an analysis with fans or other things to see how it reacts.

If you give more detail on what you are looking to do maybe there is another type of tip I could give.

Answer 2

thanks.

Answer 3

I use SPICE, available here http://bwrcs.eecs.berkeley.edu/Classes/IcBook/SPICE/

It was recommended to the MITx 6.002x students last spring on completion of the first EdX course and I have been using it ever since.

Answer 4

LT Spice @blues has got it right!