Hi Friends,
I have finished designing the control board for my welding controller. Although I have tried my best and taken care of aspects such as Uninterrrupted ground plane, shortest traces by manual routing, Vcc Plane, Thickest traces possible etc. But I know there may be mistakes which I might have not thought of. I am using a 2 sided board for this earlier I had thought of using 4 layer board but then I realised that it would be an overkill for this board. I am posting the link to top layer, Bottom layer and Schematic. Please have a look at them and let me know your comments and suggestions any improvements etc. I have tried to use 30mil traces but where I couldn't I am using 13mil traces. At some places traces is a combination of 13mil and 30mil traces. Is it ok to change the width of a trace in this manner.




http://mumbai.mtnl.net.in/~prahlad/top.jpg
http://mumbai.mtnl.net.in/~prahlad/bottom.jpg
http://mumbai.mtnl.net.in/~prahlad/schematic.jpg

Thank you very much.
Regards,
Prahlad Purohit