I am new in proteus and I have done a pcb design.I have the following doubts in pcb design using proteus.

  1. I need to connect a 100W bulb through the relays. Now the trace style is T30 .Is it sufficient for AC transmission to power a 100W bulb?
  2. I don't know how to get the dimension of the pcb I have done. I would like to
    know how to get the length and width of the pcb...? what is the dimension of a single tile in the grid...?

this is my pcb design


There's a mode called Dimension Mode. You can access this mode by clicking the button with a diagonal two-headed arrow symbol from the toolbar on the left:

enter image description here

At this mode, if you draw a line, it will show the length:

enter image description here

If you want to see the length in metric unit instead of imperial unit, go to View menu then click "Metric". All the dimensions will show in milimeters.

  • \$\begingroup\$ thank u..can you please tell something about first question \$\endgroup\$ – iqbalpalemad Dec 19 '16 at 7:28
  • \$\begingroup\$ Assuming the supply voltage for the bulb is 230Vac, so steady state load current will be 100/230=~450mA. Go to this page. Enter 0.45 for Current, 1 for Thickness, 10 for Temp. Rise and 25 for Amb. Temp. For trace length, if you click a trace on Ares, you'll see its length on the status bar at the bottom like "Tagget Route [ ... Length - 0.65in ]" and enter this value for "Trace Length" on the calculator page. You'll see the required trace width under "Results for External Layers in Air:" section. \$\endgroup\$ – Rohat Kılıç Dec 19 '16 at 7:49
  • \$\begingroup\$ i have done this which shows .128mm but how to apply this in proteus there the trace style is shown like T20 T30 \$\endgroup\$ – iqbalpalemad Dec 19 '16 at 9:49
  • \$\begingroup\$ @iqbalpalemad There's a button named "C" (Create) on top-left of the TRACES list (the list where T30, T20 etc. is placed in). Click that button, "Edit Trace Style" window will appear. Type a name like "M.128mm" or whatever you want and type ".128mm" into the Width textbox then click "OK". You'll have a style with a trace width of 0.128mm. Select this new style from the list then redraw the corresponding trace. \$\endgroup\$ – Rohat Kılıç Dec 19 '16 at 10:26
  • \$\begingroup\$ @iqbalpalemad Also please note that the calculated trace width is the "minimum" required value. I personally recommend you to use a larger value (e.g. 0.35mm instead of 0.128mm). \$\endgroup\$ – Rohat Kılıç Dec 19 '16 at 10:57

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