Electronic – Eagle PCB supply symbols in a multi-voltage system

eaglepower supply

Supply symbols signify vdd and gnd and perhaps vdd, gnd and vss in dual supply system.

However, in a situation where one has +5V, -5V, +3.3V, 1.8V, Analogue ground and Digital ground, what should one do about the symbols? There do seem to be 2 ground symbols so ground is not an issue but not many other symbols for nonground supply rails.

Expanding on this question if I am creating a "multi design" PCB with multiple +5V rails, +3.3V rails and grounds where every design has its own area on the PCB with no interaction with other designs, how does one use supply symbols in that case?

Best Answer

In the supply2 library, there are different +5V Symbols you can use those. (If you are a more advanced user you can modify the library and create your own.)

Another way is to use the NAME command and Label each net with XREF, this way it looks quite nice and you can select your own names e.g. +5V/1, +5V/2.