Some salt on the popcorn?
Regarding net classes handling... Flexible automatic design rules would need
"differential net classes" that means different rules for a net depending on
surrounding nets.
As an example I'll explain the problem of a traditional power electronics half
bridge circuit:
HV---- 400V 10A
|
Gh--|< 0-415V 1A 0 < V(Gh)-V(Sh) < 15
|
Sh---------> Out 0-400V 10A
|
Gl---|< 0-15V 1A
|
GND------> 0V 10A
HV net needs "power" class clearance and width towards all nets as does Out. Sh
needs "power" class clearance towards all nets, but Gh and width according to
"control" class. Gh needs the same, but "control" clearance towards Sh. Gl
needs "control" class clearance and width.
Curently this system is unrealisable using KiCad DRC. I propose adding a
"potential class" description to net class design rules to address this problem.
-Vesa
_______________________________________________
Mailing list: https://launchpad.net/~kicad-developers
Post to : kicad-developers@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kicad-developers
More help : https://help.launchpad.net/ListHelp
