Thanks for all your answers.
# snipped-for-privacy@aol.com
40A is alot for a pcb track, most people wire the power cables direct to the power devices.
I'm gonna use a copper bar and I have seen that can carries 40 A or bigger, but anyway can you tell me some adaptors in wich i can put an igbt with a to 247 capsule
#John Larkin -
Either
A nylon-shell (Amp or Molex) connector, using several pins (and wires) in parallel for current and return
or
2 or better yet 3 (or 4?) faston tabs soldered to the board, multiple wires again
or, best yet,
leaf through the Mouser and Digikey catalogs, and check out the Amp (Tyco), Molex, and Methode web sites.
Note that thermal and voltage drop issues get nasty with currents like this on PC boards. This is not trivial.
John
I have already seen that connectors and, it is a possible solution, you mean connectors like this?
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I think that is the solution that im gonna use.
# snipped-for-privacy@gmail.com Way back in the day, I used to repair 1970s era colour TVs where tracks had become hot enough to char the PCB material and even burn holes, destroying the hot track and adjacent ones. (Usually in the line output stage) It was common practice to cut away the (now much more conductive than when it was new) charred board material from the edges of the hole, prepare the ends of the interrupted tracks by scraping and tinning, and reconnect them with "bridges" of insulated wire soldered directly to the track. Not pretty but cheaper than a new line output board, and also often more reliable than the original board.
It's a good suggestion, i will have in account.