Hi,

 

I was wondering if anyone had suggestions about making high current
connections to a PCB.

 

I am working with a design for a 2KW DC to AC converter. Input current will
reach about 200 amps. The PCB will be a heavy copper single sided Aluminum
PCB much like that used for high power LED apps. Conductor temp rise is not
an issue as the thermal conduction to the Al base is very high and the base
is on a heat sing. The FETs will dump much more heat than the copper.

 

The problem is bringing wire terminations to the PCB. Any Ideas? The Al base
is applied against a heat sink so using through board type studs or bolt is
difficult. I am considering the use of a couple of Keystone screw terminals
with their legs cut off. The bodies could then be SMT reflowed to the copper
planes.

 

http://www.keyelco.com/products/specs/spec186.asp

 

Any other ideas out there?

 

Thanks,

Bob K. 



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