'I  was responsible for all connections,contacts and connectors for a
period. I had to change opinion about this topic! It's a LOT to learn. From
this time I dare insist:

1. Forget circular wires
2. Use flat and insulated 'cable' (or high current braid when high flex is
needed)
3. Braze!

If you can find Robert Kollman's 'Constructing Your Power Supply-Layout
Considerations' Texas Instrument , you may find further advice about
current calculations.

Inge


On 3 January 2013 16:31, Robert Kondner <[log in to unmask]> wrote:

> 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.
>
>
>
> ______________________________________________________________________
> This email has been scanned by the Symantec Email Security.cloud service.
> For more information please contact helpdesk at x2960 or [log in to unmask]
> ______________________________________________________________________
>


______________________________________________________________________
This email has been scanned by the Symantec Email Security.cloud service.
For more information please contact helpdesk at x2960 or [log in to unmask] 
______________________________________________________________________