Inge, Found it at: http://training.ti.com/courses/CourseDescription.asp?iCSID=50691 You will need to sign in, but it is FREE! Phil -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Inge Hernefjord Sent: Thursday, January 03, 2013 11:31 AM To: [log in to unmask] Subject: Re: [TN] 200A Connections to PCB '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] ______________________________________________________________________ ______________________________________________________________________ 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] ______________________________________________________________________