i've seen some people mask out the solder mask from these traces and let the wave solder build them up not very controlled though
personally i have never asked for 4oz or 6oz starting weight or seen much reference to those 2oz is pretty common though bus bars are pain , but they could work if it came to that i would look at just soldering in 18ga or 16ga jumper wires besides they can cross over! why is it single sided? - very (very) high volume? thru plates are much more reliable solder joints for those big heavy high current caps ds Frank Gilley wrote: > > Brian, > > Gosh, I would go for the fat copper if at all possible. This is not that > much amperage. Are you under some sort of space constrained situation where > you can't afford 500 mil traces? 500 mil traces outta get you a 10-15 C > rise with only 2 oz copper at 19 amps continuous. I should think that the > capacitor(s) you are going to be installing to handle this kind of ripple > is/are gonna be huge, so you should have the room. Not to mention the heat > those puppies are going to generate. > > -Frank > > At 02:41 PM 8/4/2003 -0400, you wrote: > >I'm designing a power supply with will have a large ripple current. This > >power supply will be on it's own PCB and it's 1 layer. Am I better off > >mounting high current rails, or, increasing the PCB copper thickness from > >1oz to something like 4-6oz? > > > >The power supply will be 90 vdc, continuous dc current of 4 amps, with > >current surges & ripple current above 15 amps. > > > >_____________ > >Brian Guralnick > >[EMAIL PROTECTED] > > > > > > > > Frank Gilley > Dell-Star Technologies > (918) 838-1973 Phone > (918) 838-8814 Fax > [EMAIL PROTECTED] > http://www.dellstar.com -- Dennis Saputelli ========= send only plain text please! - no HTML ========== _______________________________________________________________________ Integrated Controls, Inc. www.integratedcontrolsinc.com 2851 21st Street tel: 415-647-0480 San Francisco, CA 94110 fax: 415-647-3003 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To leave this list visit: * http://www.techservinc.com/protelusers/leave.html * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * Forum Guidelines Rules: * http://www.techservinc.com/protelusers/forumrules.html * * Browse or Search previous postings: * http://www.mail-archive.com/[EMAIL PROTECTED] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
