I ran the trace ampacity during design. It should be very happy at 10 amps, so I fused it at 7. I would love to have an electronic load. But to cheap to buy one as I so seldom need to use one. Those units you provided a link to look pretty nice.
From: Forrest Christian (List Account) Sent: Saturday, August 29, 2015 12:34 AM To: af Subject: Re: [AFMUG] It is official If those are the connectors I think they are, they're only rated to 12 or 13A (one of the reasons I don't sell shunts >10A). If you want to model the PCB fusing current and/or temperature rise, I find the saturn pcb toolkit (PC download) invaluable. http://www.saturnpcb.com/pcb_toolkit.htm For testing, I have a couple of these: http://www.circuitspecialists.com/dc-electronic-load-csi3711a.html They have a few other models... http://www.circuitspecialists.com/programmable-dc-electronic-loads -forrest On Fri, Aug 28, 2015 at 4:55 PM, <ch...@wbmfg.com> wrote: OK, did a 10 amp test, no heat to speak of. (30 volts). Having a hard time finding a half ohm load at 150 watts. Used a coil of #16 wire which was too high (impedance) of a load. Also, putting two Astron power supplies in series. They don’t play well with each other. I used to have a coil of nichrome. May need to find that. From: ch...@wbmfg.com Sent: Friday, August 28, 2015 12:33 PM To: af@afmug.com Subject: Re: [AFMUG] It is official No, 7 amp. 30 amps will get the PCB traces a bit hot, perhaps glowing hot. I guess I should test one to destruction.... From: George Skorup Sent: Friday, August 28, 2015 11:33 AM To: af@afmug.com Subject: Re: [AFMUG] It is official So is that like a 30A fuse you're shipping with it? Or do they actually make a 5x20mm shorting link? On 8/28/2015 11:15 AM, ch...@wbmfg.com wrote: � -- Forrest Christian CEO, PacketFlux Technologies, Inc. Tel: 406-449-3345 | Address: 3577 Countryside Road, Helena, MT 59602 forre...@imach.com | http://www.packetflux.com
