I ordered a few. At the very least, if they work out, I can just copy the circuit. It is probably just the same circuit as the ap note for the regulator chip.
From: Chuck McCown Sent: Monday, November 30, 2015 3:43 PM To: [email protected] Subject: Re: [AFMUG] DC-DC Converter That’s a nice one. From: Mathew Howard Sent: Monday, November 30, 2015 3:40 PM To: af Subject: Re: [AFMUG] DC-DC Converter Here's one that's a bit smaller, but probably still too big. who knows if it will be around for awhile... it's direct from China, but there's a ton of this sort of stuff on ebay and amazon. http://www.ebay.com/itm/DC-DC-LM2596HV-Buck-Converter-5V-60V-to-1-25V-26V-Power-Module-48V-to-3V-5V-12V-/301216970372?hash=item4621ee3684:g:Y98AAOSwq5lTnr-E On Mon, Nov 30, 2015 at 4:31 PM, George Skorup <[email protected]> wrote: What's huge? A Mean Well RSD is going to be rather large. There's also the Traco DIN rail mount (TCL series, and that will be over $50/ea), but that is also pretty large. What application? On 11/30/2015 4:19 PM, Chuck McCown wrote: It is huge. Looking for something that will be around for some time. Things like this I fear are surplus/overruns/obsolete EOL products. From: Mathew Howard Sent: Monday, November 30, 2015 2:44 PM To: af Subject: Re: [AFMUG] DC-DC Converter how about $2.29? http://www.ebay.com/itm/DC-DC-HRD-Converter-24v-36v-48v-Step-Down-To-12v-3A-Power-Module-Portable-/201239343894?hash=item2edaccb316:m:m9vd1B-jJ6zZr8sE6SAWNYQ On Mon, Nov 30, 2015 at 2:50 PM, Chuck McCown <[email protected]> wrote: Need 48 in, 12 out. From: SmarterBroadband Sent: Monday, November 30, 2015 1:48 PM To: [email protected] Subject: Re: [AFMUG] DC-DC Converter How about $11. We have used these to power radios off batteries for installers. They are adjustable - we set them 48v out on 16.2v battery packs. http://www.amazon.com/DROK-Converter-Transformer-Regulator-Inverter/dp/B00BZR9PBW Adam From: Af [mailto:[email protected]] On Behalf Of Chuck McCown Sent: Monday, November 30, 2015 12:38 PM To: [email protected] Subject: [AFMUG] DC-DC Converter Looking for the smallest cheapest 12 volt to 48 volt unit that will do 20 watts. Digi-Key has some but they are not cheap. Looking for something in the $20 range.
