On 10/28/2020 5:32 PM, jimlux wrote: > The 48-ish volt power supply for my Z3801 gave up the ghost.. > > What's the latest in off-the-shelf power supplies (external is fine, > uncased is fine)? > > There were plenty of suggestions on the list a few years back, and I > can pick one of those up, but hey, someone else might have walked this > path before more recently. > > Or, should I go get 4 12V sealed lead acid, 4 12V wallwart trickle > chargers and make a 48 Volt supply? (I can't imagine it would be > cheaper than some Meanwell PS) > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. I dis(re)member how much current you need, but recycling (surplus) is probably a good option as well:
https://www.mpja.com/48-Volt-Power-Supply/products/544/ https://www.allelectronics.com/category/480150/power-supplies/48-volts-dc-power-supplies/1.html https://www.bgmicro.com/1B1403.aspx and a host of others. A decent range of cost and reliability options. Derating and cooling are the real reliability enhancers in decently designed supplies. And, this was designed for a telecom application, so it's /probably /rated for 36-72 VDC. This is the normal specd range for 48 V nominal. I'd still use a 48 V supply, but would be too concerned about regulation. Oz (in DFW) _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
