Products > Test Equipment
Affordable Power Supply with Ethernet/LXI?
nightfire:
SItuation: I like to have a classic adjustable power supply with several twisting knobs for interactive fiddling around, but for some scenarios I would like to be able to adjust and get values from several devices at once, like power supply, electronic load, multimeter(s).
So I thought about automating stuff with scripts (SCPI/LXI) and connect everything in the future via ethernet, as this is simpler than fiddling around with multiport serial boards or multiple USB->serial (DB9) converters, especially when you have devices that use a special pinout.
One usage scenario that I envision would be the charging of batteries (photographic stuff, like camera batteries etc.) and controlled discharging to measure capacity and discharge curve.
Or powering some USB-based charging stuff and measuring things like throughput to verify what embedded logic or the 20€ USB-gizmos (USB wattmeters) tell me.
Question here: Which brand or model of power supply would be affordable, reliable and is manageable via Ethernet and Open-Source Software (resp. some other freely available software like testcontroller or Sigrok) where I can put my stuff in and maybe do a little scripting from my PC?
The Power Supply would have to be able to do 15V with 2A.
Or are there affordable solutions to retrofit some LXI->serial converters to existing gear like a Fluke 45 or a GW Instek PSP405?
abeyer:
--- Quote from: nightfire on March 12, 2024, 10:53:20 pm ---Question here: Which brand or model of power supply would be affordable, reliable and is manageable via Ethernet and Open-Source Software
--- End quote ---
The siglent spd1000s are <$300 new. I don't much care for the front panel controls but if the goal is ethernet remote, that doesn't matter.
If you're looking cheaper than that, maybe shop around for deals on a used HP bench supply and used/NOS ethernet-gpib interface. That might be the best price/reliability balance, though you're not that far behind just buying the new Siglent w/ ethernet built-in.
tautech:
--- Quote from: abeyer on March 13, 2024, 01:54:16 am ---
--- Quote from: nightfire on March 12, 2024, 10:53:20 pm ---Question here: Which brand or model of power supply would be affordable, reliable and is manageable via Ethernet and Open-Source Software
--- End quote ---
The siglent spd1000s are <$300 new.
--- End quote ---
Well under @ 229 Euro for the 16V 8A version.
https://www.siglenteu.com/power-supplies/spd1000x-series-programmable-dc-power-supply/
Extremely low noise and with sense terminals.
Supports Easypower, SCPI, LabView driver remote control.
https://www.siglenteu.com/service-and-support/firmware-software/dc-power-supplies < scroll down to SDP1000X.
BennoG:
is e-bay an option, if you are patient you can get a decent psu with LXI for les than $200.
I have my eye on one at the moment. 60V 12A
Benno
nightfire:
Thanks @all for confirming my thoughts so far, that it could whether be the Siglent 1168X or some used big brand like HP.
@tautech: Unfortunately we have 19% sales tax in germany, so thats on top of t he 229€ siglenteu quotes.... :-(
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