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ea-ps_2084-03b

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This article is about measuring the accuracy on the EA PS 2084-03 B power supply.

acquisition

Until then I used and ATX power supply with an ATX breakout board. I provides all voltages needed for electronics: 3.3 V, 5 V, and 12 V. But you can't set the current. It only comes with a 1.25 A polyfuse.

So I decided it was time to buy my first bench power supply. But is had to fulfil the following criteria:

  • set voltage and current
  • wide voltage range (0-50 V)
  • silent
  • have an earth connection
  • not expensive
  • not noname
  • provide a communication interface (most important)

I found and bought a used power supply on eBay for ~ 80 €. And now I own an Elektro-Automatik EA-PS 2084-03 B power supply. And this fulfilled are the requirements:

  • set voltage and current: in 0.1 V and 0.01 A steps
  • wide voltage range (0-50 V): 0-84 V, 0-3 A (not a lot, but enough for electronics), limited to 100 W
  • silent: not fan, full passive cooling
  • have an earth connection: on the front panel
  • not expensive: ~ 80 €
  • not noname: Elektro-Automatik (never heard of it, but it's German and they have a decent website)
  • provide a communication interface: USB with proprietary documented protocol

Here some more documents about this power supply:

ea-ps_2084-03b.1432663614.txt.gz · Last modified: 2024/01/07 17:49 (external edit)