Products > Test Equipment
New miniature programmable DC power supply - FNIRSI DPS-150
Aldo22:
Another observation:
When I connect the power source to the DC input, sparks fly.
This worries me a little, but it works normally.
DaneLaw:
--- Quote from: Aldo22 on October 17, 2024, 08:01:00 pm ---It's OK.
You asked me if I hadn't checked the specs. I still don't know where to find the ripple/noise specs.
But never mind, I can measure it myself now. ;)
Thanks.
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Ok?
It claims the ripple tolerances to be sub 20mV and the posted video above tries to highlight getting way below that..
https://www.fnirsi.com/products/dps-150
Its highlighted below, I even hand-drawn a heart.. :o
Fungus:
--- Quote from: Aldo22 on October 17, 2024, 08:11:15 pm ---Another observation:
When I connect the power source to the DC input, sparks fly.
This worries me a little, but it works normally.
--- End quote ---
There might be a big capacitor across the input so this is inrush current. The capacitor will look like a short circuit for a fraction of a second.
DaneLaw:
Do value the display, more than I reckon I would when I got it.
Having time-aspect graph/trend info.. quite helpful when trying to make heads & tail of all the different test features in a programmable electronic load.
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Though the fastest you can get is 0.1s if I recall correctly, so fast pulses, gonna be cramped.
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ptluis:
--- Quote from: Aldo22 on October 17, 2024, 08:11:15 pm ---Another observation:
When I connect the power source to the DC input, sparks fly.
This worries me a little, but it works normally.
--- End quote ---
First connect the cable to the input of the fnirsi, then power on the input power supply, battery, etc
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