Products > Test Equipment

New miniature programmable DC power supply - FNIRSI DPS-150

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4thDoctorWhoFan:

--- Quote from: Aldo22 on September 21, 2024, 06:30:11 pm ---Does it produce (a lot of) noise/ripple itself or does that just depend on the quality of the input?

--- End quote ---
Okay, I did a very quick check for ripple using the usb C input.  I'm using a relatively cheap Amazon Basics 100W USB wall charger.
Under load, the ripple is negligible.  I used a 1A load and varied the voltage from 1V to 20V.
I also compared it with the ripple from the output of my Rigol DP832 power supply and I couldn't see any difference.

But as you stated, it might depend on the quality of the source.
 

Fungus:

--- Quote from: 4thDoctorWhoFan on September 21, 2024, 07:26:18 pm ---But as you stated, it might depend on the quality of the source.

--- End quote ---

Nah, the voltage will go through all sorts of inductors/capacitors on the way to the ouput. Your source would have to seriously messed up to make a noticeable difference.

4thDoctorWhoFan:

--- Quote from: Fungus on September 21, 2024, 10:16:50 pm ---
--- Quote from: 4thDoctorWhoFan on September 21, 2024, 07:26:18 pm ---But as you stated, it might depend on the quality of the source.

--- End quote ---

Nah, the voltage will go through all sorts of inductors/capacitors on the way to the ouput. Your source would have to seriously messed up to make a noticeable difference.

--- End quote ---
Well, there you go.
If source does not matter, then ripple is not a concern.

Fungus:
I'm seriously thinking of getting one...  :popcorn:

4thDoctorWhoFan:

--- Quote from: Fungus on September 21, 2024, 11:34:34 pm ---I'm seriously thinking of getting one...  :popcorn:

--- End quote ---

You should get one.  They are cheap enough.

Personally, I like the flip screen.  I also have the miniware power supply and while it's well built, the LCD screen is very small.

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