Products > Test Equipment

New miniature programmable DC power supply - FNIRSI DPS-150

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4thDoctorWhoFan:

--- Quote from: Fungus on September 24, 2024, 11:01:45 pm ---
--- Quote from: 4thDoctorWhoFan on September 24, 2024, 08:32:29 pm ---I have yet to use the barrel jack as so far I have only powered it via USB-C.

--- End quote ---

Did you get the one with the official USB adapter?

--- End quote ---

No, I purchased the power supply only.
I already have around 4 USB adapters that are more than sufficient.

Aldo22:
Do I understand correctly that it is not a step-up converter?
That is, the highest output voltage is equal to the input voltage?

On mysku there is a picture of the ripple/noise which doesn't look very good.
200mVpp is a lot.
Was it measured wrong, or how come?
Fnirsi says "<20mV ripple to protect sensitive electronics". But what's that? Vpp/Vrms?

4thDoctorWhoFan:

--- Quote from: Aldo22 on September 25, 2024, 10:08:19 am ---Do I understand correctly that it is not a step-up converter?
That is, the highest output voltage is equal to the input voltage?

On mysku there is a picture of the ripple/noise which doesn't look very good.
200mVpp is a lot.
Was it measured wrong, or how come?
Fnirsi says "<20mV ripple to protect sensitive electronics". But what's that? Vpp/Vrms?

--- End quote ---

I don't know what to tell you.  To many unknowns about what you posted.
All I know is that I don't have those sort of results.

Aldo22:

--- Quote from: 4thDoctorWhoFan on September 25, 2024, 11:03:47 am ---I don't know what to tell you.  To many unknowns about what you posted.
All I know is that I don't have those sort of results.

--- End quote ---

OK, but the first question is easy.
If your voltage source supplies e.g. 12V, can this device supply e.g. 20V or only 12V or less?

The other question relates to the review here:
https://mysku-club.translate.goog/blog/aliexpress/101049.html?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=de&_x_tr_pto=wapp

Thank you!

ArdWar:
Reading the manual (lol), this is buck only.

I'm also not sure which "reverse output protection" they're advertising. Likely just voltage since they still warn user to use protection diode if there's possibility of inadvertent quadrant 2 operation.

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