Products > Test Equipment
New miniature programmable DC power supply - FNIRSI DPS-150
Aldo22:
But it's pretty noisy.
Why didn't anyone tell me that? ;)
Attached (all without load):
1. DPS-150 without 'scope BW limitation / 12V
2. DPS-150 with BW limitation 20MHz / 12V
3. for comparison my self-built (linear) PSU / 12V. Same measurement conditions, without BW limitation
P.S. On / Off characteristics here:
https://www.eevblog.com/forum/testgear/lab-power-supply-turn-on-and-off-characteristics/msg5680719/#msg5680719
DaneLaw:
--- Quote from: Aldo22 on October 17, 2024, 04:39:22 pm ---But it's pretty noisy.
Why didn't anyone tell me that? ;)
--- End quote ---
You didn't check the specs?
Do you have a picture of your setup..?
Aldo22:
Hi
--- Quote from: DaneLaw on October 17, 2024, 06:30:19 pm ---You didn't check the specs?
--- End quote ---
Where are the exact ripple/noise specs?
--- Quote from: DaneLaw on October 17, 2024, 06:30:19 pm ---Do you have a picture of your setup..?
--- End quote ---
Not today, the setup is no longer there.
DaneLaw:
--- Quote from: Aldo22 on October 17, 2024, 06:59:46 pm ---Hi
--- Quote from: DaneLaw on October 17, 2024, 06:30:19 pm ---You didn't check the specs?
--- End quote ---
Where are the exact ripple/noise specs?
--- Quote from: DaneLaw on October 17, 2024, 06:30:19 pm ---Do you have a picture of your setup..?
--- End quote ---
Not today, the setup is no longer there.
--- End quote ---
I posted a video some weeks back also in this thread. seems it's gone, at my end
Will see if I can find it.
Reason why I ask for "setup" is to get an idea if it is the DPS150 SMPS or third party your witnessing
*One moment please (credit bigClive)*
// I recall this video also refers to the DPS150 tolerances.
--- End quote ---
The specs .. you can find in the older DPS-150 thread..not sure why this OP (LeonR) decided to restart another DPS150-thread with no input, when there already was one, just below from a day earlier that would be hard to miss https://www.eevblog.com/forum/testgear/new-fnirsi-dps-150-mini-lab-power-supply-(30-v-5-a-usb-pd-powered)
Board pictures.(crude, from older vid)
Aldo22:
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. ;)
--- Quote from: DaneLaw on October 17, 2024, 07:07:41 pm ---Reason why I ask for "setup" is to get an idea if it is the DPS150 SMPS or third party your witnessing
--- End quote ---
The third screenshot above shows the source for the DPS -150 in the other cases. It is super quiet.
The measurement method is identical.
Thanks.
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version