Products > Test Equipment
Lab Power Supply Turn ON and OFF Characteristics
Furna:
--- Quote from: mawyatt on October 08, 2024, 12:50:53 am ---If you or Furna have the time please check the SPD4000X in Series Mode and see if CH2 and CH3 display the correct current drawn respectively. Just place a resistor across either CH2 or CH3 and see if it registers properly on the respective channel display, then attach across the full series span of CH2 and CH3, this should show twice the current and displayed in both channels as flowing thru both.
--- End quote ---
I do not have much time now; but
https://www.eevblog.com/forum/testgear/new-siglent-spd4000x-series-power-supply/msg5630671/#msg5630671
Maybe tomorrow I can go through this better.
Furna:
CH2 in series with CH3
CH2 is "master"; you cannot setup CH3
CH2 set to 5V and 5Ω
01_IMG_20241008_230601.png
10Ω across CH2 (red and black cables)
CH2 shows total volatge 5V (CH2+CH3) 0.247A demonstrates CH2 outputs 2.5V
CH3 outputs 2.5V but note green cable disconnected => 0A
02_IMG_20241008_225937.png
10Ω across CH2 (red and black cables)
50Ω (2x100Ω in parallel) (blue and green cables)
CH2 shows total voltage 5V (CH2+CH3) Amper is again the sum (CH2+CH3) 0.346A
CH3 shows 2.5V and 0.1A of CH3
03_IMG_20241008_235241.png
20Ω across CH2 (red&black)
50Ω across CH3 (yello&green)
10Ω across the series (red&green)
mawyatt:
@ Furna
Thanks for the post, could you repost the above over here:
https://www.eevblog.com/forum/testgear/power-supply-series-mode-for-split-dual-tracking-use/
We have response prepared but realized it's better in the above thread for folks to follow, and didn't want to copy your post without permission, and didn't want to clutter this thread up since it's dealing with ON/OFF characteristics.
Best
KungFuJosh:
--- Quote from: mawyatt on October 09, 2024, 01:43:11 am ---could you repost the above over here
--- End quote ---
You can quote him from this thread in the other thread with a little copy-paste magic.
colorburst:
* Harrison 865C
* Mastech HY3005D-3
* Electro Industries DIGI-35A
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