Products > Test Equipment
Siglent SDG1032 high level limited to low ...
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2N3055:
What is going on here?
 :-DD
thm_w:
Wasn't the purpose of making a clipping circuit so you didn't have to screw around with these limit settings?
I've literally never heard or used a limit mode on a sig-gen until it was brought up recently.

Wonder what the bandwidth of those current limiting diodes is: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/380/CLD20B.pdf
Probably not high enough.
ebastler:

--- Quote from: 2N3055 on May 24, 2024, 11:02:55 pm ---What is going on here?
 :-DD

--- End quote ---

We are discussing a little design issue of a Siglent product and waiting for a white knight to come to Siglent's defense.  ::)
ebastler:

--- Quote from: newbrain on May 24, 2024, 09:38:52 pm ---Maybe it's not so, once more the OP

--- Quote from: ebastler on May 24, 2024, 04:37:08 pm ---just adds more confusion

--- End quote ---
with their second statement:

--- Quote from: eTobey on May 24, 2024, 04:38:09 pm ---It shows a 1.65V limit, and when i remove the 50 Ohm load, and suspect a 1.65V limit, i would get 3.3V.

--- End quote ---

--- End quote ---

Agree, that post does not make sense to me. Seems to describe things the wrong way round.

My understanding is that the "safety limits" always apply to the voltage the generator's output stage is allowed to provide. If a 50 Ohm load is connected, the actual maximum output voltage will be cut in half. I stand by my earlier comment that this requires a work-around if a user wants to use 50 Ohm loads, requiring them to set twice the safety limit -- and hence remains open to the risk of mishaps if the load is not actually present.
2N3055:

--- Quote from: ebastler on May 25, 2024, 04:42:16 am ---
--- Quote from: 2N3055 on May 24, 2024, 11:02:55 pm ---What is going on here?
 :-DD

--- End quote ---

We are discussing a little design issue of a Siglent product and waiting for a white knight to come to Siglent's defense.  ::)

--- End quote ---

None of it makes sense..
There is no design issue.
Just complete lack of understanding how it works. Even by you.

Newbrain tried to explain...

And only white knight coming to someone's defense is you defending eTobeys right to publicly post his weird questions that make no sense.
And you keep doing it systematically lately...
No matter how wrong the statements of his are.
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