Electronics > Beginners
how does blackdog's PSU work?
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blackdog:
Hi,

Here are some pictures of a test with the Jim Williams dynamic Load.
The current in this measurement is from 0,5A to 2A.
Opamp is the NE5532A.
Sensitivity of the scoop is 2mV/Div, no and I am not lying now  :-DD

This is the current puls, and yes, it is clean. 0.5 to 2-Ampere.


This is the respons on the power supply connector, about +-3mV abberation.


One of the the test setups.


This is a picture how i make a coax connection to the scoop or measuring amplifier, is has a angel of 90 degrees,
The BNC connector has an angle of 90 degrees to keep the coupling with the output wiring as small as possible.



Kind regards,
Bram
blackdog:
Hi Cerebus,

OK This...
My experience of him tells me that Tim is both knowledgable and experienced, and generally quick to help.
You can do one of two things, you can take advantage of Tim's interest and possibly improve the design or you can take offence, the choice is yours.

So Tim is "mister know it all" (your opinion  :) ) and who am i, to reply on thing he says...
Uhm... Ooo Wait, I have designed this power supply and measured it extensively for my applications.

but you choose to ignore that and over-react to the questions and criticisms
Of course, I have not read that, and do you have a crystal ball?

The points that Tim touches I have a different opinion, and yes Tim, like me, is entitled to his opinion.
And yes, I think that Tim does have good knowledge of electronics, but I am not crazy either.

But, let's talk about power supply's designs and their set-up and applications  ;D

Kind regards,
Bram
Cliff Matthews:
Know-it-all's inject their image even when not wanted. I could make money just copy-pasting an encyclopedia out of Tim's contributions everywhere. I'm stupefied he never gets enough thanks. And.. if he's ever wrong, he's the first to facepalm himself.

Now back to your wonderful design good sir..  :popcorn:
steverino:
I have the greatest respect for Tim's knowledge and helpfulness.  I always thought he should be donated a "dumpster" scope for his prodigious contributions to this site (I think Tim is actually part electron  :D).  Things seem to have gone off the rails when the strong word "liar" was used, which, understandably, Bram  (blackdog) became defensive.  (look at the trouble you created, exe  ;))  Hopefully, the discussion will continue without the heat.
Cerebus:

--- Quote from: blackdog on March 19, 2018, 06:24:13 pm ---Hi Cerebus,

OK This...
My experience of him tells me that Tim is both knowledgable and experienced, and generally quick to help.
You can do one of two things, you can take advantage of Tim's interest and possibly improve the design or you can take offence, the choice is yours.

So Tim is "mister know it all" (your opinion  :) ) and who am i, to reply on thing he says...
Uhm... Ooo Wait, I have designed this power supply and measured it extensively for my applications.

but you choose to ignore that and over-react to the questions and criticisms
Of course, I have not read that, and do you have a crystal ball?

The points that Tim touches I have a different opinion, and yes Tim, like me, is entitled to his opinion.

--- End quote ---

If you wanted to prove that you react badly to even the most lightly implied criticism then you have succeeded.


--- Quote from: blackdog on March 19, 2018, 06:24:13 pm ---And yes, I think that Tim does have good knowledge of electronics, but I am not crazy either.

--- End quote ---

Again, nobody said that you were crazy. You just choose to be prickly and take offence at things that aren't said or implied.

I also think I catch a whiff of Dunning–Kruger effect here. You've clearly learned a bit, but you act as if you've learned it all, because you act as if you're too good to listen to anyone else.


--- Quote from: blackdog on March 19, 2018, 06:24:13 pm ---So Tim is "mister know it all" (your opinion  :) ) and who am i, to reply on thing he says...
Ooo Wait, I have designed this power supply and measured it extensively for my applications.

--- End quote ---

You've designed and tested one power supply and you imply that is the ultimate in qualifications. That is being a "know it all" on scant evidence.
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