Peltiers limit their own current, right?

Wow, I'm tired. Yawns.

@Roh So?

Hi

morning

I have a bit of a hand-waving question too...I have a 48V SMPS driving an erratic load

The over-voltage protection on the supply is triggering occasionally. I think it's because the regulation isn't fast enough to react to sudden drops in the load.

The OVP is probably set to somewhere between 54 and 56V. We are talking about a load that, to my best guess, varies between one amp and 3-6 amps or so.

I received a vague suggestion to use a capacitor. And this answer suggests a TVS: electronics.stackexchange.com/a/6560/35364

A TVS diode seems ideal for inductive spikes, but I'm not sure if it's right in this case.

Hi

@abdullahkahraman Nevermind, after 1-2 days! that was just a "breaking news". LoL!

I don't know why some simple questions like this get up-vote?

@Roh oh, OK.

@abdullahkahraman What are you doing now?

I like KiCad very much!

@Roh This is a 20A DC motor controller

I am not sure if those traces will handle it :)

@abdullahkahraman 20A!!!! that's not wisly abdullah!

@Roh yeah, lol :)

@abdullahkahraman that's too much big

@Roh Well, I am given this, and I am trying to do it..

This one is the one I have copied lots of ideas from:

electromen.com/en/products/item/motor-controllers/…

I got to go, see you!

@abdullahkahraman Nice job

Why don't you use a prepared?

That would be cheaper if you pay your money for a prepared motor driver.

@Roh What is it about the question you don't like? I see it as a teaching opportunity regards of how "simple" it is.

mornin @placeholder

MOrning! AM I allowed back in? It has been at least 3 months.

@placeholder of course

@W5VO more like "off course" ... How goes the project for your thesis?

@placeholder Welp, any time your circuit causes the foundry to change the DRC rules...

We've got a tapeout in a week or so

@W5VO Psssh, I do that all the time! HAve you been getting much sleep?

Hi guys !

@placeholder a sustainable amount for now

@CopperMaze hi!

I need your opinion about this: coppermaze.files.wordpress.com/2014/06/image-1.png

@CopperMaze What is it?

@W5VO So how far away are you from your defense? you're still collecting data right?

@placeholder I've got to wait for results from this tapeout

@W5VO So my question is ... how many extra circuits have you placed on the reticle with the main project?

@placeholder Well basically you plug an ATX PSU behind it and then it allows you to manage the 12 - 5 and 3.3V output. And it's an Arduino Leonardo based system.

@placeholder How many copies, or how many different circuits? I have a simpler version that could be "wire bond integrated" if push comes to shove

@CopperMaze Manage how?

@W5VO Different cct's. The temptaion is always " I have some spare area, and the cost of NRE is high so why don't I just quickly add this little experiment" when in reality you never get around to testing those ideas becuase you're busy.

@ThePhoton long time no type!

Well all three outputs have a voltage/current/power measurement and can be shut off depending on your parameter (voltage/current/power limits). So you don't burn the ATX PSU and or your project if something go wrong.

@placeholder Howdy do?

@ThePhoton Howdy duty!

@CopperMaze That might be useful. Fuses are useful too.

@CopperMaze Personally, I would like to have a GND post for every power post.

@placeholder Lol, yes. In this case those are more like 'software fuses'.

@ThePhoton Yep, I will try to fit them

Welp, the day stacks up and I have to move on. Ciao!

@placeholder I got to re-do some stuff I did in grad school, using Verilog-A instead of MDS. That was fun.

Also the ground was a bit wriggly around here Sunday morning.

@ThePhoton OH yes! I'm sorry, I forgot all about your locale. I assume no cracked walls or anything, perhaps some stuff fell off the shelves.

@placeholder In the south bay, not even that. Just woke up wondering what was going on, then went back to sleep.

@ThePhoton MDS ? Que?

@placeholder Precursor to ADS.

@ThePhoton THat's why I don't know what it is, MDS = MIcrowave Design System. Never used it.

@ThePhoton THat's good.

gotta run

@placeholder It's a shame that a simple question and primary get more than 8 up-vote! really seems that many guys isn't familiar with this type of supply.

Hi guys

@Roh It's a hot network question now so it's getting a lot of attention.

@ntoskrnl Maybe! While there are a lot nice and great question and answer in the EEse, now this simple question is one of the funny and ridiculous question!

When I saw it, I thought it would be a duplicate question or get more down-vote! but now...

@Roh It can't be a duplicate unless someone finds a question it duplicates.

Ek HEM... Is anyone currently active here?