Forbidden Outlet

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trey kule
Posts: 71
Joined: Wed Feb 12, 2020 3:18 am

Well this thread title was misleading!

Carry on


Slick Goodlin
Posts: 831
Joined: Thu Jan 16, 2020 3:24 am

Colonel wrote:
Fri Mar 29, 2024 5:54 pm
The 400Hz thing is freaking me out. For a purely resistive load (eg Nark's hotplate) it probably doesn't
make a difference but ... wouldn't some power supplies have a cow? For noise frequencies, if nothing
else?!
I hadn’t considered noise. I figured that the higher frequency would just move the lumps in the rectified AC wave closer together. Maybe they’d be nearly smoothed all the way out if this little guy has any filtering in it:
Image
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Colonel
Posts: 2409
Joined: Wed Jan 15, 2020 10:02 pm
Location: Over The Runway

As I said, I'd love to put a scope on your DC outputs ... the values of L and C are tuned to filter
out specific frequencies in the resulting rippled output, working with whatever R load is expected.

This is actually called an RLC circuit and is modelled by a second order ordinary (not partial) differential equation.

https://www.circuitbread.com/study-guid ... r-circuits

Remember that solutions to 2nd order ODE's that have poles in the right hand plane are unstable,
which is why the Polish Air Force never flies right echelon.
Neil Peart didn’t need you to be his friend
Slick Goodlin
Posts: 831
Joined: Thu Jan 16, 2020 3:24 am

I recognize most of those on their own as words, yes.
Nark
Posts: 576
Joined: Wed Jan 15, 2020 9:29 pm
Contact:

IMG_4020.jpeg
Somebody was kind enough to take a pic of a pigtail Amazon plug; one of three forbidden plugs.
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Twin Beech restoration:
www.barelyaviated.com
Slick Goodlin
Posts: 831
Joined: Thu Jan 16, 2020 3:24 am

Nark wrote:
Mon Apr 01, 2024 5:28 pm
IMG_4020.jpeg

Somebody was kind enough to take a pic of a pigtail Amazon plug; one of three forbidden plugs.
I’m reasonably confident I don’t have that outlet but I also feel like my next day at work I’m going to learn something.
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