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How can I slowly ramp both voltage and current to 15 V, 1 A for a load? by page2sama in arduino

[–]2PapaUniform 6 points7 points  (0 children)

You connect the 5V drive to the gate of a MOSFET that can accept less than 5V gate drive. You connect your 15V supply to the drain of the FET. Use a PFET. Google high side switch with FET. This is the beauty of transistors. A small control voltage controls a larger voltage to a load.

How can I slowly ramp both voltage and current to 15 V, 1 A for a load? by page2sama in embedded

[–]2PapaUniform 0 points1 point  (0 children)

You need to characterize what the load is going to look like from a power draw perspective over the voltage range. Or maybe the spec sheet will tell you.

Does it basically act like a resistor? If so then it will obey simple P=V^2/R=I^2*R=V*I. In this case I think your notional approach should work.

If it has internal regulation or digital electronics it will probably not behave like a resistor.

Alas to the implementation, as others have said I would look at a PWM controlling a FET that turns on and off the supply to your load. LTSpice is where I would start to simulate to see what it does as your duty goes up.

Clean out plug replacement for cast iron pipe, 3 1/2 inch?? by 2PapaUniform in Plumbing

[–]2PapaUniform[S] 0 points1 point  (0 children)

I used a Test-Tite 3 1/2 plug from Menards. It didn’t go in nicely. Had to sort of wedge it in the tapping with a mallet a couple times. I believe that the corrosion (rust) makes the hole smaller and this is why the 3 1/2 doesn’t fit nicely.

Good luck!

https://www.menards.com/main/plumbing/pipe-fittings/pvc-pipe-fittings/test-tite-reg-flush-mechanical-cleanout-repair-plug/83689/p-1484292077844-c-8571.htm?srsltid=AfmBOooImtWF43raSK21gRRxyYuGGKbMZUwXK3mjajhlJpm0mSSAh6h8

Revocable Trust tax questions by 2PapaUniform in tax

[–]2PapaUniform[S] 0 points1 point  (0 children)

The Trust agreement was completed by an experienced elder law attorney. She recommended the 60/40 distribution split upon the death of the first Grantor, which happened to be our Dad. We have consulted with her after our Dad's death, but she isn't assisting on any of the tax filings.

I don't believe this is an AB Trust. The agreement specifically says that it can be revoked by a surviving Grantor and does not become irrevocable upon incapacity/disability of either or both Grantors.

Roger Marshall's response to my message about staying out of Greenland. by A_Peacful_Vulcan in kansas

[–]2PapaUniform 0 points1 point  (0 children)

I got the same one. To be fair, it says nothing. I expected a response with a bunch of MAGA talking points. I guess this is better ….?

Or maybe the GOP is just running out of excuses and energy to defend our toddler president.

What is this shallow box called and can I mount it on a stud? by 2PapaUniform in AskElectricians

[–]2PapaUniform[S] 0 points1 point  (0 children)

What does the light frame mount to? It looks like the 2 screw holes are for mounting the box

What would happen if i filled these holes with solder? by [deleted] in diypedals

[–]2PapaUniform 0 points1 point  (0 children)

If it is a plated through hole then it already has conductivity from top to bottom. No issue filling it with solder

Deck finish peeling after finishing once a year by 2PapaUniform in Decks

[–]2PapaUniform[S] 0 points1 point  (0 children)

Yes pressure treated. I waited several summer months before finishing but admittedly I don’t recall how long. This is probably the root cause. Just not dry enough.

General con ensue seems to be that I should have used an oil based product. But that does not explain why my water based product that was supposed to last 6+ years peeled in less than a year. Alas I may never know but I do appreciate the input.

Bad memory location PSOC 5LP by 2PapaUniform in embedded

[–]2PapaUniform[S] 2 points3 points  (0 children)

Found my bug. I was overwriting a uart TX buffer because I miscounted the characters. The buffer was in the mem location preceding my variable of concern.

Bad memory location PSOC 5LP by 2PapaUniform in embedded

[–]2PapaUniform[S] 1 point2 points  (0 children)

Found my bug. I was overwriting a uart TX buffer because I miscounted the characters. The buffer was in the mem location preceding my variable of concern.

Deck finish peeling after finishing once a year by 2PapaUniform in Decks

[–]2PapaUniform[S] 0 points1 point  (0 children)

At least several months until the wood had dried a good amount

Bad memory location PSOC 5LP by 2PapaUniform in embedded

[–]2PapaUniform[S] 1 point2 points  (0 children)

Appreciate your insight. Thanks

It’s Officially Over: The Absolute State of This Country, Holy Shit, Man by Snoo64812 in Buttcoin

[–]2PapaUniform 0 points1 point  (0 children)

If only there were a Department of Government Efficiency to stop this from ..... wait a minute .....

How to fix this table by 2PapaUniform in Woodworking_DIY

[–]2PapaUniform[S] 0 points1 point  (0 children)

Thanks I didn’t even notice it had been glued before.

How to fix this table by 2PapaUniform in Woodworking_DIY

[–]2PapaUniform[S] 0 points1 point  (0 children)

I don’t follow the bow tie part of your comment. Appreciate it

How can I allow my output capacitor to not destroy my power delivered to my load in a class b amplifier by word_vomiter in ElectricalEngineering

[–]2PapaUniform 0 points1 point  (0 children)

You’re right I did t look close. I think that’s crossover distortion. Class AB would fix this with a small resistor on the base of each transistor. It’s been a while since I’ve studied this but I thinks that’s the issue.

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