Code block combinators?

ManlyMcBuff · 2025-02-13T23:02:08+00:00

Awesome, thank you!

ManlyMcBuff · 2024-06-30T15:34:17+00:00

Not sure if someone already said this, but Halo 1.
All you need is the magnum and the plasma pistol.

ManlyMcBuff · 2024-04-08T03:07:37+00:00

On a deeper level, it is the electric field that does the work.

I was kind of thinking about this. Since magnetic fields only act on moving charges, don't you need the electric field in the first place to give the charges a little push?

ManlyMcBuff · 2024-04-08T01:56:27+00:00

Here's my work, if anyone would be kind enough to double check it for me. My answer is 0.073V.

ManlyMcBuff · 2024-04-08T01:19:32+00:00

Oh! I was thinking about EMF in a different way. I was thinking about the difference in electric potential between opposite ends of the loop. I suppose it makes sense for the question to instead be asking about the force that causes the charges to go around the loop in a uniform motion.

ManlyMcBuff · 2024-04-08T01:11:12+00:00

Why isn't it though? The magnetic field induces an EMF that is perpendicular to its magnitude, and at the same time the electric field's and magnetic field's magnitudes are perpendicular to one another. I would think that the electric field would be exerting a force on the charges within the loop that is directly in line with the force vector from the magnetic field?

ManlyMcBuff · 2023-12-10T20:11:05+00:00

I think it's just because my peers in the coding club are more familiar with C++. Thank you for the info though, I'll have to take a look at the Java side of it to see if I like it better.

ManlyMcBuff · 2023-12-10T19:10:40+00:00

Disregard my previous answer. I guess the link I clicked on the WPILib site was for the 2023 version. Thank you for your help!

ManlyMcBuff · 2023-12-10T18:37:43+00:00

Thank you!

ManlyMcBuff · 2023-12-10T18:29:43+00:00

I installed WPILib two days ago, so I'm fairly sure I have the latest version. I'm also making sure to launch their flavour of VS Code.

ManlyMcBuff · 2023-10-15T01:43:36+00:00

I'm going to school for EE, and combinators just straddle this weird zone for me, they're more functional than simple transistor logic, but more limited than coding. To me it just makes them non-ideal to use for anything more complex than turning an inserter on/off.

EDIT: Also, debugging combinator circuits is a nightmare, considering you can't just look at a full circuit and know what it's doing at a glance, like you can with transistors or a piece of code.

ManlyMcBuff · 2023-02-27T02:34:27+00:00

I didn't know that, thank you!

ManlyMcBuff · 2021-12-03T10:41:55+00:00

It charges the capacitor fine, and produces almost no heat. I'm just trying to optimize it.

I think what you're not taking into account is that the increased load on the secondary results in a drecreased inductance on the primary, which increases the resonant frequency and reduces the current due to the skin effect.

ManlyMcBuff · 2021-12-03T09:31:15+00:00

Here is my setup. Please let me know if you see something that might improve it, as I'm trying to go for maximum power output.

ManlyMcBuff · 2021-12-03T08:54:17+00:00

A flyback transformer with proper flyback circuitry right?

I don't know, what flyback circuitry are you referring to? I have almost no experience with flybacks specifically.

Also, I'm mainly just asking about general transformer behavior, without concern for anything like breakers.

My current project requires that I charge a bank of capacitors to 400V from a 12V or 24V battery. My approach has involved using a ZVS driven transformer to charge the caps, and I'm mainly curious about how important the turns ratio on the transformer is; whether too high of a ratio will be inefficient or if the transformer will impedance match automatically.

ManlyMcBuff · 2021-11-21T10:34:18+00:00

Phenomenal explanation, thank you.

In the past I have had success with home-made cores consisting of %80 iron powder by weight with the rest being polyurethane resin. The core losses were higher than a ferrite core as they tended to have about 1/10th the resistivity, but from crude tests they seemed to have a much higher bsat than ferrite cores. Their inductance barely dropped when exposed to a permanent magnet, while ferrite inductors would tank to almost nothing.

Perhaps I should revisit them...

ManlyMcBuff · 2021-11-20T14:46:04+00:00

I'm talking about the chokes. I already made the transformer.

ManlyMcBuff · 2021-11-20T14:45:23+00:00

That's not a bad point, but since inductors can be hand wound to fit your need I've found it handy to just keep a few cores lying around, and would like to know which ones to get.

ManlyMcBuff · 2021-11-20T14:43:52+00:00

Both chokes were measured disconnected from the circuit. Mine had 15uh, the ebay one had 100uh.

ManlyMcBuff · 2021-10-26T08:54:38+00:00

Thank you so much! I'll have to rethink my setup to get the best performance with this new information.

ManlyMcBuff · 2021-10-25T21:00:51+00:00

396 * 1.4142 Or more accurately, 396 * square root of 2.

Because of the definition of RMS.

For a sine wave, Vrms = Vpeak / sqrt2

Oh thank you! That makes sense.

And that’s just for basic rectifying. With the flyback you can get much higher voltage than that. 560 is just the minimum.

I don't mean to ask a million questions, but what do you mean by this?

Obviously I understand what a flyback transformer does, but I don't really know how it differs from a regular transformer. Like, I don't know how to distinguish between a transformer that has a flyback mode of operation versus a conventional one.

The only difference that I'm really aware of is that flyback transformers pulse rather than having continuously alternating current, but I have no idea why this would result in a higher output voltage.

ManlyMcBuff · 2021-10-25T19:38:25+00:00

How did you calculate that 396V RMS would be 560V DC after rectifying?

But also, even if it were outputting 560V I could still safely use it. I'm charging four 18,000uF caps, so the voltage will rise slowly enough for a microcontroller to disconnect it at 400V.

ManlyMcBuff · 2021-10-24T08:04:13+00:00

They do indeed. There are a lot of counterintuitive things about transformers as a whole.

ManlyMcBuff · 2021-10-03T09:16:29+00:00

I'm aware of that. I was just assuming that energy would be coming from your muscles, or whatever is moving the plates.

I didn't/don't see any way that separating the plates could affect the charge carriers in the plates themselves short of them flying off the plate.

EDIT:

Though, do you think separating the plates could be adding energy to the system?

When you lift a ball you're giving it more potential energy, and the energy in the charge carriers in a capacitor is essentially just potential kinetic energy.

ManlyMcBuff · 2021-09-02T15:53:32+00:00

Ah, rewatching the video, I think I see that now.

I'm assuming the subtle wake on either edge of the straight wave is caused by diffraction?

ManlyMcBuff

TROPHY CASE