pwr-electronics

True, but even GaN will eventually exceed that, and there are other applications that will benefit.

It's not, because I never argued against doing it. Oc asked "what's not to like?", and I gave an opposing perspective. Successful negotiation usually requires understanding what you're asking the other side to compromise on.

It's not a detail. It's a more complete picture. Both of your comments are different slices of the same pie.

I don't see anything written above that pertains specifically to any type of FET.

Your last paragraph is a new topic. It's true that Si can be as efficient as SiC and GaN, despite what the marketing usually says. But there are other benefits to new materials. They already support higher voltages with planar technology, and 3D will increase that further. Gate driving will get easier and more rugged.

You're conflating different things. People can already choose between public, private, and homeschool. The "credit" is a public resource allocated for a certain purpose under certain conditions. A union doesn't unilaterally decide anything.

You're entitled to choose a non-public school, to want to divert a public resource to yourself with fewer strings attached, and to want more leverage to disregard teachers' stakes in delivering education. Not everyone would agree with your conclusion that it "should" make things better, or that it's even necessary to make improvements.

The do need high frequencies. It's orders of magnitude slower than digital, but the amount of power being switched presents entirely new problems. You could flip your statement around and say that digital circuits are less complex because they're low power. But that would be equally meaningless.

Digital FETs are CMOS made with fins or whatever to switch as fast as possible. Analog FETs are something else to make clean predictable signals from mature manufacturing processes. Power FETs are big arrays of trenches to not destroy themselves. You can't really compare them. That would be like comparing a racecar to a passenger van to a rock hauler. They're all vehicles, but they have different purposes and success metrics.

You're talking about different things. A slow FET has a slow rise time. It spends more time crossing through the inefficient region between fully off and fully on. Switching frequency is how often you cross in one direction.

Up to a point, you can decrease total converter loss by trading conduction loss for switching loss by increasing frequency and resizing components. After that point, you start losing efficiency again. There's a sweet spot.

> the outcome of the meeting as far as I understood it was, what can Microsoft do to help?

Here's the problem. That's sales talk. If you're not buying, either give your sales pitch or quote them for consulting.

It's the US Space and Rocket Center for anyone looking it up. The vertical rocket is a replica. The sideways one is real, or mostly real. It's suspended pretty high up so you can walk below it. They host a weekly Oktoberfest event under it for a few months a year. In addition to the museum, they also give bus tours of NASA MSFC.

There's a planetarium nearby with a cool history made from the dome of an oxygen tank. UAH has a special collections room dedicated to the Apollo program. There are some other rockets on the side of the interstate near the outskirts to let you know you're entering rocket city.

If you plan carefully, you can see everything in a day.

Change your search strategy. Most forums require a membership to view them, and most long form posts are on personal websites. Google can't or won't serve those. You have to navigate like it's the old web. Find a good place to make landfall, read old posts, ask around, and follow all your leads.

It's a culture war topic.

C# is a well-regarded choice for the application layer in the engineering software world. You'd need a good reason not to choose it.

I briefly worked in one of the statistically worst states for bicycle safety, but I was still surprised to learn how many older people fantasized about running over cyclists, or had a "they probably deserved it" attitude whenever a cyclist was struck by a car.

One time, a couple of coworkers were riding single file in the generous shoulder of a wide nearly empty multi-lane road in the early morning when they were both run over from behind in a hit and run. One had to have his spine fused. I still saw the same attitude of contempt, even from coworkers who otherwise liked them.

I switched to mountain biking after that.

> I did this

Glad to hear you didn't actually do that. Returning digitally is still returning.

You made your class educationally worse and blame the students because you didn't ask for a photo of their work?

Imagine learning to code again. You're shown one for loop, a class header file, and a cartoon of a data structure. You write programs by hand on paper, submit them, and never get any feedback. And you're forbidden from looking at open source code. Some amount of struggle and self validation is fine, but unnecessarily wasting absolutely all your time on dead ends is a waste.

This type of bullshit is normal in crappy STEM classes. Universities are so concerned with keeping secrets that they won't give you the information in the first place. It's a sign of bad course design that's unfortunately common.

I took a couple classes that were like that, but I swapped the class for another subject those semesters and waited until it was offered again by a better professor. Same material, except I actually learned it instead of getting stuck at the starting gate.

Imagine having to size up the other vehicles before crossing a bridge instead of just worrying about yourself.

Btw, 1 ton = 2000 lbs, not 1000.

The real reason is to stimulate the national electrification capability by increasing the demand. This article is just typical marketing.

That's exactly it. Residential service is naturally the most expensive to operate. National regulations impose price caps on residential. But Texas is the only state that isn't subject to those rules because they're not synchronously connected to another grid. Which on top of that makes them less reliable, and thus more expensive.

I didn't really understand IEEE until I realized that they're more of an academic society than a professional society, despite what their marketing suggests. The academia mill is a weird way to fund training engineers for industry, and IEEE is just a forum for it.

> Knausenberger said the ACC team would “streamline [existing programs] into one endpoint solution that meets our security, operations, and UX needs.”

Sounds like they're going to get the F-35 of antivirus software. Having multiple programs might not be the problem, but consolidating to just one is an easy sell for a lucrative non-solution.

I don't know about DRM. Be careful when joining batteries in parallel. You might not get full performance without the factory procedure for mating the battery and BMS together. Datasheets aren't enough to fully match cells, so the reliability and safety might be less.

I have no idea about commercial e-bike BMS specifically. But in general, some BMS can, while others won't but maybe should because replacing cells can reduce the safety of the product. It depends on a combination of the cells, BMS, charger, and load. You shouldn't mix old and new cells in the same pack.

From a user perspective, it protects you from the battery (by protecting the battery), increases the performance and longevity, and informs you about the state of charge. It connects to the battery at the cell terminals and to temperature sensors. A charger is a separate thing from a BMS.

Does that mean they're not doing usability studies anymore?

When I worked in aerospace, there was a big, one-of-a-kind piece of metal where the fabricators had drilled a bunch of rivet holes in the wrong places. The structural engineers had to figure out if they could still use it. There's bugs in everything.

Anybody remember the analog clock in the Chrysler Sebring?

I have, using Handwriting Repair by Briem. It was less work than I expected, and my handwriting looks pretty cool now. Even if you don't adopt the italic style advocated by the book, the other advice is still generally useful. I printed out the tracing page and did that a few times a day for a few days to get familiar with it. After that, it took a while, but it eventually became natural to write that way. The italic style helps with writing fast.

https://sites.google.com/view/briem/free-books/handwriting-r...

If you really want to get deep into the topic of wood choice for self-bows, The Traditional Bowyer's Bible series is a classic.

There's nothing deficient about transmission lines or lumped element models for answering the riddle. Distributed element models of transmission lines [1] clearly show a straight line path directly from the battery to the bulb without going through the whole wire.

Electroboom's criticism is that even if you're not misdirected by the setup, there's still a missing assumption required to arrive at the same answer as Veritasium.

[1] https://en.m.wikipedia.org/wiki/File:Line_model_Heaviside.sv...