Direct current

This slow flow provides superior thermal stability, uniform cell balancing, and generates significantly less heat.

On the flip side, we have the fast force of DC fast charging.

Shoving massive amounts of high voltage energy into the cells at rapid rates is like blasting it with a fire hose.

Great in an emergency, sure, but stressful to do every day.

I've been a member of the ARRL for years.

My reasoning, and it's the same reason I belong to the Israel Amateur Radio Club in Israel, is that it's for spectrum defense, meaning that we have this wonderful international park of spectrum from D.C. to blue light.

that needs defending in the halls of Congress and internationally so that we don't lose it to other services that would like to have it.

So for me, the biggest reason to belong to the ARRL is to support its spectrum defense efforts.

But in order to make the system function, Tesla realized he needed to figure out how to rotate magnetic fields.

Strolling in the park with Anital Szigeti in February 1882, Tesla had a sudden stroke of genius and solved the rotating magnetic field problem, going on to explain the concept of the induction motor to his friend by drawing its basic blueprints in the sand with a stick, outlining a new type of engine that unlike its direct current or DC counterpart, did not need a commutator, an inefficient cylindrical device segmented with metal that had to be regularly maintained.

Impressed by Tesla's genius, Tivadar Puskas recommended that Tesla move to Paris to work for his old acquaintance, Thomas Edison, at his Continental Edison Company, a firm that specialized in electrical equipment where he was first assigned by his boss, Charles Batchelor, a manager who had worked for Edison since 1870 with designing dynamos, a contraption that converted mechanical energy into electrical energy and which was used most commonly in direct current circuits.

Off the clock however, Tesla continued to advance the AC theory after he was sent to work on a project in Strasbourg where he built the first induction motor prototype.

Tesla soon found himself in another personal finance crisis after spending all of his wages, yet he had done enough during his stint at the company to impress his overseer, Charles Batchelor, who was convinced that Tesla had the intellectual fortitude to work alongside Thomas Edison himself.

In 1884, after being mistakenly registered as a migrant from Sweden after the immigration officer misheard him saying Smiljan, Nikola Tesla arrived in America armed with an introductory letter penned by his mentor, Charles Batchelor, who stated, quote, "I know two great men.

One is you, Thomas Edison, and the other is this young man." Although Tesla fundamentally disagreed with the notion of direct current, he was put to work improving the DC motors devised by Edison, who believed that the AC devices that Tesla envisioned were too dangerous and unfeasible, a diversion of opinion that would become a lifelong rivalry.

Forced to develop an invention he had no belief in, Tesla became disillusioned and began outlining the weaknesses of DC and championing the advantages of AC, pointing out the inefficiency of Edison's direct current, which only dimly lit lamps and proposing instead that generators should be engineered with what he termed the polyphase principle, whereby energy would be constantly recycled since he believed in the cyclical nature of electricity.

I have it under the texture saying, not quite true, Adam.

Okay, it says high voltage DC is more efficient over long distance.

You're right, actually.

I got that backwards.

And they shouldn't be something that a municipal council weighs in on one way or the other.

Texture 71010 writes, not quite true, Adam.

High voltage, it says, DC is more efficient over long distance.

That makes more sense.

If you're correcting me, if I've made a mistake, you're actually helping me, so there's no need to apologize.

Texter writes, HVDC, high-voltage direct current, I assume it says, is more efficient over long distance.

It doesn't waste power on inductance and capacitance by alternating, it says.

There are losses to convert it, though.

So it's not always the best as an overall system, it says.

But the longer the distance, the more HVDC makes sense now over HDAC in general.

So I did some Googling during the break, and it's actually fascinating.

There's a difference between underground and submarine cables and held up by power poles in the air cables.

And I think, you know, as I said, the battery management has evolved.

I mean, we've been talking about DC accuracy, which is kind of like a more basic form of accuracy for the battery management that's been there for a long time.

And then we have the newer technologies like electrochemical impedance spectroscopy.

We have temperature sensing.

When you're talking microinverter, you're talking about a complete inverter, right? Yep.

So it has the full conversion platform to convert DC to AC from the module.

It includes a maximum power point tracker.

One panel or a hundred panels, it's just one inverter per panel.

But anyway, you know, the financial reality is market size and when you've got a big company, that's what they're looking at.

I wanted to actually – Find out the difference for the people who don't know.

The difference between a microinverter and a product that's a DC optimizer.

So if you could just sort of explain what a microinverter actually is and how it works and how it differs from a DC maximizer.

So transforming voltages in spintronics is actually a lot easier than in regular circuits.

You can easily do it with DC, whereas with electrical circuits, you need alternating current.

There's even something analogous to an ammeter, a device that indicates the amps in a circuit, how much current is flowing.

It doesn't give you a reading, instead it gives you a pitch.

And a high pass filter will filter out the low frequency signals, leaving the high frequency signals.

How does it do that? Well, this is an inductor and it's in parallel.

You can think of an inductor as a short circuit for low frequencies and DC.

After all, DC is just very low frequency.