Inverters, How do they work?

Inverters have taken a prominent role in the modern technological world due to the sudden rise of electric cars and renewable energy technologies. Inverters convert DC power to AC power. They are also used in Uninterruptible Power Supplies, Control of Electrical Machines and Active Power filtering. This video will explain how to get a pure sinusoidal electric power output from DC power input in a step by step logical manner.

I thank Mr. Nachiketa Deshmukh for his extensive technical support in creation of this video. He is a Phd scholar at IIT Kanpur. Check out his Google scholar profile.

[MrMavrez]

I'm Eletrical Engineer, I would like so much has in that time a high quality material to learn simple like that. Congrats for your work and many thanks to keep posting intelligent and crucial videos for all professionals!

[yetanothermusicboi]

After years of "Audio Engineering" (Very loose emphasis on the engineering part, Lol) this has demystified a massive chunk of it all for me. This is awesome material. Currently building a Neve 1073 microphone preamp clone, and this is going to help me quite a bit to wrap my gourd around what each component is doing. Mind blown.

[Rancrom]

Only two days ago I was looking for a decent video explanation of an inverter and found nothing. Can't believe you released this, it is exactly what I was looking for! Perfect explanation!

[jaypearce]

This was quite good. I've studied electronics several times in my life and still struggle with understanding. I'll follow you now

[tcbournezsn]

ABSOLUTELY the best engineering videos! Couldn't agree more and very thankful to find you guys. Keep us the amazing work!

[Dermorder]

You guys do a great work, you summarize a whole semester class in a few minutes!

[fuzzygenius]

You guys make the best engineering videos, period!

[alvaros.]

So, to generate a pure sine wave, you only need a pure sine wave, a triangular wave and a comparator... but, how do you get the pure sine wave to compare with the triangular one?? It's like "dehydrated water; to get water, just add water"...

[matrixate]

A whole semester was unsuccessfully spent in trying to learn what this this 7 minute video taught.

[phamhuutri]

Im a bit confused here. Where does the sine wave that we use to compare with the triangle wave come from ? Are we supposed to create a sine wave from the DC signal ?

[Jarrod_C]

Ok this was decent. But I would have liked more in depth on the smoothing to create the sinusoidal wave. Also where did the triangular wave come from?

[UTubFllr]

I like this kind of educational videos, Making the technology easier than they are .

Your simplicity of concepts is awesome!

[normansmith]

for a second I read "Introverts, How do they work?"

[nikolaibeloslydcev]

Хорошо объяснено, жаль что я незнаю английского, всё понимал по диограммам и схемам, спасибо вам !

[mohammedalmukhtar]

I wish they were simplifying things for us like this in school.

[thomasmaughan]

The reason for NOT simply producing high power sine wave is heat dissipation. When a transistor is "off" there is no current, hence no power dissipation; when it is fully "on" there is no voltage across it (well, not much) but lots of current; still not much dissipation as heat. The problem is between those states, you have a combination of high current and pretty substantial voltage drop, particularly if you have a reactive load such that max current hits at the same time as max voltage drop. A small 300 watt inverter will be consuming over 300 watts all by itself to deliver 300 watts; or an efficiency less than 50 percent.

Consequently it is crucial for the transistors or MOSFETS to be either fully ON or fully OFF and never half-on. MOSFETS are chosen for rapid switching, insulated gate and most of all, very low "on" resistance. This produces high efficiency and low heating of the inverter. But they can self-trigger if feeding a highly reactive load so that's a thing to watch out for. If that happens you'll know it because you will either blow a fuse (circuit breakers are too slow) or the MOSFET will simply explode.

[eneasota]

0:56 The circuit is called H-Bridge, which has many applications, one of them is the full bridge inverter.
The full bridge inverter is a device that uses other circuits to control the H-Bridge as needed.

[vini]

Thanks 🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻 for free educational video ...

You live in my heart as a good man & teacher

[SabinCivil]

Please support us at . Your support keeps us going !

[fyfwow]

short, clear and accurate my professor spend 4 hours to explain these things