All i have to say is just WOW! I've never met such a thorough and still easy to understand explanation! This is thanks to al the graphs, pictures and analogical examples! Love your work, man!
I've worked for Danfoss Dives NAM for 15 years and just took on an electronic tech position. Imagine my surprise when this video was sponsored but my company. ❤️ I appreciate your videos very much.
Watching different video's on this topic because sometimes different methods of explaining can help embed learning but I find this series very comprehensive. Well done & Thanks TEM!
Nice video A couple of minor things. It's important that one set of switches open before the others close. If closed before open (as narrated) then a short circuit will result and the IGBTs will disintentegrate. It's called shoot-through. In the 3 phase animation, the active Mosfets should swap to the other pair for the negative half cycle. :-)
Amazing. I install these heat pumps and have been to several of the manufacturers training seminars. I still never understood what was going on, why they where called inverters or what pwm was used for. This makes sense to me now.
Very interesting way of explanation, and super concentrated information with supportive real time animations! Really highly appreciated! Thank you very much 👍👍👍👏👏👏
The best channel to learn electrical engineering........ I am not an engineering student... but your way of teaching is so easy and knowledgeable that even a non engineering student can also understand it ..
An Important point that I would like to mention is that the identifying attribute of a DC is that it flows in one direction but, it is not always at it's peak. For learning purposes, ommiting the fact that DC can fluctuate at specific frequencies and transmit data signals is convenient as to not confuse new learners. Although, to say that DC is always at it's maximum is simply not correct as a definition. Great content btw! Glad you are able to make such excellent educational videos.
My dad was an engineer and I've been really curious about how our solar panels work and he mentioned an inverter converting the voltage from the panels which I think was about 12 and comes out 220 to make our television work. He couldn't explain how inverters exactly does it so I've been searching for it. Since I dont study engineering (im still at highschool) I cant fully understand this but it gives me the idea how it really works maybe I should start learning the very basics before this
Good to see you have the electrons flowing in the correct direction. People please keep in mind that if the diagram simulator was showing conventional current, the diagram simulator (not reality) would be flowing in the opposite direction. In reality electrons flow out of the negative source when power is being used. This is important because the direction of electrons over a resistive load determines the positive and negative voltage potential differences induced on the terminals of the resistive load.
Non-engineer here.., I feel like I am understanding it to a point. If you are using the PWM to vary the speeds of an AC motor, wouldn't this put a lot of stress on an AC motor that was designed for 50 or 60 HZ? Or do these need to be more robust AC motors designed to take the stress or variable frequencies? Awesome informative video! Thanks!
Awesome! Thank you for spreading knowledge to guys like us who are in other streams of engineering and desperately wants to know how these electronic equipment works! Thank you!
Very great videos! Only thing that may help non-engineers (by trade) is the pacing of the video can be fast between topics and main points for this processing the information. Really love the presentation and explanations. Thanks!
Wow, I understood that on the first attempt. Thank you! So what you are saying is that the circuits gates are allowing negative and positive current through their gates from the battery in alternating pattern simulating AC current, therefore becoming AC current since they are coming from two different circular paths of directions.
Nice explanation, Correct me if I'm wrong... INVERTER AIRCON convert the AC to DC then back to AC power source (with the help of IGPT to manipulate the Sine Wave frequency) to run the air con compressor motor at different speed (similar to DC Fan) NON-INVERTER AIRCON powered by AC will run by constant frequency Sine Wave power source. Its' compressor motor will run on full speed thus consume more electricity?
I like this channel!!!! Thank you kind sir for helping the half experienced wire guy!!! I don't engineer stuff but I do hook allot of electronics up. So here is a question for you how do galvanic isolators work and why are they needed
Very interesting. I spec out those VFDs at my work often, but had no idea they temporarily rectified the AC current to DC so that they could manipulate that with an inverter. Cool.
I love your videos and how you explain things! Thank you for this series! Could you make a video that explains how basic household appliances work? Things like a microwave, refrigerator, coffee machine, electric fan, or HVAC? I know it's basically converting electric energy into the specific kind of energy an appliance uses to do its job, but how does that conversion happen? You explained light bulbs (lamps) as an example, and that's just electric current running through a wire of a specific material that produces light energy at a certain temperature. EDIT: Just finished the video. That's amazinggggggggg why don't we learn about this stuff in school???
This is how pure sinewave inverters work. They are never really pure, just a reasonable approximation. The modern mains supply is never really pure either.
Actually PWM for ac motors works in a slightly different way.Since lowering the power won't affect the speed of the motor but just the torque PWM works on the frequency it does something like sending a full positive wave skipping the next negative,the next positive and then sending the next negative....it kinda allows one half of the wave form stops the next 2 allows the 3rd and so on....this way the frequency is basically reduced to 1/3 from 50hz to something like 18 hz slowing down the motor
If I've understood correctly, I think the animation should show the top of the first half bridge and the bottom of the last half bridge switching when the waveform polarity is negative?
Good explanation and great presentation.. Please give me a clear explanation on example a 5V bridge rectifier. Also about a transformer less power supply.
Electricity 1-7 by Harry Mileaf is a good choice for understanding the basics of electricity. It's old and a bit pricey but I have heard a lot of good things about it.
Just want to share to you all for better understanding about why AC is used for mains power output instead of DC. AC is used for home power outlet since it is efficient for a long distance transport. Since the current is alternating, it can reduce the hazard of the wire from burning because of very high current passing through the wire. Also, it is easy to increase or decrease voltage by using transformer, which is not operable with DC, unless you make it pulsating, but that's not efficient anyway. But, the thing is, AC can pass through the body because our body can act like a capacitor. AC can pass through capacitor even at lower voltage but DC requires much larger voltage to pass through the capacitor. This means, you will get electric shock much easier with AC but not DC. So, AC has much more pros in term of cost and efficiency while DC has pros in term of safety. Aside of safety problem, converting AC to DC for electronic device usage is challenging. The simple one is by using diodes to rectify the AC so that it will flow only in one direction. But the voltage you get is not smooth. It has bumping voltage, which you can see with oscilloscope. Adding the capacitor does the job but the voltage will easily change according to the load. Lots of components required to make sure the DC output is stable, regulated and safe from any hazards like AC leakage and voltage spike. Even more components required for features like PFC, OVP, OPP, OCP, OTP, and more.
⚠️ *Found this video super useful?* Buy Paul a coffee to say thanks: ☕
PayPal: www.paypal.me/TheEngineerinMindset
Plz tell how IGBT and MOSFET works plz
See my new MOSFET explained video here➡️: th-cam.com/video/AwRJsze_9m4/w-d-xo.html
All i have to say is just WOW! I've never met such a thorough and still easy to understand explanation! This is thanks to al the graphs, pictures and analogical examples! Love your work, man!
I wish all schools could be teaching like you we would be having an advanced civilization visiting mars like in a backyard
I feel reborn after finding this channel. It's a shame it took me so long. Hands down best channel on the subject.
reborn is a perfect word for it
This is by far the best explanation ive seen of this for beginners thank you for this info.
I've worked for Danfoss Dives NAM for 15 years and just took on an electronic tech position. Imagine my surprise when this video was sponsored but my company. ❤️ I appreciate your videos very much.
Great to hear. We actually have a newer version of this video, better graphics and explanation, check it out
I am doing this at university and this video has helped me understand hours of my lectures. Thank you!
Watching different video's on this topic because sometimes different methods of explaining can help embed learning but I find this series very comprehensive. Well done & Thanks TEM!
Nice video
A couple of minor things.
It's important that one set of switches open before the others close. If closed before open (as narrated) then a short circuit will result and the IGBTs will disintentegrate. It's called shoot-through.
In the 3 phase animation, the active Mosfets should swap to the other pair for the negative half cycle. :-)
See my new MOSFET explained video here➡️: th-cam.com/video/AwRJsze_9m4/w-d-xo.html
Amazing. I install these heat pumps and have been to several of the manufacturers training seminars. I still never understood what was going on, why they where called inverters or what pwm was used for. This makes sense to me now.
really really good demontration and simple explanations for what not explained in schools like that!
Very interesting way of explanation, and super concentrated information with supportive real time animations! Really highly appreciated! Thank you very much 👍👍👍👏👏👏
When people create content that shoot for this >>>>>>> Thank you from the bottom of my Heart .. You did a very good Job!!
The best channel to learn electrical engineering........ I am not an engineering student... but your way of teaching is so easy and knowledgeable that even a non engineering student can also understand it ..
An Important point that I would like to mention is that the identifying attribute of a DC is that it flows in one direction but, it is not always at it's peak. For learning purposes, ommiting the fact that DC can fluctuate at specific frequencies and transmit data signals is convenient as to not confuse new learners. Although, to say that DC is always at it's maximum is simply not correct as a definition.
Great content btw! Glad you are able to make such excellent educational videos.
Great video. Thanks. One minor correction: 60 Hz electricity has 120 polarity reversals per second, not 60.
dis traktor always that one guy.congrats you're cool
@@BuffaloWings713 yep!but somehow that one guy often crystallises the knowledge for others 😉
My dad was an engineer and I've been really curious about how our solar panels work and he mentioned an inverter converting the voltage from the panels which I think was about 12 and comes out 220 to make our television work. He couldn't explain how inverters exactly does it so I've been searching for it. Since I dont study engineering (im still at highschool) I cant fully understand this but it gives me the idea how it really works maybe I should start learning the very basics before this
Seen our new video on HOW SOLAR PANELS WORK in detail th-cam.com/video/Yxt72aDjFgY/w-d-xo.html
This is the answer i needed which even google cant give me thank you.
Good to see you have the electrons flowing in the correct direction. People please keep in mind that if the diagram simulator was showing conventional current, the diagram simulator (not reality) would be flowing in the opposite direction. In reality electrons flow out of the negative source when power is being used. This is important because the direction of electrons over a resistive load determines the positive and negative voltage potential differences induced on the terminals of the resistive load.
Non-engineer here.., I feel like I am understanding it to a point. If you are using the PWM to vary the speeds of an AC motor, wouldn't this put a lot of stress on an AC motor that was designed for 50 or 60 HZ? Or do these need to be more robust AC motors designed to take the stress or variable frequencies?
Awesome informative video! Thanks!
Super informative, well presented and easy to understand. Thanks!
Quite literally one of the best channels on TH-cam.
Awesome! Thank you for spreading knowledge to guys like us who are in other streams of engineering and desperately wants to know how these electronic equipment works! Thank you!
What stream of engineering are you in?
Mechanical Engineering....
I rarely comment on people's video but I wanted to say your video are great and very informative.
Very great videos! Only thing that may help non-engineers (by trade) is the pacing of the video can be fast between topics and main points for this processing the information. Really love the presentation and explanations. Thanks!
Now this video explains it very good. Not too technical. A example for non engineer person.
It is a Shame that Most USA public school systems do NOT actually Cover this at all .... Time to change the whole superstructure
Just brilliant! I always wondered about how the sinusoidal curve was obtained
Just subscribe , first timer.. i am joining in because i love this field..
Thanks for your support to understanding power electronics..
Thanks for making my life more beautiful and meanfull!
God bless you
Wow, I understood that on the first attempt. Thank you! So what you are saying is that the circuits gates are allowing negative and positive current through their gates from the battery in alternating pattern simulating AC current, therefore becoming AC current since they are coming from two different circular paths of directions.
Get your Engineering T-shirts, Hoodies and Xmas cards here! tinyurl.com/ydcfcr9n
Your lectures are far better than university lectures 😂.Keep uploading sir
Excellent. I kind of understood the technology but now I understand much better. Thanks.
brilliant explanation
Thank you for the video ❤.
Truky appreciated
Thanks sir for this kind information. Once again Thank u
thank you for your hard work ,you always save us
You are actually amazing at explaining this stuff. Keep up the good work!
Great video! Thank you!
⚠️Learn *POWER FACTOR KVAR* here: th-cam.com/video/Tv_7XWf96gg/w-d-xo.html ⚠️
It's a magical box that makes the pixies dance back and forth
MWB Gaming nice profile photo 👍
@@cheguevara5121 cheers mate, glad I'm not the only one who knows the truth
Very informative! but just wanna say that the standard frequency in the Philippines is 60hz, not 50hz
Thank You! I understood. But! Where is the neutral?
Wow!!! Just wish that this existed when I was in school.
Check out our new version of VFD or power inverter explained, even better
Learning a lot from your videos, Paul !
FULL BRIDGE RECTIFIER !!!!!!!
Electroboom?
Electroboom is that you?
I love cranking a Rectifier in full bridge mode. Its delicious.
Mehdi fans
Rectifier video here th-cam.com/video/RiRyzLl4Y8U/w-d-xo.html
Nice explanation, Correct me if I'm wrong...
INVERTER AIRCON convert the AC to DC then back to AC power source (with the help of IGPT to manipulate the Sine Wave frequency) to run the air con compressor motor at different speed (similar to DC Fan)
NON-INVERTER AIRCON powered by AC will run by constant frequency Sine Wave power source. Its' compressor motor will run on full speed thus consume more electricity?
Excellent work worth a coffee.
Thanks for your support, Paul. Much appreciated ☕
I like this channel!!!! Thank you kind sir for helping the half experienced wire guy!!! I don't engineer stuff but I do hook allot of electronics up.
So here is a question for you how do galvanic isolators work and why are they needed
Very well presented, awesome video my dude please make more videos on electrical engineering
Very interesting. I spec out those VFDs at my work often, but had no idea they temporarily rectified the AC current to DC so that they could manipulate that with an inverter. Cool.
Power inverter video here th-cam.com/video/iIqhAX0I7lI/w-d-xo.html
very good thank you
Good explanation
Deam right matrial video!
Please upload the videos with subtitle, it will help us to understand. Tnx.
You can turn subtitles on from your device, they are available on every video
Great job
Wow this is genius.
I love your videos and how you explain things! Thank you for this series!
Could you make a video that explains how basic household appliances work? Things like a microwave, refrigerator, coffee machine, electric fan, or HVAC? I know it's basically converting electric energy into the specific kind of energy an appliance uses to do its job, but how does that conversion happen?
You explained light bulbs (lamps) as an example, and that's just electric current running through a wire of a specific material that produces light energy at a certain temperature.
EDIT: Just finished the video. That's amazinggggggggg why don't we learn about this stuff in school???
This channel is solid gold! 💪🏽👍🏼👍🏼
Thank u make more video s about electrical
From
India
Thank you, did you check out our new Hindi channel? th-cam.com/channels/g4k338hz9U8jnD5SXPO5jQ.html
Very clear
thank you!
please make a video on dual inverters, I don't understand how they work and what's their benefit
Thanks for this.just brilliant.
Very nice explanation. Easy to understand with animations. Thanks a lot for making a video on this topic.
Ohoo exceptionally taught marvelous Sir
Now i become fan of your 🔥❤💯
Great video, I would love to see you explain how pure sine waves are generated by an inverter.
This is how pure sinewave inverters work. They are never really pure, just a reasonable approximation. The modern mains supply is never really pure either.
@@andrewwhite1793 exactly ,perfection in sub systems is rarely found; one wonders if there are defective atoms or photons for that matter.
Power inverter video here th-cam.com/video/iIqhAX0I7lI/w-d-xo.html
Informative, significant topic and Useful, however I don't think he explains what the abbreviation IGBT stands for?
Insulated Gate Bipolar Transistor, Part Mosfet, allowing a low power driver circuit, part bipolar transistor, giving low ON resistance :-)
Transistor video now live: th-cam.com/video/J4oO7PT_nzQ/w-d-xo.html
See my new MOSFET explained video here➡️: th-cam.com/video/AwRJsze_9m4/w-d-xo.html
Oscilloscopes are definitely usefull. Used them for auto tech.
Actually PWM for ac motors works in a slightly different way.Since lowering the power won't affect the speed of the motor but just the torque PWM works on the frequency it does something like sending a full positive wave skipping the next negative,the next positive and then sending the next negative....it kinda allows one half of the wave form stops the next 2 allows the 3rd and so on....this way the frequency is basically reduced to 1/3 from 50hz to something like 18 hz slowing down the motor
Nice information.
We r with u you go more indepth like this
How do you do that, so impressive brother.very informative and out of the box.
Really nicely done, many thanks
Nice explaination .the basic is changging magnetic flux as we know when current pass to inductor generating magnetic flux
Here you go th-cam.com/video/KSylo01n5FY/w-d-xo.html
Thanks for your dedications to make this sir, I highly Appreciated it thats why I subscribed
excellent video, great how you explain the terms. Many Thanks
Very Nice, Very Nice
Please make video on solar and various power generation in detail
Seen our new video on HOW SOLAR PANELS WORK in detail th-cam.com/video/Yxt72aDjFgY/w-d-xo.html
What does IBJT stand for? I’ve only ever learned BJT
If I've understood correctly, I think the animation should show the top of the first half bridge and the bottom of the last half bridge switching when the waveform polarity is negative?
Good
Great video you put together and posted to TH-cam. Great graphics.
Good explanation and great presentation..
Please give me a clear explanation on example a 5V bridge rectifier. Also about a transformer less power supply.
Rectifier video here th-cam.com/video/RiRyzLl4Y8U/w-d-xo.html
You omitted a rather fundamental fact when explaining DC, namely that it alays flows from positive to negative.
No it doesn't, electrons flow from negative to positive you were just taught conventional current at school which is disproved
@@EngineeringMindset Does it matter?
@@Beevreeter Yes, it does. Namely to not get confused by interjections like yours after learning about electron flow.
@@Anvilshock Sorry if you're confused
Man, this was awesome man...very well done. This whole series is fascinating.
Another excellent educational video on TH-cam. Thank You for making it and posting it. R
Excellent explained as well animated video.
What book do you recommend to learn about electricity, grounding, why the outlet has a 0V if the current is alternating?
Electricity 1-7 by Harry Mileaf is a good choice for understanding the basics of electricity. It's old and a bit pricey but I have heard a lot of good things about it.
Wow what a video
For that last part, the pulsing IGBTs would have to switch current direction to get the negative amplitude, yes?
Yes, the other pair of IGBTs would switch on instead.
Awesome video and explaination as well 👌
Glad you liked it. We have a newer version called power inverters explained which it quite a bit better
@@EngineeringMindset ok, I will see that also, good to see your reply,
Awesome 😊
Just want to share to you all for better understanding about why AC is used for mains power output instead of DC. AC is used for home power outlet since it is efficient for a long distance transport. Since the current is alternating, it can reduce the hazard of the wire from burning because of very high current passing through the wire. Also, it is easy to increase or decrease voltage by using transformer, which is not operable with DC, unless you make it pulsating, but that's not efficient anyway. But, the thing is, AC can pass through the body because our body can act like a capacitor. AC can pass through capacitor even at lower voltage but DC requires much larger voltage to pass through the capacitor. This means, you will get electric shock much easier with AC but not DC. So, AC has much more pros in term of cost and efficiency while DC has pros in term of safety. Aside of safety problem, converting AC to DC for electronic device usage is challenging. The simple one is by using diodes to rectify the AC so that it will flow only in one direction. But the voltage you get is not smooth. It has bumping voltage, which you can see with oscilloscope. Adding the capacitor does the job but the voltage will easily change according to the load. Lots of components required to make sure the DC output is stable, regulated and safe from any hazards like AC leakage and voltage spike. Even more components required for features like PFC, OVP, OPP, OCP, OTP, and more.
Great explanation
Great job and also I would like to learn more about automotive Rev Rev limiters could you explain please
What? Just when it was getting interesting! Okay, I give up, you guys win - time for me to "learn electronics"!
Finally a non indian explanation of inverter....
very informative...thank you
can you makr a video on how inverters charge battery while on grid?