Pure Sine Inverter Update - 500W, fuse, bleeding resistors and more

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🔥Update video over the Pure Sine Inverter, homemade of 500W. All your questions about it are solved!
🔀LINKS
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00:00 Intro
01:43 Voltage and frequency
03:33 24V Input?
05:16 Heatsink?
08:36 Feedback
10:03 DIY Price
13:40 15V Regulator
14:39 Bootstrap?
15:50 Shunt resistor read
17:20 Bad rectifier
22:00 Power increase
25:00 Thank You
Like share and subscribe to motivate me. Thank you
#electronics
#learning
#circuits

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26 июн 2024

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Комментарии : 144

@JonathanDeWitt1988 Год назад

Andrei, another excellent video. I'm glad to see you came back and addressed common questions. There were some good comments/questions that were answered. I look forward to seeing the revised design out someday. The video was very educational. Thank you.

@hippie-io7225 Год назад

You have made a very excellent prototype! Learning about high voltages and safely applying them is a VERY important skill!! Your project creates an environment where safety skills can be practiced. I taught radar maintenance in the US Army. The first thing I pointed out to my students was the locations in the electronics cabinet that could kill them! None of my students were ever harmed! Thank you for such a good project. Suggestion: Consider placing a surge component at the output that could act as a "soft start". You might lose some efficiency, but the convenience would be awesome. My 400 W store bought inverter has plenty of power for a laser printer, but the inductive power surge from the printer makes the inverter shut down.

@TheSorters 9 месяцев назад

There is a jumper which enables a 3 second soft start

@emrahinan1 3 месяца назад

I follow your work closely. I benefited greatly from your work.

@golammustafa662 Месяц назад

I appreciate your project. Those who are elementary like me will learn from you. Thank you very very much

@ELECTRONOOBS Год назад

Join my Arduino Course (Spanish): bit.ly/2JY8icE My Tools: bit.ly/3uv8bc3 Help me on Patreon: www.patreon.com/ELECTRONOOBS

@khaleef_hrm Год назад

How was 3 transformers connected in the Inverter @07:23? Can you do a video to explain that please? I already read about 2 or 4 in Series/Parallel but not 3.

@freeelectron8261 4 месяца назад

Great stuff. Looking forward to the updated invert pcb design!

@alfatihid8901 11 месяцев назад

great answer and evaluation, we will waiting for next project

@burakokumus6040 Год назад

Very nice work! Congrats!

@mortyrickerson6322 Год назад

Dude this channel is frickin epic

@ELECTRONOOBS Год назад

Thanks so much!

@gauravs3991 Год назад

I love this channel …

@temidayoakinshola8243 2 месяца назад

Awesome vid bro..

@ranganatennakoon Год назад

very cool project !

@ared7909 Год назад

Excellent Video! Great answers to all the questions of the previous video. Have you thought of using a boost converter instead of the HV HF module?

@stephanc7192 Год назад

Great video

@snipersquad100 Год назад

I ordered my board today.

@goodnightmr5892 Год назад

Hey brother! Just checking it! 👋

@A2an Год назад

Series 😊But we know what you meant, also you confirmed with more IGBT 😊 keep up the good work 👍 Don't take the criticize to personally.

@BenMitro Год назад

An idea for a future project that will be very useful for those of us that have a grid tie inverter with mppt. It would be useful to feed power in to the mppt inputs to mimic a solar panel array after dark. For me, specifically I need a DC to DC boost inverter to convert the 48V battery (15s LiFePO4 bank) to 120 - 385V DC with programmable current and/or voltage output so only the required power is fed in to the grid tie inverter. This proposed inverter can supply 500W assuming the inverters can be paralleled to to achieve higher power from the batteries if needed. In addition a inductive current sense input so I can connect an inductive loop on the neutral leg of the mains input to the house to control the inverter power so that grid power use is minimised.

@sudheerkumar5966 Год назад

Very good sir

@electrotsmishar Месяц назад

Thanks for the video. Learned a lot of benificial knowledge from you. Also, the efficiency will be higher I assume if you consider power factor due to the LED driver circuit

@2202ROBERTO2202 3 месяца назад

COOL!😎 If you make one from 24v to 220v 50Hz 3000w I'll buy it working, if someone else wants to buy you can make several in series and earn a few dollars. It is the best I have seen on RU-vid, I have been watching videos for weeks looking for something reliable. It is as you say, the Chinese equipment promotes 2200w but the letters clarify that the nominal is 600w

@PsalmFourteenOne Год назад

Awesome. *I'd like to see a BLDC board made to run higher voltage motors (240V) using back EMF* 👍

@tonygiguere2495 Год назад

Great project :)

@rkelectronicskarachi 11 месяцев назад

amazing.

@REZOLUTIONER Год назад

You can't use thet transformers in series, because output voltage will be 760V. They mast to be modified for serial connection.

@ELECTRONOOBS Год назад

Yes, I meant in parallel. My bad!

@jamesfrancis8765 11 месяцев назад

You make amazing videos. Clear, accurate for components, very informative. Little verbal mistakes like the parallel/series mistakes could cause viewers to move on. Listening to your videos for five minutes should make it clear that it was a mixup from talking fast. Don't stop doing this! The world needs more if you. Good to know someone else was paying attention. Might be worth an audio edit. I caught similar mistakes in another video also, you keep saying 150v even though im sure you meant 120v.

@ogbonnayakingsley4829 10 месяцев назад

Hello

@ogbonnayakingsley4829 10 месяцев назад

@@ELECTRONOOBS I need ur contact

@Mexzot 5 месяцев назад

Re: the solder on the tracks, Current is based on surface area, not cross section, so I could be wrong, but don’t think this increases the current capacity, but reduces the fuse speed of the track, by giving it more thermal mass. So only allows for more current bursts vs overall current. But I haven’t had coffee yet this morning, so could be having a mental moment ha ha. Love the project BTW…makes me think about adding voltage sensitive relays on the input for battery protection, maybe even some more switching points to enable a control system to be built around it. Or external frequency synchronisation to run multiple in parallel with redundancy for high loads Hmmm mains sync and either full online and or switching for a high end UPS capability…thanks so much for all this food tor thought!

@mrj2848 3 месяца назад

You wrote crap.

@Mexzot 3 месяца назад

@@mrj2848 ha ha…care to elaborate your comprehensive feedback seems to be missing some detail 🤔. I guess I was a bit vauge, but I was refencing the skin effect: en.m.wikipedia.org/wiki/Skin_effect#:~:text=The%20electric%20current%20flows%20mainly,resulting%20in%20less%20skin%20depth.

@adelekezakariyau2085 3 месяца назад

This is excellent video, please make a video on how to put dc-dc converter in series. And pls make Bill of components in excel form with part number

@yasirshahzad3732 3 месяца назад

Great Video. Can you provide some reference links on how to connect three transformers in series?

@hectorbarrera9496 Год назад

Hi! nice video, could you share the calculations steps for the smps step up transformer?

@EriccoInertialsystem Год назад

Great, but I was wondering if you know anything about accelerometers and inertial navigation devices besides these？

@ThomasAndersonbsf Год назад

I have been following for everything outside that module, as there are plenty of info bits on a code pack for arduino that we can control its rate and speed with PWM'd for pure sine wave output, and I really want to have split phase (110+110=220vAC) triple phase, and a way to make step up high voltage for distance sending it, and step down after arrival back down to usable range, all from off grid energy production :) (get out of the city and get some chickens, learn how to do things and hoard skills and info :)

@jstro-hobbytech Год назад

Great achievement brother. These things are all about iteration and you can't bodge a wire and call it a day for something like that

@donaldhoudek2889 10 месяцев назад

Good video! I purchased that 500w Inverter Boost Board Transformer Power DC 12VDC to AC18, 220, 380, but only needed the 18VAC output for my project. Well that was a big mistake! I received the unit and wired it to my 12VDC/265Ah batteries and there was nothing. Verified the 12VDC on the input on the board, but there was absolutely "0" volts on any of the outputs. I had it sitting on my workbench for a few months before testing it, so it was to late to return it. Afterwords I noticed that there were a number of reviews with the same issue that I was encountering. I still want to trouble shoot the board to see if I can isolate what the issue is. How hard would it be to come up with a 12VDC to 25VAC/3 amp inverter. I could probably purchase the base for the windings and wind my own, but I would have to try and figure out the primary and secondary winding ratio and the AWG of the wire to use. Bummer!

@korneo7636 Год назад

Would it be possible to make the input supply range to max 20V DC? I would like to add a drill battery to supply it

@MrDomingo55 6 месяцев назад

I would take issue with statement that to increase overall power one needs to use additional input transformers and associated circuitry in SERIES. Perhaps physical arrangement may look like that they are in series but electrically, the outputs are wired in PARALLEL to provide much higher current overall for the next stage.

@vengug7303 Год назад

Hi Sir Thanks for sharing ....how to select the output inductor please

@noone-bw8cf 11 месяцев назад

Hello Electronoob, I need help. I followed everything that you have taught in the previous part, got the schematics rights followed by a pcb design; however my inverter didnt turn on. Instead my mosfets got blowed up. I don`t know why my mosfets got shorted, how do I figure this out?

@mesutgul7668 Год назад

Would it be a problem if there is no feedback in the SG3525 circuit?

@daniel0191bg Год назад

Good clarifications, but take into account that a the dremel won't be consuming 180W in free running, the best would be to actually measure the power

@XXXXIndices Год назад

I have built many inverters using the EG8010 chip that is available separately. The frequency does not have any feedback but it will not change regardless of the load. It remains constant as the crystal connected to the EG8010 is what controls the frequency.

@jodyvett23 10 месяцев назад

How durable are they. Plz would really like to know

@XXXXIndices 10 месяцев назад

@@jodyvett23 Been running my house 24/7/365 for over 7 years now, so they are durable. It pays to have genuine IR2110 MOSFET driver ICs, they do the heavy lifting and the EG8010 just provides the signal.

@ShubhamPrakash-my7cg 9 месяцев назад

@@XXXXIndicesHi Sir can you please me how I can contact you . I need your guidance to make my own inverter. I can pay you for help .

@PeacefulWorld 8 месяцев назад

Sir i want ro contact with you please

@lezbriddon 7 месяцев назад

at just after 22:24 you say to increase the power you will need more transformers, you say to connect them in series, I think you mean in parallel? if you add them in series wont you be then making 400v or 600v for the switching stage?

@fredhand6019 3 месяца назад

If you can do it on your new design for your bored try and separate the capacitors away from your heat sinks and anything generating heat they will live longer you'll have less problems with your capacitors

@yaghiyahbrenner8902 Год назад

I would recommend using a Microchip dsPIC33 or TMS320 evaluation board and build your own control circuit. The EG8010 is okay but has some serious limitations.

@ShubhamPrakash-my7cg 9 месяцев назад

What are it's limitations can you please tell?

@c.schandra2134 Год назад

For booster should what are problem associated with full bridge driver instead of push pull

@Zikeyboy101 Месяц назад

I noticed there are different types of egs002 board. Can you please test your inverter with the board 20150901 instead of 20210501 that you have, and let's see if it works? Cos mine didn't work, I get 3 led blinks (over voltage)

@pantherat2323 2 месяца назад

How did you manage the heat generated by the transformer

@golammustafa662 Месяц назад

Sir, another video will make about 3 to 4 kw solar inverters which are now being more popular and pretty expensive.

@wilsonafuevu9036 10 месяцев назад

Thank you very much, I was wondering your feedback for the SG3525 circuit, i noticed that the pin 2 was pulled to ground through a 10k resistor only, how does the circuit regulte the voltage to 380v directly

@aksal60 Месяц назад

No regulation here. Not necessary and would reduce efficiency if you did. Only on secondary hi voltage side handled by the egs002. But most inverters do have a voltage monitor though and would shut itself down if outside specification. Either hi or low. Sometimes done by simple comparator or even even sometimes a micro controller.

@DoK_ToP Год назад

It would be nice to show how you can increase the power.

@user-ms7lx5ew7k Год назад

The fuse is good. but I think it's worth adding an electronic fuse. yes, this will increase the size of the board and the cost of the product, since this requires a separate shunt, an operational amplifier, a mosfet transistor and an rs trigger and accompanying strapping. all this will protect the inverter together with the dc/dc converter. and most importantly faster than a conventional fuse, which in turn works as the last line of protection. perhaps some of what is written is not entirely clear, but the main one is clear. I don't speak English, so I used a translator for this text.

@freda5344 7 месяцев назад

what is the point of putting yet another electronic switch on the input, and you will need more than one too, and so losses, when you already have correctly sized (i hope) switches as part of the dc/dc converter, you just need a fast response to overload to switch those off. Last line of defence should be a hefty real fuse, just in case that doesn;t work or fail.

@bdtp 5 месяцев назад

First i am sorry for my bad english...! Some important questions for me, please answer me. Why we need isolated 12v for egs002 boad and why you connect a feedback in form output to egs002 board. Because you already connect a feedback from 450v capacitor to 3525 ic circuit.

@AkashBagFEce Год назад

please make a video on just newly lonched arduino uno r4... waiting for it

@RogerTannous Год назад

On the board design thingie: there are capacitors behind the IGBTs, how are you planning to put the heatsink!

@lucacappelletti6256 7 месяцев назад

can you add a grid tie feature?

@a.stepnick6755 9 месяцев назад

The inverter project is great but please make a another video on how to make a modified sinewave inverter using the sg3525 or tl494ic

@andremantovani 5 месяцев назад

great!! is there a way to make the output selectable beteeen 110 or 220?

@ThinkingFurry 5 месяцев назад

I guess put a variac at the output

@petch41 Год назад

Just an idea but what about making them stackable. So if you need 1KW just use two with a clock link like the Honda gensets.

@josederibamarduarte9292 3 месяца назад

Hi friend, have you this exemplo in 60hz?

@raphaelgilles6721 Год назад

Nice Project! I built your project and the inverter creates 220V but the transformer of the high voltage generator makes loud switching noise. Also i´ve noticed that the original board of the high voltage inverter has two different resistor values. For R24 you are using 10R. This Resistor has a value of 100R on the original Board from aliexpress. Also the Value of R23 differs from your design. You are using 33K and the value of my board was 3k3. Do you have any idea why my HV converter makes so much switching noises? Thanks in advance!

@PeacefulWorld 8 месяцев назад

Developer forgotten to add Dot after 3. I mean it should 3.3k. As he forgotten to add dot, thats why mentioned 33k. But see in the video Resistor Color. Its 3.3k. Not 33k. If you add 33k then obviously it will make Noise because this kinds of Transformer need minimum 15KHZ and when you use 33k resistor then PWM will make 2KHZ. Hope you can understand.

@SaranaAlat 9 месяцев назад

What your software desing ?

@DoK_ToP Год назад

Good afternoon what value in MH should be 1 x 2000W Inductor this item

@arvinbaba 8 месяцев назад

What is the material of LC output core ?

@nataneilwilson7231 9 месяцев назад

If the power of an inverter is 4000w and the input voltage is 48vdc what will be the shunt resistance?

@shadmehraria5473 10 месяцев назад

What type is the output inductor?

@braydengambell4386 Год назад

You should make/sell build it yourself kits 120v/240v that comes with the PCB, instructions and the components to build it. I would definitely buy it

@braydengambell4386 Год назад

Also love this channel

@ELECTRONOOBS Год назад

Till I don't make sure it works perfectly, I don't plan on selling anything :)))) Thanks!

@ZaheerAhmed-iw1ur 3 месяца назад

Who is waitng for next update

@enoquebarbosa8801 11 месяцев назад

Fazer um ponte h senoidal 2000w separado conversor dc para dc

@nasrullahchughtai6408 19 дней назад

Make a video on off grid inverter. I mean only solder plates use....

@baraboyss9108 6 месяцев назад

pada video sebelumnya, berapakah daya yg dihasilkan oleh inverter ?, dan apabila ingin meningkatkan dayanya apa saja yg harus saya ubah ?, mohon dibalas in the previous video, how much power does the inverter produce?, and if I want to increase the power, what should I change?, please reply

@cipry1010 Год назад

A good improvement would be to use an isolated dc-dc converter to isolate primary and secondary grounds because it may shock you if you touch the battery leads. Get the feedback from hv dc with resistors,optocoupler and tl431. I can give a schematic as reference which I build and works and have better efficiency. And go for 24 or maybe 36,48v for more power.

@freda5344 7 месяцев назад

yes the hbridge igbt driver should be isolated, either with driver transformers or hi speed optoisolators

@MrYevelnad Год назад

It would be good if we can make pure sinewave UPS out of this.

@markhonea2461 10 месяцев назад

Putting the heat sink in that configuration ensures that the farthest MOSFET from the fan will be the first to show thermal damage.

@republicoftutorials6068 Год назад

What about short circuit ?

@nasrullahchughtai6408 19 дней назад

with out battery.. Thanks..

@saruthapa2732 Год назад

Anyone know, can EGS002 driver board produce 100khz ?

@khaleef_hrm Год назад

How was 3 transformers connected in the Inverter @07:26? Can you do a video to explain that please? I already read about 2 or 4 in Series/Parallel but not 3.

@ELECTRONOOBS Год назад

I don't have a schematic of that commercial inverter, sorry...

@khaleef_hrm Год назад

@@ELECTRONOOBS Okay thanks.

@yoppindia Год назад

Battery charger and changeover circuit from ac to inverter.

@jameshancock Год назад

Is there a way to make it do split phase?

@jameshancock Год назад

@@TCreationsk One would assume that on the inductor at the output you could just center tap it and get 120 + 120V like North American Power. It would be interesting to see someone doing so.

@rjsc Год назад

Why did you choose to use IGBTs instead of MOSFETs? IGBTs have a fixed voltage drop between collector and emitter, MOSFETs present a fraction of an ohm resistance between source and drain.

@TheSorters 9 месяцев назад

I understand some IGBTs can handle much more current, like 100s of amps if needed

@josederibamarduarte9292 2 месяца назад

Hello, is possible to share the schematic, pls?

@josepeixoto3715 6 месяцев назад

omg... u said "the dremel is 150 watts" but i thought that the dremel watts DEPENDS on the load YOU put on it,or not?

@user-gt6fp3ex5i 6 месяцев назад

inverter 300vdc -400vdc dc to 230v ac converter .. then we can add more transformers and make more power full one...plz plz

@khurashidahmad8220 9 месяцев назад

Please 2kva pure shine wave solar inverter circuite diagram

@debojyotibhattacharjee483 Год назад

22:23 it should be in parallel..

@ELECTRONOOBS Год назад

True, sorry for that!

@vinodvinees1629 9 месяцев назад

Why don't u add in this pcb charging circuit

@khaleef_hrm Год назад

Great design! But it could be smaller making use of SMD parts.

@sammin5764 10 месяцев назад

🌷🌟🌷🌟🌷🌟🌷🌟🌷🌟

@cisarvialpando7412 4 месяца назад

Link of the gerber files so we can make this at home

@gregorybolin4672 5 месяцев назад

Its still 60 percent isnt it ?

@user-gt6fp3ex5i 6 месяцев назад

@learm67 Год назад

Why I get shocked from my soldring iron

@user-gt6fp3ex5i 6 месяцев назад

inverter 300vdc -400vdc dc to 230v ac converter .. then we can add more transformers and make more power full one...plz plz inverter 300vdc -400vdc dc to 230v ac converter .. then we can add more transformers and make more power full one...plz plz inverter 300vdc -400vdc dc to 230v ac converter .. then we can add more transformers and make more power full one...plz plz inverter 300vdc -400vdc dc to 230v ac converter .. then we can add more transformers and make more power full one...plz plz inverter 300vdc -400vdc dc to 230v ac converter .. then we can add more transformers and make more power full one...plz plz

@MitsuZer0G Год назад

First

@Christech7516 Год назад

Your shunt is into high voltage.. not in low voltage. (500w ÷ 230v = 2.17a) you need .230m Ohms shunt resistor . Im not electrical engineer but i love electronics.

@bashaaksema94 Год назад

No its not its on the 12V input

@shahadat.shaharia.joy. Год назад

piz pcb link and pcb file

@user-sd9cm6zn5o 8 месяцев назад

В Китае есть платы инвертора чистый синус. Только без dc-ac преобразователя.

@simulhossainsanvi2155 2 месяца назад

Give me the garber file

@Europeanslave 9 месяцев назад

heat sink ? just put it in water

@quickquote1568 3 месяца назад

Come on dude, nobody buys high frequency, transformerless inverters anymore. They offer far shorter life expectancies and a far poorer peak power capacity when compared to low frequency, transformer based inverters.

@amrmohamed3842 2 месяца назад

Its true

@PeacefulWorld 8 месяцев назад

DC part is not 400KHZ. Its 20KHZ. Also you skipped about Inductor which is most important thing. Without Perfect Inductor no one can success in this Project. I don't know why you skipped it. You have a lot of mechines also for test, then how you tell such a wrong thing like this! In your website you also not mentioned about inductance value.