inside 12/230V 1000W DC/AC inverter (unedited)

[@michaelfisher9671]

Don’t worry about the length. I’m still enjoying your videos at 30min. If I had a short attention span I wouldn’t be here in the first place!

[@Conservator.]

I was disappointed that the video would end but fortunately it lasted another 15 minutes! 😁

[@Conservator.]

2:38 “ at a certain age you completely loose the track of time” So true 😉 Tx! Very informational and interesting video of a neat inverter.

[@DIYwithBatteries]

Yeah that's true Dude! Our brain might be gets heated i think we can use Heatsink. LOL 😄

[@glmnet]

Agree, in two or three years from now this guy will be a fireman

[@Michal5000]

I am 25 and I lost the track of time. I think this is not OK

[@coloradowilderness3139]

Diode , You are actually best in Power Electronics. Ever i have seen the most of your Tutorials.

[@KuntalGhosh]

i like before watching the video cus old subs know every video is going to be good and well explained ! ❤

[@ಶುಗರ್ಡ್ಯಾಡಿ]

Ohh bhai 🖐🏻

[@moeinsp2027]

👍

[@isoguy.]

Really enjoy these long un-edited videos Made for the thinking people Thanks for sharing.

[@chongshenchang9367]

I've been watching your videos for almost 7 to 8 hrs. Worth watching. I really like this inverter.

[@LucasPereiradaSilva]

1:34 diodegonewild gone full slav, he just recognised Taiwan as an independent nation, so Xi Jinping will cease all diplomatic relations with Czech Republic 😂

[@lakiza55]

Welp, next time my appliance combusts, i'll pour some Czech beer on it, since you didn't put a warning that it's obviously sarcasm 😆

[@drobotk]

Well it's unedited ;)

[@romanlubij52]

Just make sure it's really Czech. Beer from other countries may produce undocumented/unexpected results :D

[@lakiza55]

@@romanlubij52 Sure, but do they all work as well? I'd rather pour Krušovice or Plzeň elsewhere 😉

[@romanlubij52]

@@lakiza55 Maybe? Let's find out!

[@alphonsesynrem28]

I am always looking forward for even a more longer video and all your lengthy talks. So accurate and sincerely true to the subject that you always talks of. So many black Magic of electronics you just talks like cooking food in the kitchen. I really appreciate your experience and truth. Thank you diode gone wild.

[@coloradowilderness3139]

This a Practical and useful device . So I speed time on this but SSTC ! Only to learn some basics. Thanks Diode.

[@DhanjitMr]

Good too see u again Professor (tallking) with new ideas..

[@omarek555]

At the higher power the efficiency is about 92 %, thats much better than i would have expected. It would be really interesting to see how the efficiency changes with different loads, if you ever manage to find a suitable 12 V supply. Thanks for the video!

[@ayyadew]

We need a full load test and schematic

[@TerryLawrence001]

Your videos are worth every minute!

[@gillywild]

It would be great if you could do a basic schematic of the power stages. Just the discussion would be educational as you are very talented at explaining these things in an understandable but not over simplified way. As always, thank you hugely for taking the time to make these videos. Your teaching is greatly appreciated.

[@FerrybigGaming]

The quality of this video is good enough

[@gamex7673]

Please you can make a video for schematic of this inverter ?

[@electronic7979]

Excellent video 👍

[@cisarvialpando7412]

I really liked your power supply.....0 - 30V and 0 _ 60 A It outputs nice amount of currrent.... And the sound of fan of the power supply is loud too.... I think that you made that power supply yourself...💯

[@rtos]

Nice analysis of the internals of this quasi-sine inverter. This design appears solid, with the five paralleled DC-DC. Modern designs may skimp on such details...but this one may last much longer in actual use. You've not mentioned the efficiency, but a rough calculation base on measurements indicates fairly decent.

[@5478Ashley]

0:12 The first video of fire extinguisher made with cans, not a glass bottle.

[@TechGorilla1987]

My favorite kind of video in ALL of KZbin! We hope you're well over here in Pennsylvania U.S.A!! And pet yourrrrrrrr cat of courrrrrrse.

[@Conservator.]

11:14 About the lineair regulator: it will have to dissipate quite a lot of energy to regulate the voltage doen from 18V to 14.4V. At say 200W that would be 40Watt. Or did I make a mistake here?

[@3lm1c4a]

Your calculation is correct.

[@Conservator.]

3lm1c4a Thanks.

[@DiodeGoneWild]

Yes, the charger probably dissipates several tens of Watts. But having a giant heatsink already in it for the inverter, it's easier than designing a buck regulator.

[@Conservator.]

Joachim Shekelberg Good point, but that would also limit the charging capacity and thus not using the full potential of the (expensive) transformer and therefore not the smartest solution I think.

[@Conservator.]

Joachim Shekelberg 👍

[@EliteHEAD]

This seems to be a different topology than all the other boards that you drew schematics before, can you try to make schematics and explain them at lest for the key blocks?

[@jonhvasku]

When Diode does not put the fire extinguisher warning and you can finally try it yourself. Update: Does not work well in Triple Phase 400V systems, will try on a 230V single Phase

[@bashaaksema94]

?

[@BadMax02_VR]

looking forward to hearing if it worked on a single phase 230v system.

[@saschakolb7102]

I have such a 20(?) Years old modified sinus 12 DC 220V AC converter in my mobile home to power an air conditioner with a 700 W compressor. It runs with my 2x 138Ah Valence LiFeMgO-Batteries with 12.6V. It works well but of course I prefer connecting it directly to 230V mains Voltage if possible. But for an hour or so it is good with batteries to cool 7,30 meters Iveco Mobilvetta mobile home down and significantly lower humidity before going to bed if mains Voltage is not available. Well done video 👍

[@roentgen226]

Your cat is so nice, God bless em

[@Buzzhumma]

Great style of teaching! 🙏

[@picanazo420]

Can You upload a vídeo teaching how to build your big power supply? I know that it's in your website but in vídeo would be fantastic ;3

[@impmeister1]

What is the brand/name of that little oscilloscope?

[@1pcfred]

Here's a video about it kzbin.info/www/bejne/nXSsYYZpd8iinMU

[@p_o_]

Mmm what a nice fan sound 😊😊😊

[@threeMetreJim]

I've got a scrap inverter like this. It had some water damaged components, and a broken trim-pot from someone trying to 'fix' it. As I didn't have any set up instructions, I thought it best to scrap rather than maybe start a fire by guessing! It has some useful parts though. It looks like the high frequency transformers might have a push - pull secondary. It looks like yours has 5 double diodes for the rectification (one double diode per transformer). The one I have has got 8 dual diodes to form a bridge with all transformers connected in parallel. The low voltage MOSFETs are IRFZ44 in the one I have, and as it's a 2kW version, there are a lot of them (It's an old unit, so there are 4 MOSFETs per transformer - 2 for each leg and there are 8 transformers in total; some of the MOSFETs have already been re-used to repair lower power inverters - even with the protection, people still manage to destroy inverters quite regularly. Edited due to finding the actual board, and taking a look again. I got a few details wrong from memory.

[@OldSkoolF]

Please do lots more of these!!!

[@Dc_tech386]

Have you try testing the gate voltage of the full bridge high side because I don’t understand how the gate can handle 230 volt

[@DubDado]

hi man! thanks so much for videos .... I ask: why the sound of some videos are so bad? maybe problems? but with what? distortion?

[@BeezyKing99]

Dub Dado it usually has to do with rendering the video when it uploads... KZbin’s fault.

[@mikewalsh511]

I want this guy to order my food for me at a drive-through.

[@BurnerStudio]

lol

[@wurgervomlichtenmoor5073]

Thank you for this. Much better as the inverters seen on You Tube based on simple Push Pull circuits with small 50Hz transformers that delivers several mega watts xD

[@djsirius27]

Nice „Reverse Polarity Protection“ as printed as feature on the top.... typing on „do not reverse input“ is a proper way for protecting against reverse polarity....

[@Electronichub_05]

Nice fire extinguisher 😂😂😂

[@RGMadu]

Snapper or Snubber circuit at 12:28?

[@mysock351C]

These are basically built like class-D car audio amplifiers. HV DC-DC converter followed by switching transistors. Using a separate DC-DC converter to make HV rails allows much tighter control of the voltage than simply chopping it and passing it thru a transformer.

[@murattekin6111]

This guy is amazing.

[@Gameplayer55055]

Nĩĩce video! Good explanation and interesting device. Now you can power up your Tesla coil with accumulator :)

[@flos251]

Is 1000W enough for the tesla coil?

[@DiodeGoneWild]

That's roughly what it draws.

[@flos251]

​@@DiodeGoneWild Maybe you can make the Tesla coil portable and operate it with batteries

[@gordonwedman3179]

Stick it on the roof of your car. Tell people you are going to be travelling into the next dimension then turn on the sparks.

[@zx8401ztv]

Perhaps the output needs a larger inductance to round off the spikes a little.

[@Joaojplm]

Was you that build your 3-60v 0-40A power supply? it will be very interesting to see a video about it... tks

[@DiodeGoneWild]

Of course it was me :). It's documented on my website: danyk.cz/reg60v_en.html

[@albertomessina9492]

@@DiodeGoneWild Hi that's a very interesting project. Yesterday I sent you an email. I hope it will reaches you

[@zaraak323i]

So, can you plug the AC output into the AC input and charge your battery with free energy? lol

[@physicsisawesome696]

Iol😂😂😂😂🤣

[@bashaaksema94]

No no no thats not how it works. Obviously you need a power saving device between them to get a net gain of power duh

[@jesuschal3802]

We all know that that is true until ElectroBOOM debunks it.

[@dwdadevil]

I hope that the converter doesnt shut down like if you do the same for power banks mobile chargers

[@bashaaksema94]

@@cs.l5683 you know it was a joke right?

[@padmajanyesodharan6794]

Good video. Can you please show how to connect the output of the inverter ie, 230 volt to the oscilloscope

[@ernstoud]

More than 80 A via those cables? I doubt it.

[@medvesajt-cf3qf]

Very nice and informative video, as always.

[@abderrahmenjmal4799]

Can you give me the référence of transistor between 4fast diode and 4dual mosfet

[@peterasztalos6370]

Could that inverter run your SSTC?

[@mernok2001]

A módosított négyszög lehet ártana neki.Szerintem a legjobb még mindig a DC motorral meghajtott AC generátor.

[@peterasztalos6370]

@@mernok2001 Csak az nagy helyet foglal el és hangos is.

[@mernok2001]

@@peterasztalos6370 Bent a házban igen,de kint az udvaron vagy melléképületben jól is néz ki és szép hangja is van.Ráadásul mindig tiszta szinuszos és 3 fázist is könnyű előállítani vele.Én még élőben nem láttam 3 fázisú invertert.Az interneten keresgélve is elég ritkán találni és nagyon drágák.

[@Regulatorrobb]

Thank you thank you you're awesome!

[@jkobain]

DGW: - It's gonna be a lazy quick video… KZbin: 29:54 Me: Okkkay, right!

[@jkobain]

I must admit that time flies by quite quickly when you watch Danyk's videos.

[@haploideallel]

Danyk is our European Dave :) He even has his own DanykCad!

[@jkobain]

@@haploideallel I love her eyes!

[@haploideallel]

@@jkobain - Gotta admit here; that went right over my head, what you just said (about the eyes?)...

[@jkobain]

@@haploideallel yes. Danyk's Cat's eyes.

[@bikash3003]

Love from India ♥️♥️♥️♥️🇮🇳🇮🇳🇮🇳🇮🇳🇮🇳

[@tazgoth23]

You can use it like ups?

[@akhurash]

With that kind of power and output being modified sine wave the in rush current of the load can be quite high. I am quite surprised it’s not a pure sign wave output.

[@burhanuddinbhiwaniwala618]

Sir your videos are great source of learning.... Have you where reverse engineered inverter base welding machine

[@edinfific2576]

I thought it was a multi-phase (5-phase) DC-DC converter, but it seems that those 5 transformers are simply connected in parallel. LM393 is actually a dual comparator, and HA17358 is dual op-amp related to LM358.

[@MrTurboturbine]

How difficult would it be to modify the drive circuit to have a variable frequency output?

[@gabiold]

Actually it is a shame that it isn't a true sine wave inverter as all the hardware bulilt into it to be it as one. The only thing needed to make this a sine wave inverter or arbitrary waveform and frequency you want is to replace the control section of the secondary H-bridge. Could be possible with a microcontroller (DSP maybe, that's how better UPS-es do usually), or could be done in purely analog ways by driving the bridge with a switch mode push-pull driver (SG3525 maybe?) and modulating the reference with an analog sine wave. But if you want XTAL precise frequency, probably is is way easier to do it digitally.

[@victimovtalent6036]

Have you ever try to welds by car battery?

[@suleimannasiruisa5512]

nice fire extinguisher😃😃😃

[@mernok2001]

Is it possible to make 50Hz inverter with vacuum tubes?

[@johncoops6897]

Of course it is possible.

[@ravien6142]

Diodegonewild:lets make this quick layz video The fideo literlary almost 30MINS

[@sushibushimabushi]

How much current it takes without load ?

[@belalsmart7138]

Thanks Sir for all, I have one 1000 watt, voltage is stable about 220v but the frequency is double about 100 Hz, any solution for this ?

[@matysta11]

Jak je to se zemněním měničů 12/230V? Pokud bych ukostřil kostru, nenaměřil bych potenciál i na jinak bezpečné baterii?

[@SachinKumar-rf2bx]

Really nice work.

[@legominimovieproductions]

When using Mosfets, you have i.e. 1.4millohms, even at 100 amps (in case you run everything over one mosfet) why do they need such big heatsink?

[@TechGorilla1987]

You may not read this, but I use an app called MoviePro on my iPhone and it allows me to lock the camera in any orientation while recording among hundreds of other settings for recording. Never a flipped or vertical video in the house. :D

[@carlnikolov]

So this is diode gone wild and.. Wait he didnt say that this time!!!!!

[@DAVIDGREGORYKERR]

Had it been a ROYER Oscillator based inverter with a tuning capacitor across the driving winding you might get a nice clean sine wave.

[@KaizerPowerElectronicsDk]

Nice, you are generating 30,4% of traffic to my ABB 20 kW teardown video, of the 10,4% referencing videos. 3% celebration!

[@jeffm2787]

Certainly built in 2000 based on the dates on some of the chips.

[@alichank]

"Lazy quick (30 mins.) video"

[@rhiantaylor3446]

It would be interesting and not too difficult to replace the "modified sine wave" driver with a cheap EGS002 driver board for the output stage to give true Sine output waveform.

[@davidmorris-jones210]

Great info. Got a few inverters 3000 watts constant heavy at 4.2KG & 600 watts constant & a couple of smaller inverters Chinese OK for small stuff uptp 300 watts or less. With the cost of electricity in Britain now April 2022 I got a small solar panel & even in slightly sunny weather & not straight onto the panel according to my current meter just over 4 amp I have yet to see the full head-on sun. I use a 12-volt kettle with about 12 amp draw too & I have ordered a small 12-volt stove that draws about 12 amps too. I'm working on cheaper gas too. Its gone crazy here for energy prices.

[@stefflus08]

So you are planning to power the tesla coil with it so you can probe it with the big oscilloscope? Also if the cables are 16mm2 they would dissipate almost 20W over a meter. Seems marginal?

[@olvano]

very nice videos plenty info

[@Debraj1978]

For portable application, no-one dares to make a pure sine wave inverter. With quasi-sine wave, running a portable (table top) fan will make a weird noise out of it.

[@johncoops6897]

It's not that they "don't dare", but rather that consumers don't always need or want to pay for an expensive pure sine wave inverter. There are plenty of portable pure sine wave inverters available if anybody wants to buy one..

[@Debraj1978]

@@johncoops6897 True. Sine wave inverters costs more, has higher switching losses in IGBTs/ MOSFETs, but less harmonics (and losses in load). Moreover, sine wave generation needs more complicated software (LUT), PWM module with dead time. Square wave is easier in terms of HW design and also can be implemented entirely in HW.

[@andredevilliers0]

Good day Sir Thank you very much for all the effort you put in to help us learn about switch mode power supplies, dc-dc converters, inverters and other electronic products. I want to ask your advice please. I have basically the same setup as in your video above. I have a bench power supply (TTi EX354D) with an isolated output that I connected to the battery input wires of a 3kW modified sinewave inverter( Fivestar FS-I008) to power it. The inverter's input is 24VDC. I also have a CRT oscilloscope(Tektronix 465) with an earthed plug. The probes are rated to 600V and I would use the 10X setting. I have repaired the inverter and would like to view its 220V AC output with the oscilloscope. The output stage of the inverter is an H-Bridge with 2 mosfets in parallel for each leg of the bridge. From my understanding, I should be able to connect the scope probe tip and crocodile earth anyway around (Neutral and Live) to the output of the inverter, as the bench power supply is isolated from the mains supply and the inverter's output is also isolated from its own input via the multiple transformers working in parallel, like the one in your video. Should I use AC coupling on the oscilloscope? Can you please confirm from the information given above, that it would be safe to connect it in this way. Please let me know if you need any further information. Thank you very much. Kind regards from South Africa

[@TomboRectify]

I have tiny inverter and I think to it's same brand as this on. It's also made in Taiwan and its transistors are connected to the base with same little metal bar.

[@7c3c72602f7054696b]

Unedited videos are great. 😂

[@jkobain]

Sijuper gr8!

[@therealjammit]

It probably wouldn't hurt to make a multiple LC filter network for the output.

[@Michal5000]

D class amp please!

[@michelcmaza]

Good video. Hello from Brazil

[@kalashnikov_47z]

It blowed up my Expensive Sholdaring iron 😭

[@ELHV]

That output inductor looks suspiciously tiny for what's supposedly a 1kW inverter. I wouldn't be surprised if it let the smoke out at anything beyond 500W sustained power.

[@gabiold]

That's not the output inductor, that's an intermediate filter after the DC/DC converter.

[@annyan904]

Too good explanation

[@thepapervigilante2208]

Keep it up, god channel, god video

[@DIYwithBatteries]

Nice video Sir! 😊

[@superdau]

It's weird that with all that switching circuitry they went for a "normal" transformer for charging the battery.

[@rkan2]

ctrl+c & ctrl+v

[@mysock351C]

Those modified sine wave inverters are good for burning stuff out if you use something that has a capacitive dropper or any sensitive circuit in it. Made that mistake with fans and such during power outages in the summer. Expect cool breeze, get magic smoke instead. Not to mention those cables will get hot as hell on a 1000W load. They never seem to use wires big enough for the 100 some odd amps the thing needs.

[@Felix2417425]

It's also not good for induction motors and transformers, they will overheat and produce buzzing noise.

[@mysock351C]

@@Felix2417425 Yeah only motors I found that do ok (outside of universal motors) are shaded pole motors. Since theres no cap, just some extra buzzing, and heat, but they run hot to begin with. But yes any sort of induction motor with a cap forget it. Buzzes like hell and gets real hot. The inverter also shows a huge amp draw due to the poor PF as well.

[@mysock351C]

@@Felix2417425 I have run fridges on them out of desperation, tho, to save the food. They do ok but have to let it sit for awhile once the power is back or it will go locked rotor due to the hot compressor once plugged back in.

[@richardnanis]

The overshoot in the outputs doesn't look very convincing! The peaks may be 30% over nominal voltage.

[@Columbariusify]

you could be university professor. Explained with quality. an you do tutorial for crt tv? power supply board and color cathods?

[@EasyOne]

good

[@SigEpBlue]

Word of experience: do NOT plug a Kill-A-Watt meter into the output of these so-marketed "modified sine wave" inverters! While the meter CAN measure the current, voltage, etc., it will also get very hot, due to the non-sinusoidal voltage, and could cause permanent damage if left unattended.

[@johncoops6897]

So, you are saying it will be a kill-a-kill-a-watt-kill-a ??

[@KaizerPowerElectronicsDk]

@@johncoops6897 That would be the name of a 3rd device that kills the inverter that the kill-a-watt is plugged into... ;)

[@abhishekbiju5793]

Using A tungsten lamp with a modified sine wave inverter fluctuates the voltage at 50Hz

[@rubaiyatmehedi9337]

Your channel needs more attention mate

[@Zebra_Paw]

WTF... when making such a switching system for the inverter, couldn't they build a switching power supply for the battery??? This doesn't make any sense!