How to Repair 2000W Sine Inverter
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- Опубліковано 9 лют 2025
- How to Repair 2000W Sine Inverter
Today, I bought a broken 2000W inverter from a second hand store. I will show you how to fix it.
Sửa kích điện 2000W.
Facebook group : bit.ly/Creative...
The repair steps
-Check the fuse
-Check mosfet - Use a multimeter in diode mode. If a value of ~ 500 between pins D and S is a good mosfet, otherwise, replace the mosfet.
-Check the DC filter capacitor 12 - 24V
-Check the 310V filter capacitor
-Check fast diode
-Check PWM signal from SG3525 or TL494 (about 35Khz)
-Check the H-bridge mosfet (310VDC - 220VAC)
-Check the SPWM module and driver ic.
Replace broken components and test with 12 - 24v power supplies at 1A current. If the fault is still, the 1A current cannot damage the inverter.
If you like my video, give me a cup coffee. Thank you very much.
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Facebook group : bit.ly/Creative...
Contact: Magnetron0989821611@gmail.com
Phone: 0989821611
#inverter
#2000W
#SG3525
If you like my video, give me a cup coffee. Thank you very much.
Donate : www.paypal.com/paypalme/phdhung
Facebook group : bit.ly/CreativeElectronic
Contact: Magnetron0989821611@gmail.com
Phone: 0989821611
Which is better, de-solidering the components and reading separately or reading the components directly on the board ?
Appp
Speak
With your help, I was able to identify 6 defect mosfets. If my inverter works after replacing those, I will buy you a cup of coffee. 😀
Boss how to repair power fault my power inverter after 5mins..
Oh god, thanks alot for the video, 100% content 0% nonsenses. Tired of all those 99.9% talking nonsense but 0.1% contents. Support your video !!!
Today, I bought a broken 2000W inverter from a second hand store. I will show you how to fix it.
Share us such a beautiful full sine circuit Master's health
Yes, I will design it, wait for me
@@PhdHung where are you from?? Bro
Can you share me the second hand store, please?
Envie seu zap para mim ou ligue para mim para poder ver o preço desse produto que eu estou necessitado desse
Wow - lots of parts to swap out - something I or 99.99% of people would never do..great result though.
I only fix motherboards or power supplies if simple stuff like blown capacitors and maybe diode pack or fuse. Thanks for the detailed breakdwon though...very informative.
This is hilarious. I'm still waiting for delivery on a 2KW 72v dc to 220v ac unit like this I ordered about a week ago. May be I should have ordered another filter cap and some MOSFETs to go along with it. LOL
Nice work and right- to-the-point video. Just Great.Please post more like this. Inverter repair shops want $$$ for repair like you did. 🎉
Great Video Thank You God bless!
Thank you very much, people like you give me more motivation to make videos.
You make repairing an inverter so easy i have to say you are blessed with a lot of knowledge...!!!😲
Superb repair. I love that you show what you're doing and why. It's very logical, and so satisfying to see the device working. You're one of the very best doing that on youtube (or I haven't checked well enough :D)
I also like the concise but very informative text you put in. Simple but super effective.
Thanks bro
@@PhdHung 18:45 where are fuses that you removed first?
Excellent video. We would like you to continue publishing such videos
I will try
You are great ! Thanks to you, I have repaired my inverter !
Excellent Bro you look a high level professional. Keep it up
thanks bro.
You are just amazing...I never skip ads on your videos
Thank you so much
The best I have seen online so far. ❤
AC work bare foot, you're a brave man ;) Loved the video, thanks for sharing!
I personally would've changed the other two MOSFETs to match the new one.
BTW good job
Thanks
Sounds like you have a busy shop, good video thanks, hope it was worth it, a lot of work.
Great teaching
Thank you
Very good information about inverter and good teaching. Love from Pakistan thanks
Good sharing teacher
Very interesting especially checking pwm with oscilloscope, what needs to be inline to stop damage , your video is very instructive for repair . Thankyou for posting
You are a magician,congratulations ! I'm impressed
Thanks
Sehr gute Arbeit ohne Sicherung funktioniert auch
I love ur explain sir very 👍 Good sir
I like your working style 👍
Wow! You are amazing, great job! Greeting from Brazil!
If i dont have oscillope can i use my DMM to test SPWM signal without affecting the signal
ok bro. If you use a classic multimeter. You will see it fluctuate a bit. voltage is about 5.5VAC.
@@PhdHung noted. So it is within that range.
Great video!! I like the way you use the solder sucker as if you were reloading a shot-gun! LOL!!!!
:D me too
Very good video
So much knowledge being shared here. Thank you
Good work brother
thanks bro
Most welcome brother.Im from say Bangladesh?
Nice work!Thanks for sharing!
Very good work
Very Helpfull Knowledge
Thanks, hope you enjoy it
Very good troubleshooting
That style of clamp used to hold the MOSFETs and diodes to the heat sink is much more effective than just bolting through the mounting hole of the TO-220 package.
Bro, Im excited for your Silver playbutton 💓
@@PhdHung Bro, I bought Mt7601 and in the datasheet its operated by 3.3V . I supplied 3.3V but not work, can i use 5v? I bought the one that you search in the net in the video of wireless camera
what a amazing work good job thanku for giving a chance to watch you
Very professional. Thanks you for share.
Cám ơn nhé :D
i dont quite understand all of it... but this video is very helpful. thank you. you earned a new subscriber. and the inverter is exactly the same as the one im trying to fix 😀
Beautiful work!,Thanks for sharing it!
You're REMARKABLE 👌
Very nice and informative
Thanks bro
Excellent repair!
I like this repair
Thank bro
Interesting and helpful but back in the real world these youtube fixes never seem to be the faults i get. ☹️
En primer lugar muchas graciaspor tus videos, eres extraordinario reparando inversores, me han regalado dos Vision Ups System averiados de los llamados Online, son grandes y no me atrevi a destaparlos, pero despues de ver tus videos me he animado, pues lo haces tan facil y con esa destreza ,veremos haber como quedan.
Inverter w/ ferit transformer is more compact in size
Thank You, Master Zirconium
Great video, but how many folks watched this thinking they actually could accomplish a usable repair but now realize they wouldn't get past the fuse checking/changing?
Nice repair skill. Thank you very much for this video. Can you do project on power supply to do inverter test for 12v to 48v. It will help where no battery is available for testing inverter.
Super. I have the same PCB but with different problem. Is there a circuit diagram available?
Good work thanks for the video
Wow. Brilliant work.
thanks
Most of the commercial inverters use TL494 PWM circuit in both DC boost and H-Bridge section. They use LM324 or LM358 op amp for other funtions like over under battery voltage protection, over load short circuit protection Temperature sensor Fan and led indicators. They are reliable and easy to repair....Please design an inverter using these components..Thanks in advance
Yes, but with sine inverter, we cannot use TL494.
@@PhdHung Yes you are right..These inverters are probably modified sinewave..(I dont have an Osc Scope)I am using a Chinese version 1000 watt...It works well with my PC, laptop and other power supplies..Thanks for the reply
dopo vari inverter che scoppiano appena collego un freezer credo che ne farò uno con trasformatore e mosfet alimentati in pwm semplice, almeno senza protezioni: salto il problema (forse) e sarà sempre riparabile dal costruttore 😊
Good idea
thanks bro
Thanks so much for your valuable information
Good knowledge
Thank bro
Nice presentation. Thanks
Hello 👋. Thanks so much✅✅✅✅✅✅🌻🌻🌻🌻🌻🌻🙏👋.
I love this thank you bros. sir once more I need your help why is my inverter mosfet overheating till it gets burn thank you
Facebook group : bit.ly/CreativeElectronic
Very good
Thanks bro
👌👌🌹GOOD TICHING KARTE HO AP THANKS 👌🌹💖😂😆
Good effort
Good job !!!
Super.....U r genius 👍
Fantastico....É facil encontrar os componentes para o reparo?
Hi Home Made 102..
Many thanks for your great effort to do this kind trouble shooting video to help others.👍😊
The PWM square wave show some small spike on top side.
Is it the spike cause of Mosfet dead short?.
or anyting else.
Thanks.
No, it is due to totem pole driver.
I don't know why, but when adding totem pole driver to SG3525. will appear small spike. and it does not affect the mosfet.
Ok. Thanks.
Hey man, Awesome video and great explanation. Honestly the best that I've ever seen in my live, one question thought. Why do you test MOSFET with diode mode and continuity mode?
Because a right MOSFET has G and S seperate from D
Nice sir👍
i like this video thanks you
Thanks bro
what i realize when working with inverter as a newbie is an osciloscop is almost a must, working with inverter and only has a multimeter is rather painful
How do I find erased ic number in China car inverter?
Nice video
Thanks
Use desoldering wire to remove solder it's better then desoldering pump
It is only good for SMD components. With plug-in components, you cannot use desoldering wire.
I like the pump
Hi the samlex 1500 12v that I told you before is now showing over load. I change some of the mosfet as you told me and now giving me a trouble again. I appreciate very much if you guides me how to fix.thank you so much.
THANK YOU VERY NICE
Nice 👍✌
I liked your techniquei but just can subscribe. Thanks.
really thank you so much
Those transistors may need Heatsink i think .
Nice video! 👍
The chassis is heat sink :D
Excellent
Great! Thanks for showing.
Better than the best. Full details, no fuckin back ground music. .
rất chuyên nghiệp 👍👍
Thanks bro
excellent job, well done.
Thanks bro. Have a nice day
Good repair very complicated. My Inverter only burn 1 MosFET.
Good technician
good job, for the next video discuss about 12v 2S battery stabilizer = 24v charging
Yes, I will try
If you make 12 v battery stabilizer How about =12v thanks
Saya suka dengan anda tidak banyak basa basi langsung point permasalahan saja
Saludos desde Colombia. Gracias por compartir.
alat e sampeyan iki lengkap yo mas, pinter sisan... pancen joss :)
if some of the mosfet you measured are in parallel, it's possible that they didn't all burn
yes.
@@PhdHung did you check for that?
Awesome job Weldone And thank you 💓
Nice work bro.
Thanks bro
Comgrats! Nice Work. I'm waiting to see a high frequency inverter all built by you! ;)
Yes, wait for my next project
Thanks... turned out i had a lose connector. From the LCD's Switch to the main board.
a ơi em có con changi 1000w bị cháy bo sin giờ chế kiểu gì cho dễ dc a
Độ egs002 vào thôi
Awesome work!
This is great, I have a question for you, can you convert a pure wave inverter from 24v to 12v?