#287
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- เผยแพร่เมื่อ 9 ก.ย. 2024
- in this video i discussed the circuit diagram and how to repair and troubleshoot inverter IGBT based welding machine. in this section i discussed the high frequency ferrite core high current transformer and the output rectifier circuit. the smps transformer takes input drive from IGBT transistors and the center tapped secondary is connected the molded D92-20 rectifier set connected in parallel. there is a shunt which is used as a current sense. the SG3525 IC provides a drive signal to the IGBT gates through gate driver network.
this china MMA-200T Inverter IGBT Welder Machine - Circuit Explained & Troubleshooting Part -1, is single phase 220 VAC operated. it have a bridge rectifier which rectifies the main ac voltage into dc voltage, which are connected to pair of dc capacitors through a relay contacts and in parallel 110 ohms ntc resistor. this nts protects from inrush current and upon receiving relay drive signal it switches the rectified voltage to capacitors so, the ntc is bypassed to get full current to drive igbt.
after watching this video you will learn:-
how to #repair #inverter #igbt #welding machine or welder
2. functional description of inverter igbt welder machine
3. how to troubleshoot arc welding machine
4. how to understand mma-200 circuit diagram and how it works
5. if welding machine does not work, how you will repair
6. if main circuit breaker trips off when power switch is turned on
7. over current OC LED light turns on
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Assalamu alikum bhai,apka videos more useful to me,allah apko jaan our maal our akhirat ki hifazat kare
Wa Alaikum salaam
Jazaak Allah kahir
stay blessed
Sir. I have not found anyone like you do in explaining about circuit. Please continue to share your knowledge to the world. You made the circuit easy to understand.
best regards and special tahnks for your valuable words
very good ,this is the best smps tutorial channel in youtube's history, so great job ,keep it up.I had a question about smps , i have an smps that have correct stable , regulated voltage but it has very little current , it doesnt even light up an LED how can i repair it , please help me .
please give me solution as soon as possible ,it is for a project thank you
Lk150 wow awesome excellent informative video nverter igtb big thumbs up from me thanks for sharing stay blessed & happy ameen take care have a nice day
Thanks for visiting
... Sir, I am so impressed of your tuturial videos, they are so educational, informative, and easy to understand because you're explaining it in English,, thanks so much, more power to you and Godbless you always!!!
thanks a lot for your valuable feedback. best regards
I watched last night and was reminded how I completely forgot how the voltage and current is changed with the digital systems power supplies. I didn't think about how a square wave can be transformed and have seen in the past... though really stuck this time for the high power designs as well. Guessing from waht I understand, the torroid or high magnetic permeability material core is designed for the frequency of switching... maybe a midpoint if there is adjustment. Then the typical winding ratios for the desired midpoint of output voltage(s) and current(s). Then that alternating current square wave is rectified so to be a DC output. I'm new to the high frequency transformers in general, so is neat to have that learning moment. Thank you sir and kind regards, In Christ.
Very nice sharing 👍
Excelente explicación muy detallada la explicación felicitaciones gracias por compartir saludos cali Colombia
i love watching this channel i've learned a lot
Thanks a lot dear brother. Your channel is also very informative but you share very rarely
Like 13
Great tutorial my friend 👍🏻👍🏻👍🏻
So helpful 👍🏻
Firstly comment and view very very very nice and skill work for all us this ia academy pin me
Bahut achha lagta hai. Keep sharing
Very good sharing. 👍9
U r soo intelligent & talented MashAllah .👍great work
Fantastic share 👌👌👍 like 👌👍👍
thank you very much sir for sharing,very clear explanation...God bless..
thank you very very much sir for sharing your knowledge,God bless.
Lk
Ek aur knowledgeable presentation
Nice upload
Good evening my sweet brother. Again I am here to learn how to explain everything.. You are perfect in your work
Excellent Sirji, great work.
special thanks
@@HaseebElectronics SirJi, my model do not have relay and NTC. Pls suggest me some fuse or circuit breaker for input protection from high voltage and subsequent hi amp draw. My unit inrush current is 48 amps.
I think the way your explaining your videos are excellent, manny thanks 😊
very bountiful channel , thank you
jazaak Allah khair. thanks a lot
Thank you so much Sir
Best explained.
best regards and special thanks
Excellent explanation thanks
Thanks a lot
Great sharing and very well explained like always, beautiful presentation. Keep it up bro.
Like 5 sir good work always
Watch full video bhai your work zaberdast👍🔔
This is one of the best, Excellent and detailed tutorial on youtube .Thanks for sharing your valuable knowledge dear brother.Allah bless you.
Excellent explanation, you have a simple way of breaking it down.👍 And your English is nice! Thank Jesus 🙏😊 I'm so very interested in how exactly these work.😎
please accept my best regards and special thanks for encouraging my efforts in sharing the knowledge
Very nice my dear brother 👊 God save you give you bigger 👍
Very nice
thanks for sharing
Good explainetion. Good work
29 lk 👍 bhai
great video good upload ❤️
Thank you as always
It is my pleasure 💕
جمعة مباركة
بالتوفيق اخى👍👍👍
Excelente, gracias
MashAllah bhai very nice good sharing video 🙇🙇🙇
Always learning with your videos.
Thanks so much mate, you are clear and informative!
best regards and special thanks
Very nice
Nice tutorial
Thanks for sharing
Always informative video
Thanks for this vedio
Great job ! Thank You.
it is my pleasure
Very nice information video 👍stay connected
Great Video dear
like 102
Great sharing
77 nice video sharing
Simply excellent! Thank you.
I luv you brother Haseeb!
Amazing ✌️❣️ tutorial
Good Luck my Dear Brother
Excellent my friends 🌸🌸
great video good upload
as usual always good sharing 👌👍
Like 39 walkum aslam nice information
Thank you sir for all the lessons you give us. Can you explain to me how can I operate an electronic welding machine (converter) using 320v DC solar panels knowing that there is the obstacle of the safe start with the thermistor.?
%ASSALAMOU ALEYCOUM TA ALLAH WA BARAKATOUHOU% super bien maître
again watched
thanks a lot
Good work
الله يعطيك الصحه أخي احلى بصمه
Wow zaberdast bhai i also made friend you.👍😍
Hi brother how are fine ? It’s excellent video everything is clear. We wait for part 3 and 4 it’s very important to discus about command and output voltage why it is constant but the current is adjustable? Thank You very much about these efforts.
tnx
it is my pleasure
Merci
Hi Haseeb, I have a single board jasic inverter with a problem. The output rectifier IGBTs all exploded so I replaced them and the machine now has 75v OCV (normal) but won't strike an arc (only very weak sparks), voltage seems to drop to around 50v when it sparks slightly. I've already blown up one set of IGBTs. The output tests ok as per this video. What should I try next? Many thanks.
Very very very nice
Can explian test igbt transistor in board and how find short in this board
Nice vidio sir
veryyy good
most welcome
Lk 131 😊👏👏👏
thank you
You're welcome
sir thank you for the videos ı want to ask you a question why the resistor and capasitor using paralel of the the diodes what it its mision
Verry good sir,
I need your help
Output voltage 30 aa raha hai, lekin spark nhi ho raha, kya aap meri help kr sakte hai?
WELCOME welcome dear
aik side ka mosfet / IGBT damage ho sakta he
ya aik side ki drive pulse miss ho sakti he
transformer ki secondary side ki winding ya rectifier circuit dekhein
26*** ho ..good job👍👍👍👍
I was wondering how to know wheater caps were dc. In the previous video u measured dc voltage across capacitor. I though caps in dc act as open circuit and ac it act normal. Ie charging and discharging phase
Sir why you did not explain all parts that installed at that part example resistor. , mylar capacitor what is the purpose of them in that section
i am sharing the working concept, for example IGBT have to receive pulse and it have to switch
if i go in deep details of every component, viewer complain to me for long videos. so i try to make it some short
if you suggest, i will try to explain in more detail, i have no problem
Next, part 3 🙏👍
I have a welding machine with one card, it was not working, but I fed it 24v, so the screen and the fan worked, but there is no output, knowing that the ignt is intact and the schottky diode is intact. Can you help me fix it?
what is the output voltage in caacitor if you connect line in 220v supply
please check video number 305 for getting your detailed answer with practical
or
just multiply input ac voltage with 1.414 to calculate dc voltage on dc capacitors (after bridge rectification)
Sir ! Welding machine output terminal pr bahot zor se shock maar raha hai..kya problem ho sakti hai bataye plz
From d c supply you receive d c...so this is inductor or transformer...because transformer is for a c only....you receive dc from previous supply or card
Like 102 🌹❤❤❤
APT30D60BHBG Ultra first rectified diode haa?
السلام عليكم
Is it possible, please, the entire circuit diagram for welding machine?
How much voltage does this transformer step down...from what value to what value
You should provide a block diagram and show where this output rectifier fits into the entire circuit.
Asslamualaikum
Bhai mere welding machine kabi kabi shock dera iska koi hal batayo
is ke output me class Y capacitor check karein
K bhai iwill check.....
Assalamu alikum bhai.mera mosfet inverter welding machine hai,3 board wala...holders me shock ka problem nahi repair hora kya kare??
Sir app ka whatsapp num mil jayi ga
Third
Thank you sir for all the lessons you give us. Can you explain to me how can I operate an electronic welding machine (converter) using 320v DC solar panels knowing that there is the obstacle of the safe start with the thermistor.?