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- Опубликовано: 9 фев 2025
- Watch in Urdu / Hidi • #102 Single Board Inve...
in this video in this video i explained the working principle of single phase / 3 phase, Single Board / plate / circuit card Inverter IGBT or MOSFET, Welder Machine mma 200 / 140 ampere. - Function & Troubleshooting, i demonstrated how to troubleshoot, test and repair igbt dc inverter welder / welding machine.
this china MMA Inverter IGBT Welding Machine 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.
then these voltage are switched into pulsed dc voltage to drive the primary of the high frequency power transformer, which drives the output schottkey rectifier diodes, which provide the output for welding
all function is controlled by inverter control board, sg3525 is used to control the pulse width for current mode circuit, low voltage power supply is used to power up the circuit
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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![[436] How To Test IGBT / How to Check IGBT with Mulimeter / Why IGBT Damage](/img/1.gif)
Aapko bagwan lambhi umr de apke samajhane ka trika grate h sabhi video apki sabji video dekhi h mene
thanks bhai Ji
There's no videos like this on RUclips so far. Very informative and detailed video on electronic welding machine sir. Thank you very much.
most welcome
you can also check my urdu channel (haseeb electronics Urdu) to watch my videos in Urdu / hindi language as well
Very excellent video nothing like this on YT. You made it very simple and straightforward. With a lot of respect. Your videos should be archived because these are master level tutorials and study cases. Highly recommended. Thank you very much.
I love this ckannel and its content,Sir you are actually taking my passion in electronics to the next level,God continue blessing yoy
I’m a welding service technician in australia(very new to it 10months) this video was amazing. Very thorough and helpful to me. Thank you very much! This has helped me heaps as I don’t get much training at my job.
My brother is best engineer and a great human being. Thanks for sharing
Nice share dear friend , i like , nice work and video , complete watch
Thank you so much 🙂
My best engineer...👍
Very 100% educational videos. Thank you.
great this video was very help for me from Chile
It is my pleasure 💕
Very easy to follow. Repaired my unit frustration free due to this. Much better approach than the "symptom >> throw parts at it" approach. Thanks!
wow it is awesome. it is my pleasure that my efforts are helping
بہترین معلومات سدا خوش رہو
Asalm aliykum sir so nice
Thanks and welcome
Thanks you so much sir ,,,, i like this videos❤️❤️❤️❤️❤️
Most welcome
thank you very much sir...very clear explanation,easy to understand sir...god bless.
You are most welcome
انا من المغرب اعجبني هدا الشرح الممتاز تحية لك
best regards and special thanks
Walikum Salam! Great StaY Blessed 😇🇨🇳🇵🇰 Still watching 👍🏻
This video is very informative i learn a lot
Vèry informative..thank you so much.
You are welcome!
Your always aknowleged properly thanks habbees
You are so welcome
What else can I say more than expressing how well you explain this topic?
Good tiching karte hai 👍👌👍👍👌👌👍
special thanks
Always enjoy your teaching video and knowledge ,I have learnt alot myself from watching your great teaching as you explain things so well ,Many thanks to you.
You are very welcome
It was a very nice work. I watched it with pleasure.
I left my gift ,
Thanks a lot. It's very Educative.
Very informative video thanks for sharing 👍👌
MashaAllah haseeb bhai u r amazing engineer easy explained
Stay blessed always 🙏
Mashallah, salam from indonesia 🎉🎉
wa alaikum salaam dear brother
Gracias saludos desde South America , thanks
MashAllah amazing content and appreciate you ❤️❤️
Allah Bless you Ameen🌺💕🌺💕🌺
Simply excellent information!!! 🧡🧡
best regards
Sangat bermanfaat, salam support dan sukses selalu
very well explained ! TY
You are welcome!
Mantap Kak.....
Haseeb Electronics
Sir pull up and pull down resistor deep me video banaye please . Sir aapKe video me root video hote hai jo hame knowledge ko high level par le ji jate hai.
Always amazing 😍 give you 👍 good luck my brother 👊
Lk 178 wonderful sharing
Ads was too long😊
Keep it up
Doing good jon
Thank you so much 🙂
big thumbs up thanks for sharing stay blessed and happy good morning have a nice day
Good effort brother
So nice of you
28:35 You have 3 hands! Amazing! 😱😂
hahahhahahhahhahhah the fourth hand was hidden as well.
i am thankful for our deep observation, this was my subordinate learning the troubleshooting techniques
Hope & pray for your well my respected brother... Once again a fantastic job by you...
My bundle of wishes are always with you 🙏💐
thanks dear sister. thanks a lot for your valuable visit. stay blessed
Thank you for the lesson
Always welcome
Very clear explanation. Thanks for teaching me sir
Thanks for shearing good knowledge my brother I watch and like video please thanks
So nice of you. stay blessed
Keep going nice 100 like
love&like...you teach schematic diagram inverter
best regards and special thanks
nice work dear bro thanks for sharing. stay blessed
Very helpful video👍👍👍 like👌👍
Many many thanks dear sister
Great presentations.
#vedikworld
Thank you so much for taking the time to make these videos 👍🙏
My pleasure!
please accept my best regards
Recien me estoy iniciando en la reparecion de estas maquinas de soldadura, y encuentro sus explicaciones muy acertadas y muy bien dirigidas, felicitaciones y muchas gracias por sus aportes
nice tips
nice up loud thanks for sharing like
Thanks for visiting
Wooh this is the best esplaination have ever gotten thanks man nice one and a big thumb up for you
Pls am trying to fix one inverter welding machine with out no out put to spark up electrode, can you please Troy light on the possible causes that can cause output problem and how to fix it
best regards for your valuable appreciation
in your case, first of all verify the dc voltage at main dc capacitor
then check low voltage power supply for 5 volt 15 -15 volt
then check the current setting pot
then verify the IGBT drive, if no drive is there then check control card
aslo check video number 286, 287, 288, 289, 291, 292 & 293 every video is to discuss each sub section and its components and their function and its test troubleshooting
Very good engineer
Great presentation with very detailed explaination. Thanks brother for sharing, keep it up...
اخوك من مصر واحبك في الله على هذه المعلومات القيمه جدا وارجو المواصله في جميع صيانه ماكينات اللحام بانواعها المختلفه الارجون والكهرباء والسي توco2.migmag
Thank you Muslim man for your information.. and I thinking to manufacture in future انشا الله to make our Arabia module welding machine
Nice Friend 👍😉
Lk 12 walekum Salaam bhai
Very well explained 👍😊
Good work my brother God bless you 🙏 💯
السلام عليكم ما شاء الله بتوفيق دائما يارب أخي
Excellent information on welding machine
Very useful information Sir Thanks for your effort
Thank you so much for sharing❤️❤️
You are so welcome!
Kindly make a full video on practical inverter full bridge design and construction.
Thank you
nice effort keep it up...
Mashallah very nice sharing 👍👍
Thanks for sharing!
I have IGBT welding machine, has display but no output...
I will try to diagnose based on your tutorial..hoping to see the trouble...
awesome excellent uploading wonder content appreciable big thumbs from me thanks for sharing stay blessed & happy ameen take care have a nice day ahead thanks
Interesting videos..please go ahead
Excellent Work My Dear Brother Liked Very Mcuh # 40+40
thank you master....
You are welcome
Nice video 👍👍
Super likeeeeeeeee 😉👍
Nice sharing👌👌
great job sir
thanks a lot dear
Very informative video
very good video
thanks a lot
Thanks for the video.. you're the best ☺️☺️.. please what is the amperage of the rectifier?
Sir kisi bhi ic accoland Google per kaun si site se search Karen please bataiye sir main aapki video dekhta hoon video dekh kar kafi kuchh sikhata hun aapki video bahut acchi video banate hain sir please iske bare mein bataen
Really good
it is my pleasure
Superb informative video
Swahaba thanks so much
Always welcome
impresionnant votre explication chapeau bas dear
i have an issue with the same [ the display fluctuate from 80 to120 with no output can you please help] cheers
best regards and special thanks.
if it is fluctuating, that means there may be something wrong at inrush protection.
please check the main relay at input AC voltage (parallel to the NTC / PTC thermistor)
reply when you verify it. i think this is main cause for restarting of the circuit (causing fluctuation)
2nd possibility, check low voltage power supply (24 volt smps circuit for regulated voltage)
@@HaseebElectronics
dear sir many thanks
i will check it and reply afterwards
cheers
sir for you information
when i measure the output voltage at the transformer it seem too high [40vdc]
i removed the transformer to have free space
and i noted that there are a dry solder on a resistor [5.6kohm]
many thanks for your help
the machine have already test and deliver to the customer
Perfekt !
best regards and special thanks
Did u connected the bridge rectifier to direct ac current
first bridge rectifier is operated through soft starter circuit, then it is directly connected to line voltage, because it is high power circuit
جزاك الله خيرا
Very educative videos sir. Now i have this question........ What could be the cause for the igbts always failling upon switching on? (reference is made to the welding machine ZX7-250 IGBT machine make)
Thanks sir.
Most welcome
Nice information
Please put the romanian subtitle thank you
Very informative, you mention capacitor tester can you make a DIY capacitor tester or esr tester diagram
بارك الله فيك
I received a single board. there was not any igbt. when i install 60T60 it doesn't do anything. when i install 60N60 its runs normally but igbt get hot within few seconds even bulb in series and without any load. do you have any idea what could be the season ? Thanks
Great video
Can you please explain how pulse forming network works..
sure a detailed series is upcoming very soon by this week
I have this welding machine that doesn't weld. i noticed the IGBTs were gone. i have removed and replaced but it still not welding. on the multimeter at 200-ohms reading, the resistance is 20-ohm from gate to source even when mosfet are absent
am i missing something
Can we use voltage drop method at high frequency to test non polar capacitors??
Very thankd
Most welcome
Can we varry the out put voltage of welding machine?
yes we can.
in welding machine the feedback is based on output current
to convert it to voltage regulation, the feedback will be converted to voltage mode feedback