291 Inverter IGBT Welder Machine (Part -5) Repairing Low Voltage Power Supply - Repair IGBT Welder

Inverter IGBT Welder Machine (Part -5) Repairing Low Voltage Power Supply - Repair IGBT Welder
To watch Part 1 • #90 Inverter IGBT Weld...
Part 2 • #91 Inverter IGBT Weld...
Part 3 • #92 Inverter IGBT Weld...
Part 4 • #93 Inverter IGBT Weld...
in this video i demonstrated how to repair switch mode power supply. how to repair power supply when we cannot find equivalent or substitute of a smps pwm ic. in this circuit SD6834 / SD6832 Current mode SMPS PWM controller circuit was damaged very badly and there was no equivalent available in market. so i modified a power adapter for hp printer, which was giving this ic is used to provide offline switching to produce 25VDC which 16 VDC and 32VDC, after modification it started output 27 volt, which i connected to output points of low voltage power supply of the power board. which are regulated in further +5VDC using KA7805 LM7805 and 15 VDC using KA7815 LM7815 UA7815 to provide biasing voltage for display circuit, SG3525 inverter circuit to drive the gates of IGBT transistors. video is narrated in urdu / hindi language and how to repair and troubleshoot inverter IGBT based welding machine. it is titled Inverter IGBT Welder Machine (Part -4) Low Voltage SMPS Circuit Explained & Troubleshooting because this power supply is to convert +330vdc to low voltage 25VDC.
in last videos i discussed the Inverter IGBT Welder Machine (Part -3) IGBT & Gate Driver Circuit Explained & Troubleshooting sg3525 oscillator circuit provides a drive signal to the signal transformer which have two secondary winding (180 degree out of phase to each other) in each secondary there is a gate pulse forming network for igbt. igbt switches and provides power drive to the high frequency 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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[@janasmeal7916]

ma shaa Allah superb and informative tutorial. thanks for sharing your excellent work. dear brother you are doing a great work for people who seek knowledge

[@user-zg8rr1xh6m]

@@HaseebElectronics jazak Allah khair dear brother

[@kennymanchester]

And my wiwfe wonders why I never throw away old power supplies! Very useful solution. Way to think outside the box and salvage added useful life of welding machine

[@PurityVendetta]

Thank you so much for sharing your incredible knowledge. It's so helpful watching a real expert in the art of electronic repairs. Greetings from the uk.

[@PurwakartaTV9]

Assalamualaikum
Extraordinary very smart and professional in doing selktronik a job that is very difficult and requires patience, Good Job My Friend

[@desisimplevlogs1]

Masha Allah brother nice sharing about repairing of IGBT welder machine

[@kuchpanktiyajindagiki]

Aaj jaldi aa gayi hu. Another informative sharing. Dekh rahi hu.

[@HarlavanisPanagiotis]

Wonderful upload dear friend, happy weekend!!!

[@ZaykaIndia]

Lk 75 Assalamualykum very useful upload big lk👌👌

[@AbdulMomenZargar60]

Good Morning & All The Best My Dear Brother

[@MusaMusa-sw4ek]

Your are lucky to know electronics like that may allah bless you. I'm Musa from Uganda East Africa.

[@HaseebElectronics]

best wishes dear brother
stay blessed

[@dchannel7477]

Mantap. Saya suka rangkaian elektronik

[@mariocontreras6622]

Thank you for you explication in spanish..was a very help..

[@HaseebElectronics]

You are welcome!

[@adeebakashif]

MashALLAH Keep Doing Great work Best wishes always with You👍🏻🇨🇳🇵🇰

[@fuweiwang2580]

Thank you.Your method is very good. I am Chinese. we buy the IC of Sd6834 easy in china.

[@ultimatefoodie2796]

Mashallah, very informative technical video, stay blessed dear brother

[@roseelectronics4582]

This series is great! I learned some fine details about troubleshooting and problem-solving that I never found anywhere else. Thank you, Haseeb. Keep going! The electronics repair community needs you!

[@sergioruppel7269]

Gracias por el video, interesante la forma de solucionar la auxiliar! tuve un problema similar y ahora voy a plantear eso como solucion con mi maquina. Saludos desde Argentina

[@adventuresofhammadasif7990]

very good inverter explaination bhai

[@MohsinNawazVlog]

mashaAllah ... keep creating and inspire others

[@khanlalavlogs]

Beautiful share with the same detailed explanation like always, keep it up brother and have a nice day ahead.

[@hashiraleezey5154]

Ma sha Allah thanks for sharing your valuable knowledge it is a great job 👍 stay blessed

[@sobisobikitchen]

my dear friend Mashallah keep it up allah pak ap ko kamyb kare stay connected full watch dost ji 100

[@sublimeelectrons8699]

JUST WOW!

[@channeltipstircks]

5 very informative n helpful video share haseeb bhai
stay connected

[@user-pq5tz5pn4g]

السلام عليكم ورحمه الله وبركاته فيديو رائع بتوفيق اخي

[@YeMeriLifeHai]

Very informative thanx for sharing

[@shahnazslifestyle]

wonderful upload, full watched, lk💜💜💜

[@alexvanstaden6734]

I learned a lot today, thank you Sir

[@kuchpanktiyajindagiki]

. Thanks for sharing such useful upload which helps me in learning how to speak in a impressive way my sweet brother.

[@BabaPigeonHouse]

Salam very good janab stay blessed nice sharing

[@rakeshb.dwivedi21]

गजब नाॅलेज है ‌

[@samiafazal]

Mashallah superb informative full watch ck

[@fatimaKitchen12]

Like 35 walkum aslam mashaAllah nice vedio

[@saleemkhan-mx9jw]

Very useful practical experience for all users. Thanks for sharing for all.

[@HaseebElectronics]

You are most welcome

[@natureprasanga]

Great video sir

[@petrosmanolakis296]

Very good 👍!! I enjoyed all the videos . Especially the bypass of the broken icc . It was really excellent idea!!! Well dan.

[@HaseebElectronics]

i am thankful. best regards

[@kmhovlog6185]

Fully watched awesome mashallah superb informative vedio big thumbs up from me thanks for sharing your experience with good communication skills working good morning have a nice day love yours performance well done good job keep it up jumma mubrook ameen

[@BINKASMINOFFICIAL]

Good job nice sharing friend barokalloh

[@goldandinformation2635]

Nice sharing very informative video best wishes for you brother

[@kitchenwithhadiqa8245]

MashAllah bhai but achi video

[@Dr.QaisarAbbas99]

nice job dear bro thanks for sharing
stay blessed

[@MostafaMahmoud-ts8ew]

Great job sir.. but you should delayed switching on external power supply until dc main capacitors charging to operate relay to make soft start for your machine .. thanks sir

[@meandbabajan76]

Very nice and good work

[@rugtacilansarkamustaqbal8974]

Mashalah pro keep going

[@Mubeenarecipesandvlogs]

Lk 89 very well explained 👍😇

[@cookingengineering9299]

Happy to see u

[@thahiraskitchenvlogs]

Masha allha👍👍👍

[@jafinch78]

I've wondered what the easiest way to open the laptop power supply plastic case is? I did read somewhere in a video's comment they use gasoline or diesel on a q-tip around the seam and wait some time, like I forget. 5-30 minutes and then separate. Great thinking and thanks again for sharing. Kind Regards, In Christ.

[@farihabaloch4805]

Bro 👍 91 brilliant work👌

[@saleemkhan-mx9jw]

You are great sir.

[@HaseebElectronics]

best regards

[@burhanuddinbhiwaniwala618]

Sir very informative video... Ap jo theory k sath explain karte ho bahut asani se samjh aa jati hsi...
Mein ne recent me hi welding machine bana sikha hai.... Or aapki video se bahut kuch sikha hai.... Subah shop me kaam karta hu or raat me 1 2 baje tk jag jag ki apki videos dekhta hu... Abhi mere pass ek 400 amp ki 3 phase welding machine aai hai use welding karne se amps or output dono drop ho jata hai... igbt Mould test kiya wo ok bata raha hai.... kiya app bata sakte ho ki fault kaha se hogi...

[@zahidainlondonvlogs]

Great sharing as always. Brother you are such a good teacher bless you .
I'm watching you from England 🇬🇧
#zahidainlondonvlogs

[@devilgaming-be8yz]

I like all vidio bhai

[@natera_tech]

Agradecido, acabo de reparar mi amico power tig-205 de la misma manera gracias a tus explicaciones pude entender ciertos aspectos

[@HaseebElectronics]

buenos días querido hermano. es un placer que mis esfuerzos sean útiles. y estoy agradecido por su valioso comentario, siga siendo bendecido

[@electroniquepassion]

Super 👍😉

[@brucelindeva4052]

Super sir

[@HaseebElectronics]

thanks a lot

[@cookingengineering9299]

Salam bhai

[@PrathameshBhat7288]

HI5 buddy! Super U P L O A D:)

[@sagster]

Very good info and fix Hasseb bhai!
Where did you learn electronics from?

[@rohelkhan3240]

Super

[@HaseebElectronics]

so nice of you

[@nafizashila1339]

👌👍

[@AbdulMomenZargar60]

Like No # 80

[@deepakkumarkumavat7016]

Sir I want learn from you welding machine

[@kntrol77]

thanks for your ic power no viper12

[@zakiausa]

Thanks for sharing I am watching full video go and check please your computer thanks 😊

[@npmachinery6808]

Sir islama ekam sir 25amp control vedio full repairs

[@mmahammad7123]

Helo sir mosfet welding m/c ka circuit diagram ka video banaye.

[@HaseebElectronics]

i will try to share it soon

[@pralhaddongre8585]

Very nice sir. thanks.

[@HaseebElectronics]

Most welcome

[@carmenlombardi7955]

Buy the same welder.have parts.

[@michaelpelumivictor5711]

Hello sir, pls why output diode if replace d diode it will burn be for 10min pls what is problem.

[@palanipalani5661]

Hi bro
How to igbt 200 amp welding mechin body and secondary electric shock problem

[@HaseebElectronics]

there are calss y capacitors connected from secondary to chassis are disconnect open or short

[@rohelkhan3240]

Hello sir

[@HaseebElectronics]

welcome dear

[@prakashthirani2055]

My smd igbt welding machine is not working .24 volt section is not functioning .Kindly upload a video to repair 24 volt section.

[@ironhead320]

I have one that doesn't power on and keeps blowing my breaker everytime

[@gselectric3428]

Sir power supply ketne amp ki hai

[@HaseebElectronics]

ye normal printer ki power supply he
2 ampere.
welding machine keliey aap 1 ampere ki supply use kar saktey hein

[@gselectric3428]

@@HaseebElectronics thanks sir u r great

[@devilgaming-be8yz]

Sinwav invarter curcuit in. Urdu

[@Numltv]

low voltage power supply

[@rohelkhan3240]

Plz

[@HaseebElectronics]

welcome

[@hugoegon8148]

Very interesting repair. Its a pity that you did not weld. 😢

[@ademoladavid3292]

I have photo related the you tube channel

[@HaseebElectronics]

wow that is great
please send it to my whatsapp [phone]
or gmail id ashraf4ta4

[@cookingengineering9299]

Check ur inbox plz