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’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.
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.
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
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.
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
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...
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
hahahhahahhahhahhah the fourth hand was hidden as well. i am thankful for our deep observation, this was my subordinate learning the troubleshooting techniques
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
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
AS. please explain that why positive voltage to collector of the igbt and negative to the emitter? I mean we generally see the source connected to the emitter side of the transistors at the circuits. So it is supposed to be connected both positive and negative to the emitter side. but here this is different type connection.
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
I have a welder machine which there is not output voltage. I tested 2 IGBT = Ok, 4 Diodes = Ok, 3 Polyester caps ok, 2 with 4.7 uF and 0.02 Esr and other 400v with 4.7uF and 0.03 Esr. Bridge rectifier is Ok. But, i haven't square waves in gate of 2 igbts. Thre wave it's similar to a part of senoid. Is the module the problem ? I haven't 24v in the line 24v. I applied 24v and it starts to show 25.5v. The cooler try to rotate. But don't rotate. I pit other and it spins swiftly. I also heard a noisy sound probably in 24v transformer and relay is not arming. What you experience could guide me now sir ?
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
Sir g mere pas ikk igbt machine hai uss ki low voltage 24volt ban rahe hai set ok hai jab fan ki wire lagate hai set off ho jata hai kya problem hai please help me
Hello dear Thank you for this informative video One question the flyback transformer next to the igbt 22 252525 How can we test it with ohm meter Pin1 and pin 2
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?
hello welding machine yeswelder 135 ampere 110 voltage but my region is 220 voltage How can I convert this machine to 220 voltage? Which elements do I need to change?
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)
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
Excelent video! but what about if I have arround 90V-100V at output of the welding machine? That means arise of capacitance and too low impedance or any other problem? Thank you
if you have excessive voltage that is due to pwm control card. when it's duty cycle will increase, then the output voltage will increase. it might be duw to the feedback network (operational amplifier connected with output current sense shunt resistor)
What happens when i haven't output power (0v) ? I tested all welder machinr (IGBT = Ok, poliester cap 250v with 4.6 uF and 0.02 esr 2 caps with similar measurement = ok ,4 diodes for high current withou shorts, 2 mains capas got 297V each, pulses which comes to thr IGBT is not square. Any help ?
Sir, single board ki machine hai isme output terminal pe 110 dc volt aa rha hai jiske wajah se one touch OC ho jata hai, 50, 60 volt hone se welding thik hota hai. Is 110 volt ko kaise kam kare ye kyon ho rha pls bataye. Thankyou
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)
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
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
بہترین معلومات سدا خوش رہو
Very 100% educational videos. Thank you.
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’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.
I love this ckannel and its content,Sir you are actually taking my passion in electronics to the next level,God continue blessing yoy
Nice share dear friend , i like , nice work and video , complete watch
Thank you so much 🙂
My best engineer...👍
My brother is best engineer and a great human being. Thanks for sharing
انا من المغرب اعجبني هدا الشرح الممتاز تحية لك
best regards and special thanks
This video is very informative i learn a lot
Your always aknowleged properly thanks habbees
You are so welcome
What else can I say more than expressing how well you explain this topic?
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
Asalm aliykum sir so nice
Thanks and welcome
Mashallah, salam from indonesia 🎉🎉
wa alaikum salaam dear brother
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.
Thanks a lot. It's very Educative.
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
Very informative video thanks for sharing 👍👌
thank you very much sir...very clear explanation,easy to understand sir...god bless.
You are most welcome
Walikum Salam! Great StaY Blessed 😇🇨🇳🇵🇰 Still watching 👍🏻
Sangat bermanfaat, salam support dan sukses selalu
Lk 178 wonderful sharing
Ads was too long😊
Keep it up
Doing good jon
Thank you so much 🙂
Great presentations.
#vedikworld
MashaAllah haseeb bhai u r amazing engineer easy explained
Stay blessed always 🙏
Thanks you so much sir ,,,, i like this videos❤️❤️❤️❤️❤️
Most welcome
Mantap Kak.....
Haseeb Electronics
Good tiching karte hai 👍👌👍👍👌👌👍
special thanks
big thumbs up thanks for sharing stay blessed and happy good morning have a nice day
Gracias saludos desde South America , 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
nice tips
nice up loud thanks for sharing like
Thanks for visiting
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
Simply excellent information!!! 🧡🧡
best regards
Thanks for shearing good knowledge my brother I watch and like video please thanks
So nice of you. stay blessed
nice work dear bro thanks for sharing. stay blessed
It was a very nice work. I watched it with pleasure.
I left my gift ,
Kindly make a full video on practical inverter full bridge design and construction.
Thank you
Very clear explanation. Thanks for teaching me sir
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...
Thank you for the lesson
Always welcome
love&like...you teach schematic diagram inverter
best regards and special thanks
MashAllah amazing content and appreciate you ❤️❤️
Allah Bless you Ameen🌺💕🌺💕🌺
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
Excellent information on welding machine
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
Thank you so much for taking the time to make these videos 👍🙏
My pleasure!
please accept my best regards
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
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
Very helpful video👍👍👍 like👌👍
Many many thanks dear sister
very well explained ! TY
You are welcome!
Keep going nice 100 like
Very good engineer
Very useful information Sir Thanks for your effort
Mashallah very nice sharing 👍👍
Good work my brother God bless you 🙏 💯
Good effort brother
So nice of you
Lk 12 walekum Salaam bhai
Very well explained 👍😊
Thanks for the video.. you're the best ☺️☺️.. please what is the amperage of the rectifier?
Can we use voltage drop method at high frequency to test non polar capacitors??
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
AS. please explain that why positive voltage to collector of the igbt and negative to the emitter? I mean we generally see the source connected to the emitter side of the transistors at the circuits. So it is supposed to be connected both positive and negative to the emitter side. but here this is different type connection.
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
Always amazing 😍 give you 👍 good luck my brother 👊
I have a welder machine which there is not output voltage. I tested 2 IGBT = Ok, 4 Diodes = Ok, 3 Polyester caps ok, 2 with 4.7 uF and 0.02 Esr and other 400v with 4.7uF and 0.03 Esr. Bridge rectifier is Ok. But, i haven't square waves in gate of 2 igbts. Thre wave it's similar to a part of senoid. Is the module the problem ? I haven't 24v in the line 24v. I applied 24v and it starts to show 25.5v. The cooler try to rotate. But don't rotate. I pit other and it spins swiftly. I also heard a noisy sound probably in 24v transformer and relay is not arming. What you experience could guide me now sir ?
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
Where do we adjust the output voltage of the inverter? the oscillator adjustment is only for the output current adjustment?
Great presentation with very detailed explaination. Thanks brother for sharing, keep it up...
ممنون از شما
Sir g mere pas ikk igbt machine hai uss ki low voltage 24volt ban rahe hai set ok hai jab fan ki wire lagate hai set off ho jata hai kya problem hai please help me
السلام عليكم ما شاء الله بتوفيق دائما يارب أخي
Excellent Work My Dear Brother Liked Very Mcuh # 40+40
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
Hello dear Thank you for this informative video
One question the flyback transformer next to the igbt
22 252525
How can we test it with ohm meter
Pin1 and pin 2
Thank you so much for sharing❤️❤️
You are so welcome!
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?
hello welding machine yeswelder 135 ampere 110 voltage but my region is 220 voltage How can I convert this machine to 220 voltage? Which elements do I need to change?
Can we replace non trench planar field stop igbt with a trench gate field stop igbt
جزاك الله خيرا
بارك الله فيك
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
Nice Friend 👍😉
How to measure the voltage at the IGBT gate, should it be 1.6 V? Thanks in advance.
please check video number 549 and 550
Excelent video! but what about if I have arround 90V-100V at output of the welding machine? That means arise of capacitance and too low impedance or any other problem? Thank you
if you have excessive voltage
that is due to pwm control card. when it's duty cycle will increase, then the output voltage will increase.
it might be duw to the feedback network (operational amplifier connected with output current sense shunt resistor)
What happens when i haven't output power (0v) ? I tested all welder machinr (IGBT = Ok, poliester cap 250v with 4.6 uF and 0.02 esr 2 caps with similar measurement = ok ,4 diodes for high current withou shorts, 2 mains capas got 297V each, pulses which comes to thr IGBT is not square. Any help ?
Sir how to identify type of igbt used in welding machine , that it has a built in diode Or without diode, when they blast.. Please help..
Sir, single board ki machine hai isme output terminal pe 110 dc volt aa rha hai jiske wajah se one touch OC ho jata hai, 50, 60 volt hone se welding thik hota hai. Is 110 volt ko kaise kam kare ye kyon ho rha pls bataye. Thankyou
Hi engineer, I have a problem of not knowing how to differentiate bjts, igbts and mosfets physically from one another
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)
My igbt is not displaying and also not working when I opened I so one varistor blown what would be the problem
varistor can damage any time because it is a protection for high voltage spikes
Can you please explain how pulse forming network works..
sure a detailed series is upcoming very soon by this week
thank you master....
You are welcome
Nice sharing👌👌
Superb informative video
Hello sir, pls am having problem with inverter welding machine, d amps is not increase pls help me out sir.
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