#299 Single Board Inverter IGBT Welder Machine - Function & Troubleshooting

First lk 👍 w salam
great work bro
Allah bless you

Merhaba bende zx7250 mini welding Var kartın pozitif çıkışına tetikleme role bağlamak istiyorum( starter relay )
Nereye bağlamam gerekir

Selam aleyküm , I have a zx7250 mini welding and I want to connect a trigger relay to the positive output of the card (starter relay).
Where should I connect it?

Plz help near to igbt 2 resistance 22hom and 1 doid volu of doid

hi mr.haseeb :can you support persian language please ❤

Can you please explain how pulse forming network works..

Aapko bagwan lambhi umr de apke samajhane ka trika grate h sabhi video apki sabji video dekhi h mene

Sir 4 igbt driver

Please put the romanian subtitle thank you

Very clear explanation. Thanks for teaching me sir

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

جزاك الله خيرا

Can we use voltage drop method at high frequency to test non polar capacitors??

I love this ckannel and its content,Sir you are actually taking my passion in electronics to the next level,God continue blessing yoy

Thanks a lot. It's very Educative.

Sir repairing course the next part videos some not continued explanations missing smp driving circuits for relay activating please

Good effort brother

Sangat bermanfaat, salam support dan sukses selalu

Can we varry the out put voltage of welding machine?

Can we replace non trench planar field stop igbt with a trench gate field stop igbt

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

Did u connected the bridge rectifier to direct ac current

Hello sir, pls am having problem with inverter welding machine, d amps is not increase pls help me out sir.

-What is the advantage of a double board vs single board?
-Does the double board design give better duty cycle?
I want to buy a welding machine from a reputable manufacturer here in Germany but they offer two versions of the same machine: a cheaper single board 6 diode one. And a more expensive double board 12 diode one!
Both machines output 200A!
Which should I choose? Money isn't a problem to me.

What else can I say more than expressing how well you explain this topic?

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?

Really good

Mashallah, salam from indonesia 🎉🎉

very well explained ! TY

wear gloves when you make live test of the board !!!
if you imagine that, when you touch the board by mistake, you will lift up your arms immediately, you are deeply wrong !!!!

Sir
Talk to Hindhi

Kindly make a full video on practical inverter full bridge design and construction.
Thank you

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)

where can i buy this board?

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 ?

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 ?

How to measure the voltage at the IGBT gate, should it be 1.6 V? Thanks in advance.

Hello friend, would you help me, what is the code of this 7-pin ci, thank you

I need a help ...
How can I increase the output dc voltage of igbt based inverter weldeing machine which is near 35 v without load to 55 v for load at 50amps?

I want to hack this inverter weldeing machine as Ac to Dc rectifier .
Plz guid me sir ..

1.Shud i increase the sec. turns of transformer ?
2 .shud i change the oscillation frequency

Very good engineer

You know I really have a big question for you here goes why capacitor 0.1nf capacitor with a 350k potentiometer cause the a micro pwm Ic such as tl494 output signal to flip up and down causing mosfet to crash together in inverting should not the two signal behavior one up and other down but when I use a 200k potentiometer I have to search for that one capacitor valve that match the Ic puch pull so the signal stay high on the other signal low but some capacitor of same valve cause the high signal to up and down at the same time but I have to try and try till I find that one capacitor and resistor that fit the Ic so the signal stay calmly up and the other low

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

Simply excellent information!!! 🧡🧡

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

ممنون از شما

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

walaikum salam

According to the the multimeter checking method all the IGBTs of my welding machine are short. But the machine is working absolutely fine. Hows it possible ?

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

Is the temp sensor shorted for normal operation?