Winding the transformer is the main key,I wound many transformers which none worked properly because leakage inductance or parasitic capacitances make HV spikes and oscillations on the drains of mosfets,I disassembled an inverter to see the transformer winding method, it was copper strip(full length of bobin)2+2,after that entire secondary of litz,and another primary copper strip 2+2 in paralel with the first one,it worked flawlessly in that inverter without snubbers,rectification was sonchronised with GDT with IGBT
That hammering to the windings does distroy the insulation and risk of arcing it is not a good practice,if you can’t bend the wire square maybe consider using and ETD core
@@Electronic_For_You My calculation says for 65A or 750w you need 14×1mm wire which is impossible on a single transformer. I dont want to say you are wrong but if you can, please guide me.
This is a pulse transformer rated for 1KW in some cases this thing can output 3kW and this type of transformer works on high frequency, 30-60khz so we Don't have to use thick wires, i think your calculation is wrong, this is not a 50/60hz mains transformer!
Good day Sir, on a H Bridge of power inverter, i have always mosfet 1 (high side) and mosfet 2 (low side) that burn while 4 and 3 stay ok. Please note that they burn ONLY WHEN I TURN IT OFF, when ON, all is good. When i use only 3 mosfets, none burns (1,2,3 or 2,3,4). I checked on the scope, signals are identical and voltage between gate and source are the same for low and high side. I am running out of mosfets and i would like to fix that inverter, any idea where to look at ? Thanks.
@@Electronic_For_You the voltage Comes from 3 capacitors in parallel of 150uF 450v for approx 289vdc. I checked also the deadtime, it is present everywhere...
@@Electronic_For_You Hello Sir; the issue is fixed, i found a broken ground trace going to emitter of some smd transistors. The gates were not properly discharged. THANK YOU very much for your help which guided me to repair !
Здравствуйте брат молодец йест один вопрос по трансформатор у меня Е 65 размер трансформатор я намотал первичной обмотки 90 витков 1 мм а фтаричной4 на 4 2мм подключил на IRF 3205 2х2 выходит 222 в транзистор грейитса а трансформатор аррёт что можно сделать памагите брат дайте совет пожалуйста привет из Узбекистана 😅😊😊😊❤
Hello, Do you mean you cannot get more than 222V on output? Have you tried to increase the voltage by the Feedback potentiometer? Try adjusting the frequency it may increase voltage also 👍 Let me know what happens next, Good luck with your project brother
У меня транзисторы сильно греется и трансформатор слишком громко звучит и плюс я хочу импульсный инвертор сделать чтобы можно было частота регулировать
If your transformer sounds I think it needs to be in higher frequency, transformer sounds when it's around 1-5khz it should be around 30-40khz try increasing the frequency and always use low current power source during testing like 12V 2A so something doesn't explode while testing,
If everything works, you can use pin 10 (shout down) using Ne555 to generate 200hz to on and off the output, so the transformer will work at 40khz but the output frequency will be 200hz , then it's maybe possible to stun fish maybe, I never tried it myself
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Winding the transformer is the main key,I wound many transformers which none worked properly because leakage inductance or parasitic capacitances make HV spikes and oscillations on the drains of mosfets,I disassembled an inverter to see the transformer winding method, it was copper strip(full length of bobin)2+2,after that entire secondary of litz,and another primary copper strip 2+2 in paralel with the first one,it worked flawlessly in that inverter without snubbers,rectification was sonchronised with GDT with IGBT
Thanks for information 👍
That hammering to the windings does distroy the insulation and risk of arcing it is not a good practice,if you can’t bend the wire square maybe consider using and ETD core
You are right, maybe it's better to use copper stripes instead of wires , because wires are harder to bend 👍
Powerful nice
Thanks
Have you ordered this core from AliExpress in INDIA??❤
Hello,
You can see by clicking the link in description if it's Available to buy it from your Country!
1000w means at least 83A (12V input) from the primary of the transformer, are you sure about your calculations?
1000Watts peak, 750W Continuous
12V@60Amps
@@Electronic_For_You My calculation says for 65A or 750w you need 14×1mm wire which is impossible on a single transformer. I dont want to say you are wrong but if you can, please guide me.
This is a pulse transformer rated for 1KW in some cases this thing can output 3kW and this type of transformer works on high frequency, 30-60khz so we Don't have to use thick wires, i think your calculation is wrong, this is not a 50/60hz mains transformer!
@@Electronic_For_You how 3×1mm wires can tolerate 60A?
Not 3 Its 4×1mm and each wire will handle 15amps so total 60amps
Very good 👍
Thanks
Cna you give me links for this bobin and core ? ❤
Hi,
Its in video description
Good day Sir, on a H Bridge of power inverter, i have always mosfet 1 (high side) and mosfet 2 (low side) that burn while 4 and 3 stay ok. Please note that they burn ONLY WHEN I TURN IT OFF, when ON, all is good.
When i use only 3 mosfets, none burns (1,2,3 or 2,3,4). I checked on the scope, signals are identical and voltage between gate and source are the same for low and high side. I am running out of mosfets and i would like to fix that inverter, any idea where to look at ?
Thanks.
Where you got voltage supply for the H-Bridge? Is it Isolate?
@@Electronic_For_You the voltage Comes from 3 capacitors in parallel of 150uF 450v for approx 289vdc. I checked also the deadtime, it is present everywhere...
I mean for driving the IGBTS!
Is it from 12V input? Or isolated?
@@Electronic_For_You Hello Sir; the issue is fixed, i found a broken ground trace going to emitter of some smd transistors. The gates were not properly discharged.
THANK YOU very much for your help which guided me to repair !
Good to hear that your problem is solved !
You are welcome!
Hi, what is the transformer rating and frequency? And how that frequency converted to 50/60Hz? Hope you answer in a little detail. Thank you.
Hello,
There is part -1 -2 -3 I showed everything
I think, 12v input 2 turn is enough
3 turns used to decrease Idle current consumption 👍
Ur thinking! What's about formula
It depend on the core Ae
Kuch log ise 3kw tak power lete h uske liye kya modificatiin hoge sir guide me
You have to wind for 48V
Can you leave the schematic also?
Check the 3rd link on pinned comment
I also need the circuit diagram.
There is also a diy version
Tu estas pelando el alambre dándole con la pinza de hierro
its ok, double insulated wire 👍
12v to 220v inverter 1kW circuit diagram please sir.
I already did it in one of the previous videos, you can watch 👍
Please give the schematic diagram.
Click the 3rd link in first comment to see diy version
1KW @ 12V = 83.3A you are dreaming!!!
It is also possible to use 24V 👍
Здравствуйте брат молодец йест один вопрос по трансформатор у меня Е 65 размер трансформатор я намотал первичной обмотки 90 витков 1 мм а фтаричной4 на 4 2мм подключил на IRF 3205 2х2 выходит 222 в транзистор грейитса а трансформатор аррёт что можно сделать памагите брат дайте совет пожалуйста привет из Узбекистана 😅😊😊😊❤
Hello,
Do you mean you cannot get more than 222V on output? Have you tried to increase the voltage by the Feedback potentiometer?
Try adjusting the frequency it may increase voltage also 👍
Let me know what happens next, Good luck with your project brother
У меня транзисторы сильно греется и трансформатор слишком громко звучит и плюс я хочу импульсный инвертор сделать чтобы можно было частота регулировать
Я думаю мне 220 вольт хватит только частотами можно было регулировать и я хочу собрать удочку надеюсь я вам правильно объяснил 😀👍❤️
If your transformer sounds I think it needs to be in higher frequency, transformer sounds when it's around 1-5khz it should be around 30-40khz try increasing the frequency and always use low current power source during testing like 12V 2A so something doesn't explode while testing,
If everything works, you can use pin 10 (shout down) using Ne555 to generate 200hz to on and off the output, so the transformer will work at 40khz but the output frequency will be 200hz , then it's maybe possible to stun fish maybe, I never tried it myself