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Industrial electronics

12a220v power inverter burns

electroemi
hace 6 años
hace 6 años
Hi, I wanted to know if you can help me. I have an inverter from 12v to 220v 2000w which had burned FHF20N50 I replaced it with a 20N60 it went well but it was burned again what could it be? I don't want to reassemble it so it won't burn again, will the replacement be fine?
Ennio Montenegro.
hace 6 años

Is he the only one who has or has more in parallel ... ???
How much power is the connected load .. ???

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Ennio Montenegro.
hace 6 años

It has a fuse .. ??? How much current is
.. ??

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electroemi
hace 6 años

If it has another one next to it, it is healthy, 20N50 has a fuse at the input of the positive 12v 3 fuses of 30amp. I found a capacitor of 0.22uf x 50v recently devalued. I will change it for 22uf 50v is the same I think?

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Ennio Montenegro.
hace 6 años

The 22uf capacitor is 100 times more capacity than the 0.22uf.

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Ennio Montenegro.
hace 6 años

The 3 30A fuses are in parallel .. ???

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electroemi
hace 6 años

Because the capacitor with the caoacimeter marks me 0.4 uf and is 5.800 as if the fuses are bad, they run in parallel

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Ennio Montenegro.
hace 6 años
hace 6 años
How much charge are you connecting .. ??? The MOSFET 20N50 is 20A. If you have 2 in parallel, it is impossible for the power to be 2000W. That's why I asked you how much power you are connecting. Because if each MOSFET is for 20A, with 2, it would have a maximum power of 480W. If protected by a 30A fuse, it should not exceed 350W. To have a power of 2000W, it must consume in 12V no less than 166A and should have a minimum of 8 MOSFET of 20A.
electroemi
hace 6 años

If sorry on one side has 4 20N50 and 2 MUR2060FCT. The consumer can not tell me that the client tells me that I had a TV connected to a lamp and 2 cell phone chargers but if I had more things and he doesn't tell me I would give it to him on foot if I tried it for a few days and see if it heats up as I do?

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Ennio Montenegro.
hace 6 años

Indicate the brand and model to know the real power it could have. Although Chinese teams may be marked with a power and hopefully it can work with half of it.
It is impossible to know the amount of equipment you are connecting.
If he was already burned on one occasion with a power that should not exceed 300W, and he burned again, it is because he is perhaps connecting what equipment.
Ask him how much is the capacity of the battery or batteries and how long does it last. But if you connect it to a running vehicle, it cannot be deduced.

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neybero
neybero
46
hace 6 años
hace 6 años
While there is another devalued component there will be problems. It is not enough to change the transistors if the origin of the damage remains latent.

¿Conoces una solución?

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