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Transformer designing

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mukti sharma

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can any one help me out in transformer designing???
 

help is required, if you are specific about it, it will be easy for us to help. what specification , do you want to build it or buy it, please specify

---------- Post added at 12:22 ---------- Previous post was at 12:06 ----------

**broken link removed**
Method for designing a transformer
**broken link removed**
 

To work at wich frequency ? 50/60Hz or higher than some thousands ?
It will define if you have to use Ferrite or silicium-Iron matherial.

+++
 

how about 50KHz design? 12+12V Pri and 300V Secon
 

what is your specification?
input volt
output volt
output current
frequency
 

input 12v
out put 315V @ 7A
F= 50KHz
 

Yes, I can
Click to expand...
Me too. But no specification hasn't been given yet by the original poster. People are just chatting about their favourite transformers.
 

more than 2250A from 12v is not advisable and not practical
 

more than 2250A from 12v is not advisable and not practical
Click to expand...
Possibly not. But then you should be able to imagine 185 A @ 12 V, which calculates for the example given by amjadali56...

It's of course possible to design transformers or inductors, that handle several 100 A or even some kA at several 10 kHz. But they need large bundles of litz wire or copper foil conductors. Arc welding inverters or high power SMPS are possible application fields for it. Specialized manufactures know how to handle these chalenging designs, but I won't suggest them for DIY.
 

2250A from a 12v battery is something like shorting the battery, it will be more than 2500A if consider 85% efficiency (more than 31 KVA)
 

FvM, arc welding modes generally are buck type from mains or higher DC voltages and they deliver large currents is known.
but seeking boost converter and such load , i was stunned!!
 

2250A from a 12v battery is something like shorting the battery
Click to expand...
But nobody has suggested a battery load in this range. Your calculation is wrong by a factor of ten at least.
but seeking boost converter and such load , i was stunned!!
Click to expand...
It's no problem for the transformer, just for the battery. It feasible, but not reasonable.
 

output 315V @7A means 2205VA so primary current is 2205/12= 183A consider 85% is 212A

sorry instead of using current 212A i calculated with 2205 VA in earlier post

but the current is high for a 12v battery
 

for some reason, the transformer is connected to a battery now
 

first i want to know what type transformer do u want to design,i will sure help you
 

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