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efficiency Boost vs Flyback

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azadfalah

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Hello friends


efficiency Boost vs Flyback
Regardless of isolation , Which is more efficiency ?

Vin = 24V
Vout = 400v
Iout = 10A


Thank You,
 

Hi,

4000W...as flyback? Are you sure?
170A at least at the 24V side....

Klaus
 
This depends a lot on the boost ratio. High ratio simple
boost converters suffer a lot efficiency-wise when you
arelooking for high step-up; the flyback lets you take
voltage gain by turns ratio and relieves some of that.
But at the cost of complexity etc.
 
transformer based ckt is by far the most practical and efficacious here...
 
It was wrong. I mean full bridge converter
 

You originally asked about boost vs flyback. Now
what, bridge vs both?

I'd bet that somewhere somebody has compiled a
list of best-in-class efficiencies for every switcher
topology known.

But how useful that is, in affordable-components
reality, is a whole 'nother question.

I think given the simplicity of the question, finding
a proven design with an acceptable efficiency -
"which is best" being irrelevant if you can't handle
the development - is where you ought to spend
your inquiries.
 

it sounds like you need several full bridges in parallel because of the high current
 

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