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It is what a sadist does!I don't know what FLAYBACK is. I think you mean Flyback whick is for making very high voltage at low current.
A boost converter will use 30A from 12V.
Boost is a specialized form of a flyback. You can get more power at modest voltage increases from a boost for a given magnetic since the inductor only has to supply the difference between the input and output voltage.I need about 300W 24V-12A DC From 12V DC
Which topology can provide me upper power in output? BOOST or Flayback
I don't know what FLAYBACK is. I think you mean Flyback whick is for making very high voltage at low current.
A boost converter will use 30A from 12V.
what are you trying to power and where are you using it?
Boost has less functionality than flyback so physics dictates that boost is better at what it does. In fact, this is the case. Components in a boost circuit have less peak voltages and current stresses on them than flyback so can use cheaper components with lower ratings and have less noise. They can also boost by a larger amount than flyback (but can't step down). They are also capable of higher power because of all the aformentioned points.
So usually, if you don't need the features of flyback (isolation, or multiple tapped outputs from the transformer, step-down and step-up) you go with the boost. Boost does have the major disadvantage of inverted voltage though. A SEPIC converter is another kind. It's can do everything a flyback converter can do (you can think of the circuit it like a buck-boost converter combined into one circuit, or a variation on the flyback converter), but with lower noise and peak stresses with no voltage inversion like the boost, but no isolation like the flyback. It's also harder to figure out how it works.
Boost has less functionality than flyback so physics dictates that boost is better at what it does. In fact, this is the case. Components in a boost circuit have less peak voltages and current stresses on them than flyback so can use cheaper components with lower ratings and have less noise. They can also boost by a larger amount than flyback (but can't step down). They are also capable of higher power because of all the aformentioned points.
So usually, if you don't need the features of flyback (isolation, or multiple tapped outputs from the transformer, step-down and step-up) you go with the boost. Boost does have the major disadvantage of inverted voltage though. A SEPIC converter is another kind. It's can do everything a flyback converter can do (you can think of the circuit it like a buck-boost converter combined into one circuit, or a variation on the flyback converter), but with lower noise and peak stresses with no voltage inversion like the boost, but no isolation like the flyback. It's also harder to figure out how it works.
A boost does not invert the voltage. A buck-boost has two varieties - inverting & non-inverting. The application the OP stated would lend itself to a boost. A boost & a SEPIC have quiet inputs but noisy outputs. A SEPIC has the same problems as a buck-boost, more parts and lower efficiency. The SEPIC's ability to step down as well as step up has a price. The inductors carry more per cycle energy. Also, a SEPIC is slower than a buck-boost, and much slower than a boost.
Just a summary of the tradeoffs involved with different topologies.
Actually flyback really only refers to when you take the energy.Oh, yeah that's right. BOost doesn't invert voltage. The buck-boost does (the unisolated version of the flyback).