To get decent power efficiency you'll want to build a class D (ie class S) amplifier, though you will have some ripple on the output. A linear amplifier would probably be easier to design, but would be much less efficient.
To get decent power efficiency you'll want to build a class D (ie class S) amplifier, though you will have some ripple on the output. A linear amplifier would probably be easier to design, but would be much less efficient.
Try going for multi stage amplifiers Mostly a CE amplifier followed by an emitter follower play with the resistors and you can get 4 A current in the op
main power source Can't get your point here Why not eloborating here a little
Even a class D amp can't get all the way up to 24V out from a 24V supply, due to resistance. If you want to go all the way to the supply rail (or beyond it) then you need a much more complex amplifier topology (or a step up DC-DC converter).