Amplify an analog signal up to 24V and 4A

[djnik1362]

hi
I must design a circuit that have an low power DC input from 0 to 10V and must produce
an output from 0 to 24V with 4A load capacity.

I need your guide for circuits and proper electronic parts.

I need to know if designing PCB of such a circuit have special considerations.

Main power source is +24 V DC.

Thanks for your support.

 

[mtwieg]

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.

What kind of bandwidth do you need on the output?

 

[djnik1362]

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.

What kind of bandwidth do you need on the output?

Thanks .
DC .

 

[jeffrey samuel]

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

 

[djnik1362]

Is this a good idea to use a power op-amp such OPA548 ?
With Single supply at +24V i can't get +24V output from op-amp .

Thanks for your support.

 

[djnik1362]

No Expert ?!

 

[jeffrey samuel]

No op amp is ideal and so you can't get 24V from the 24V you supplied There are losses Though theoretically this is very much possible

 

[mtwieg]

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).