PUSH PULL AMPLIFIER NEEDED (MOSFET)

Dear All

I need your help on the following issue.

I have to construct a Class AB - push pull amplifier with MOSFET
Amplifier should be able to provide 21Watt output power (10.5
Watt RMS) at 8 ohm load (i.e speaker) .
The circuit suppose to be able to amplify input signal from 1 Vrms at
a range of 10 Hz to 40 KHz .

Requirements
1) Vdc should not exceed 50 Volts
2) Dc Current not to exceed 2 Amperes.
3) Construction of Amplifier should be with MOSFET , even if we can find
easier ways!


Your opinion would be reall help for me .

Regards

George Vasiliou
GREECE
email :

 

Homework assignment?

 

As a matter of fact yes , School Exercise .
Life of Working sutdents is more complicated.
Analogue Electronics lesson , in a PC oriented class....

Regards


george Vasiliou

 

You might try a couple of the following links. Examples and explanations are
shown there.

This one isn't quite what you want, but he talks about some of the design
considerations: http://sound.westhost.com/project83.htm

This one is a bit over-powered for your needs, and he doesn't give all the
details, but he covers a lot of good theory:
http://sound.westhost.com/project101.htm