smp40n10 power mosfet

[bosse]

i have smp40n10 power mosfet can i use it in power amp

thank for reply

[quasi]

How many do you have?

Cheers

[bosse]

i have 20

[quasi]

You can build a quasi-complimentary power amplifier with DC rails of +/- 47v (at idle) maximum. You are welcome to use this circuit.

http://www.diyaudio.com/forums/showt...751#post781751

If you do, a couple of component changes need to be made so let me know and I'll work out the changes.

This circuit will give you about 90 - 100 watts RMS into 8 ohms and about 160 - 180 watts RMS into 4 ohms.

For a high quality and powerful stereo amp, the main parts you will need are;
4 FETS per amplifier board
A 300va to 400va transformer (depending on the use of your amp)
2 x 25 amp bridge rectifiers
4 x 10,000uF 63v capacitors

Other parts will depend on which circuit you select. There are a few in this forum that can be adapted.

Cheers

[bosse]

hi quasi
i look for amp on 25-30 watts range. i whant to make a multichanel amp for my home theater sytem with a relative good sound quality. your design seem to be realy realy good prob i try this for my sub. do you have a good shematic for 25-30 watts or a link.
thank you very mutch for your repply i realy apreciat this.

ps... sorry for my poor english hihi my language is french .

[quasi]

For 25-35 watts I would build a chip amp. I.e. an IC based power amp. You can make these units on small PCB and you would easily get 5 amps and power supplies into a medium sized case.

Have a look in the Chip-Amps section for a design. There would also be plenty of designs on the web.

Cheers