hello
how are you all
i want an efficient design of 8 watt audio amplifier.
kindly provide me design file in proteus so i can make it on pcb.
also it should be having noise reduction functionality.

 

Look in the The Completed Projects Collection . You will find several designs complete with PCB layouts.

 

.i saw a lot of circuits on internet using LM383 and TDA2003. As it is my university project and LM383 is a built in class B amplifier. i don't want to use ic's which are made for these special purposes. i need a design of 8 watt audio amplifier with less noise using MOSFET'S or BJT'S . kindly help me with an efficient design.
you can mail me at
<SNIP>

 

Are you getting a University education in "How to get other people to design circuits for you"?

 

for the first time you do anything you will always need some guidance or a teacher @ mr #12

 

I think the teacher is included in the university, and is supposed to guide you. However, you can post a schematic of what you have accomplished and describe the points you are having difficulty with. That will probably get you some help.

 

o.k i post the design wait

 

This from PM...

sir there was no project there regarding audio amplifier

to which I respond...

Project: "Minimus" audio amplifier

Project: "Taurus" hi-end audio amplifier (45W + 45W)

"Lynx" 2-way speakers

Project: "Cygnus" 2-way speakers

Project: "Quatour" multimedia active speakers

Project: Portable active speakers (2 X 0.3W)

All of these are in that forum, most by the same person. Reading is your friend.

 

Hello,

The links in these pages from the EDUCYPEDIA will give you a lot of information:
Amplfier theory
Amplfier classes
Audio amplfiers
Audio - general

Bertus

 

Sir, there was no project there regarding an audio amplifier.

If you just click the given link for the Completed Projects Collection, you get the default 2 weeks depth (no amplifier circuits in that time). To see all history you have to change the setting to "from the beginning". You can also do an advanced search using the keyword "amplifier" and the forum "Completed Projects Collection".

"Minimus" and "Quatour" seem to be in the right wattage zone but both use specialty audio amplifier ICs.

 

thanks kj6ead actually i want to design it with differential input stage and i think class ab amplifier output stage would be good. but i don't know how to set the different parameters of the circuit

 

Since your teacher is not teaching you then you must learn about audio power amplifier circuits yourself with tutorials or books.
On my reply to your PM I recommended www.redcircuits.com and Rod Elliot's site where you can simply copy the amplifiers. Didn't you look at them?
When you copy circuits then you learn nothing and might get into trouble with your teacher.

 

Trouble with the teacher? How about trouble with the rest of your life as any kind of electronics worker?