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DIY 10 watt amplifier and loud speaker

VIEWS: 74 PAGES: 12

My instructables for Pocket Size Contest ^_^

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Pocket 10 watt amplifier
by Ghild.Zero on November 13, 2011


Table of Contents

Pocket 10 watt amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   1

    Intro: Pocket 10 watt amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        2

    Step 1: Build Loudspeaker Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .            2

    Step 2: Core Part - Tda2003 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .          5

    Step 3: The Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    6

    Step 4: Build the Circuit part I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       7

    Step 5: Build the Circuit part II . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      8

    Step 6: Place whole circuit to box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .           9

    Step 7: Finally Done ^_^ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11




http://www.instructables.com/id/10-watt-amplifier-and-LoudSpeaker/
           Author:Ghild.Zero Facebook Profile
           Lets learn together !!!




Intro: Pocket 10 watt amplifier
OK , Hi all ..
This my First Project in Instructables ^_^
I am from Indonesia , Here was held 26th SEA Games 2011... GO Indonesia !!!

=============================================================

Ok check this out ,
This is 10 watt amplifier and LoudSpeaker,
Let me tell you how I make this thing

Part List :
# acrylic
# Loudspeaker
# PCB
# Some Wire
# 9Volt battery Connection
# Unbalance Jack Female
# Power Jack Female
# Potensiometer
# Capacitor ( 2.2uF ; 470uF ; 100uF ; 0.1uF ; 1000uF )
# Resistor ( 220R ; 2.2R ; 1R )
# IC Tda2003
# Heatsink




Step 1: Build Loudspeaker Box
Tools I use :
# Saw
# Drill machine
# Melting Glue

I think the result is not bad ,
...
...
...
Ok its bad but not really , LOL




http://www.instructables.com/id/10-watt-amplifier-and-LoudSpeaker/
http://www.instructables.com/id/10-watt-amplifier-and-LoudSpeaker/
http://www.instructables.com/id/10-watt-amplifier-and-LoudSpeaker/
Step 2: Core Part - Tda2003
The TDA2003 is a cheap amplifier that is designed to run on single rail power supplies. It has many applications (including in car systems if you do not need to show off
down the high street with your subwoofers!) and is protected against short circuits in almost every way you would think them possible.




http://www.instructables.com/id/10-watt-amplifier-and-LoudSpeaker/
Step 3: The Circuit
This amplifier is based on the typical application in the ST Microelectronics datasheet. The performance from this circuit is very satisfactory. The sheet contains data for
typical noise and distortion statistics, I cannot confirm these statistics because I don't have the equipment, but my ears tell me that the sound is good and with sensitive
speakers, this amp will show some power.

Resistor are recommended as 1% metal film, but as the picture of my prototype shows below, 5% resistors are capable (the cream coloured ones), except for the critical
Rx resistor, which should be 1%. R2 and R3 are low value resistors and (unlike me) you should try and get close tolerance resistors for these. Capacitors should be
electrolytic above 1uF and rated at 25V minimum. They must all be connected the right way round or failure and possibly injury will follow when the amp is powered up.

Rx and Cx must be worked out using the data sheets mathematical calculations. If in doubt however, I used 39 ohm for Rx and 33nF for Cx. Other non-electrolytic
capacitors can be any type available. I used polyester layer capacitors because they have a closer tolerance (i.e. 5%) than most other capacitors.

A heatsink is important. The one shown in my prototype is actually too small and you should obtain something bigger for improved operation (unless your working with
small voltages).

source : http://www.e-dan.co.uk/electronics/TDA2003.html

Here is the Design and Layout I use
http://www.ziddu.com/download/17590310/10wattamplifier.rar.html




  Image Notes
  1. I not use Rx and Cx




http://www.instructables.com/id/10-watt-amplifier-and-LoudSpeaker/
Step 4: Build the Circuit part I
tools I use :
# Acetone
# saw
# FeritCloride
# mini drill

For the Layout :
I think you can make better than me according to your needs ^_^
but if necessary I will upload it




                                                                     Image Notes
                                                                     1. Ooooppp !!!
                                                                     2. I use a wire as marker
                                                                     3. I use a wire as marker




  Image Notes
  1. Finally all line is covered by ink
  2. Finally all line is covered by ink




http://www.instructables.com/id/10-watt-amplifier-and-LoudSpeaker/
                                                                     Image Notes
                                                                     1. I use Acetone to clean the ink


Step 5: Build the Circuit part II
Place all components on the circuit

Tools I use :
# Solder Iron
# Tin
# Helping Hand Soldering ( I make this myself )
# Melting Glue




http://www.instructables.com/id/10-watt-amplifier-and-LoudSpeaker/
Step 6: Place whole circuit to box
Hole on the box for :
# for Loudspeaker (output)
# for 9 Volt Battery (input)
# for Unbalance Jack Audio (Input)
# for Potensiometer (volume control)
# for 12 Volt from Power Jack (input)

Tools I use :
# saw
# Melting Glue
# Drill Machine




http://www.instructables.com/id/10-watt-amplifier-and-LoudSpeaker/
http://www.instructables.com/id/10-watt-amplifier-and-LoudSpeaker/
Step 7: Finally Done ^_^
okay just stay together all parts !!!

this amplifier use two way power :
1. 9volt connection for 9volt baterry ( low Quality Output )
2. Power Jack for 12 volt - 18 volt input ( for better Quality Output )

OK , hopefully this can inspire you

Thank You




  Image Notes
  1. this hole for 12 volt adaptor




http://www.instructables.com/id/10-watt-amplifier-and-LoudSpeaker/
http://www.instructables.com/id/10-watt-amplifier-and-LoudSpeaker/

								
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