This document summarizes a student project to build an audio amplifier circuit using the IC TBA810. It includes the course outcomes, introduces audio amplifiers, lists the components, shows the pin configuration and circuit diagram, explains how the circuit works, discusses advantages and disadvantages, and lists applications. The student aims to build and test the performance of the audio amplifier circuit to understand its concepts and operation.

1. NAGPUR INSTITUTE OF TECHNOLOGY
GUIDED BY:-
Mr.HARSHAL NIKAM
NIT POLYTECHNIC
MICRO PROJECT OF APPLIED ELECTRONICS
Presented By :-
Ashish Sadavarti

2. AUDIO AMPLIFIER
USING IC 810 OR
EQUIVALENT

3. CONTENTS
 COURSE OUTCOMES
 INTRODUCTION
 COMPONET LIST
 PIN CONFIGURATION
 CIRCUIT DIAGRAM
 WORKING OF CIRCUIT
 ADVANTAGES & DISADVANTAGES
 APPLICATION

4. COURSE OUTCOMES
Build test the performance of audio amplifier
To apply the knowledge of making the audio amplifier by using
IC TBA810
We understand the concept of audio amplifier
We understand the circuit of audio amplifier for low as well as
high frequency
Analysing the audio amplifier by testing the experience

5. INTRODUCTION
It is a audio power amplifier or (power amplifier) is an electronic
amplifier that amplifier low power electronic audio signal radio
receiver or electric guitar pick up to the level that is high
enough for driving loud speaker , head phone , audio power
amplifier are found in all manner of sound systems including
sound public address & home audio system & musical
instrument amplifier like guitar amplifier it is the final electronic
stage in atypical audio playback chain before the signal is sent
to the loudspeaker.

6. Component list
Component specification Quantity
IC TBA810 1
PCB - 1
Resistor 100Ω,2.2Ω,150kΩ, 5
Capacitor 100uF,1000uF,470uF,
104pF,470pF,502pF
9
Potentiometer 10K
Adaptor 1

7. PIN CONFIGURATION

8. CIRCUIT DIAGRAM

9. WORKING & CONSTRUCTION
Audio signal input given to the non inverting pin 8 of TBA 810 IC through
volume control variable resistor VR1 and output is taken out from pin 12 and
other pins are filled up with Resistor and capacitor components.
Tabs both side in IC are grounded and IC can be covered with heat sink,
After completing the construction of circuit choose power supply depends on
required output power.
Thus this circuit gives 1 watt output for 4 to 6V and 7 watt output for 16V
bias, and it produce better output from 40Hz to 20KHz (-3dB) frequency
input.

10. ADVANTAGE & DISADVANTAGES
ADVANTAGES
 Linear behaviour
 Hi-FI quality sound
 Simpler design
 Still pretty simple & basic
DISADVANTAGES
 Power dissipation (which generates
heat & required large heatsinks)
 Typically more expensive than single
supply amplifier
 The design tends to be much more
complex
 Low power efficiency have an average
efficiency of less than 50%

11. APPLICATION
 Audio amplifier uses car AUX input, cell phone amplifier ,DVD players,
earbuds , GPS audio, Headphone amplifier, hearing amplifier ,iPads
laptops, motorcycle audio,MP3 players, PC audio, Race Scanners, satellite
Ratio,tablet travel amplifier, TV listening ,wireless headphone etc.
 Important applications include public address system, theatrical & concert
sound reinforcement , & domestic sound systems such as a stereo or
home-theatre system instrument amplifiers including guitar amplifier.

12. Actual Circuit

13. Thank You!