How to Make Simple Audio Amplifier With Mosfet

29,903

76

4

Introduction: How to Make Simple Audio Amplifier With Mosfet

About: Electronics Enthusiast and a Software Engineer

An Audio amplifier is a device , which is a capable of strength the week signals to drive the speaker.

In this Instructable I will instruct you to make your own simple audio amplifier using MOSFET and less number of components. The Transistor I used is IRFZ44 which is a Mosfet.

For more information visit Electronics Projects Hub

Step 1: Components Required

IRFZ44 Transistor - 1 [Banggood]

Speaker - 1 [Banggood]

100uF Capacitors - 1 [Banggood]

1K Resistors - 1 [Banggood]

Bread Board - 1 [Banggood]

3.5mm Audio Jack - 1 [Banggood]

Step 2: Watch Video First!

The video gives you all the information you need to build your own simple audio amplifier with MOSFET.

During the next steps however I will present you some additional information to make the project even more simpler.

Step 3: Circuiting

Here you can find the circuit on breadboard.

You can see my breadboard traces and it is easy to understand while making. Place all the components on the breadboard according to schematic.

Circuit is attached , you can download.

Step 4: You Made It !

That's all guys you made it.

Feel free to comment.

For more projects and tutorials subscribe my youtube channel [Click Here]

Visit my website Electronics Projects Hub

Invention Challenge 2017

Participated in the
Invention Challenge 2017

Makerspace Contest 2017

Participated in the
Makerspace Contest 2017

1 Person Made This Project!

Recommendations

  • Game Design: Student Design Challenge

    Game Design: Student Design Challenge
  • Block Code Contest

    Block Code Contest
  • Baking Contest

    Baking Contest

4 Comments

0
davelavallee
davelavallee

2 years ago

The schematic shows a 5Vdc source, but the video shows a 9v battery clip, what should the voltage be?
Also, are half-way components sufficient?
Thanks in advance!

0
TeoT18
TeoT18

5 years ago

I've simulated it in LTspice.

Distortion: 2.2% in all frequencies (20 to 20kHz) @ 1Vrms input

Power output: 800mW @ 4 ohm - 1Vrms input

Only a problem: continuous +850mV and 180mW power output without input signal in the speaker.

0
jon.chase.3348
jon.chase.3348

5 years ago

I recently came into possession of a pair of 8 ohm 3-5 watt speakers. and I have two amps wired in parallel for stereo sound, and work extremely well

temp_171350275.jpg
0
jwzumwalt
jwzumwalt

5 years ago

The IRFZ44 is rated up to 40W. It would be interesting to see someone with the math know how to calculate the watts of this project.