IRFZ44N Mosfet Amplifier

Introduction: IRFZ44N Mosfet Amplifier

About: Share diy projects to those who have the same hobby with me

Hii friend,

Today I am going to make an audio amplifier using MOSFET IRFZ44N.This amplifier circuit will give good sound.

Let's get started,

Step 1: Take All Components As Shown Below

Components required -

(1.) MOSFET - IRFZ44N x1

(2.) aux cable x1

(3.) Speaker

(4.) Battery - 9V x1

(5.) Battery clipper x1

(6.) Capacitor - 16V 100uf

(7.) Resistor - 10K x1

Step 2: Mosfet IRFZ44N

This picture shows the output pins of this MOSFET.

Pin-1 - Gate

Pin-2 - Drain

Pin-3 - Source

Step 3: Solder 10K Resistor

Firstly we have to solder 10K resistor to Gate pin and Drain pin of the MOSFET as solder in the picture.

Step 4: Next Solder Capacitor

Next solder +ve pin of capacitor to the Gate pin of MOSFET as you can see in the picture.

Step 5: Next Connect Aux Cable Wire

Now we have to connect aux cable wire to the circuit.

Connect Left/Right (+ve) Wire of aux cable to -ve pin of capacitor and

Connect -ve (GND) wire of aux cable to Source pin of the MOSFET as you can see in the picture.

Step 6: Connect Speaker Wire

Now connect +ve wire of speaker to source pin of the MOSFET as solder in the picture.

Step 7: Connect Battery Wire

Next connect battery clipper wire to the circuit.

Solder +ve wire of battery clipper to the Drain pin of MOSFET and

-ve pin of battery clipper to -ve wire of speaker as you can see in the picture.

Step 8: Now Amplifier Circuit Is Ready

Now this MOSFET amplifier circuit is ready.


Connect battery to the battery clipper and plug in aux cable to mobile phone/laptop/tab..... and play songs.

NOTE : If Amplifier is not working then change the polarity of battery.

Enjoy songs with full volume.

Have you any doubt about this project comment below now and don't forget to follow utsource.

Thank you

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