Audio Amplifier Ic Lm386

The ic lm386 is a low power audio amplifier and it utilizes low power supply like batteries in electrical and electronic circuits this ic is available in the package of mini 8 pin dip.

Audio amplifier ic lm386. This is a very basic circuit that you can find all over using an lm386 integrated circuit. Lm386 mini audio amplifier circuit. The ic lm386 is a power amplifier used for amplifying small audio signals with low supply voltages. Here is a simple lm386 based audio amplifier circuit with the author s prototype shown below.

The gain range is 20 to 200 gain is internally set to 20 without using external component but can be increased to 200 by using resistor and capacitor between pin 1. 4 ma voltage gains from 20 to 200 ground referenced input self centering output quiescent voltage. To instead each other. Circuit diagram of the lm386 based audio amplifier is shown in fig.

With a 9v battery can listen sound for long. I wanted to design an audio amplification circuit for a future project so i just wanted to design this one for now so i get an understanding of how it works. Most of the component values in this circuit aren t critical. It is built around popular amplifier lm386 ic1 an 8 ohm one watt speaker ls1 four capacitors and a few other components.

0 25w or 0 5w. The loudspeaker use 4 ohms or 8 ohms. Sponsored by the great courses plus. A great sounding lm386 audio amplifier.

Imagine you make an am receiver circuit. It comes in an 8 pin mini dip package. The ic is designed to deliver a voltage amplification of 20 without external add on parts. Lm386 snas545c may 2004 revised may 2017 lm386 low voltage audio power amplifier 1 1 features 1 battery operation minimum external parts wide supply voltage range.

4 v 12 v or 5 v 18 v low quiescent current drain. The integrated chip lm386 is a low power audio frequency amplifier requiring a low level power supply most often batteries. Lm386 based audio amplifier. Now that you ve seen the bare minimum of what it takes to make an audio amplifier with the lm386 lets build a higher fidelity version with an adjustable gain control.

Lm386 is a low voltage audio amplifier and frequently used in battery powered music devices like radios guitars toys etc. Get 30 free days at. How to use the popular lm386 class ab audio amplifier ic to build a simple mono 1 watt audio amplifier. This circuit is based on lm386 ic to amplify sound.

It costs less than 3 in parts. The voltage gain of this amplifier can be adjusted to 20 and the voltage gain will be enhanced to 200 by employing external components like resistors as well as capacitors among the pins 1 8.