4/13/2023 0 Comments Lm386 amplifier circuit![]() The design of LM386 Audio Amplifier Circuit is very simple.Proper filtering must be done before connecting the output to a speaker as any DC signal might permanently damage the speaker. Pin 7 sets the path for decoupling and a capacitor must be connected between Pin 7 and Ground.We have used a 12V Power supply in this project. The maximum power supply to LM386 is 15V. ![]() Pins 6 and 4 are the power supply pins.The inverting input (Pin 2) of LM386 ic is connected to the Ground.Audio source connected at the audio input by using any audio player like mobile phone, laptops, music player or by using a microphone. Pins 2 and 3 are the inverting and non – inverting inputs of the amplifier (internally, they are connected to an OP-AMP).
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