LM386 Current Amplifier

A Transformer Input LM386 Audio Amplifier

Isolation: The transformer provides isolation between the input signal and the amplifier circuit. This can be useful for reducing noise and ground loops.

Impedance matching: The transformer can be used to match the impedance of the input signal to the input impedance of the amplifier. This can help to improve the gain and efficiency of the amplifier.

Signal level matching: The transformer can be used to adjust the level of the input signal to match the input range of the amplifier. This can be useful for preventing clipping and distortion.

Common mode rejection: The transformer can help to reject common mode noise from the input signal. This can be useful for improving the signal-to-noise ratio of the amplifier.