Shockley equation is non-linear but without any linearisation effort such as in BJT small signal biasing, half wave rectifier passes almost an undistorted half sine wave.
In amplifier we bring the bias to a linear region for a small signal.
What confuses me in rectification theres no such thing as linearization and we use the diode in non linear way but how come the current wave form is not distorted? Imagine a half wave or full wave rectifier with pure resistive load. The current looks not distorted. We have a non linear component yet the current is not effected from this nonlinearity it looks like. ?