Crossover Distortion
Crossover distortion is a type of distortion that occurs in class B and class AB audio amplifiers when the output transistors switch on and off, causing a discontinuity or 'dead zone' in the output waveform near the zero-crossing point. It results in audible artifacts like harshness or 'notch' distortion in audio signals, particularly at low volumes. This phenomenon is a key consideration in amplifier design to ensure high-fidelity sound reproduction.
Developers should learn about crossover distortion when working on audio processing, amplifier design, or embedded systems involving analog signal amplification, as it directly impacts audio quality and system performance. Understanding it is crucial for designing or troubleshooting class B/AB amplifiers, audio codecs, or any application where low-distortion amplification is required, such as in consumer electronics, professional audio equipment, or automotive sound systems.