Rising Demand for Class D Audio Amplifier Led by Rising Usage of Smartphones
The class D audio amplifier is projected to rise in the coming years. The audio amplifiers are used for reproducing the input audio signals at sound-producing output elements, with desired power levels and volume at low distortion. Audio frequencies usually range from 20 Hz to 20 kHz, so the amplifier gives a good frequency response in this range. Power capabilities vary massively relying on the application, from milliwatts in headphones to a few watts in PC audio or TV, to tens of watts for mini home stereos for automotive audio and mini home stereos, to hundreds of watts or more for powerful commercial and home sound systems. A direct implementation of analog involves an audio amplifier to utilize transistors in linear mode to develop an output voltage, that is concerned with as input voltage copy. The forward voltage gains primarily high. If the feedback loop involves forward gain, then the overall loop gain is high. Feedback is also utilized for improving performance in high loop ...