My latest buy is an amplifier which saves space, electricity and does not generate much heat. Before we dive deep into this phenomenon of class D amplification, let me show you how it looks.
The working of this is by conversion of the audio signal into chain of pulses (also called pulse train) of varying width and separation but constant amplitude. This chain of pulses is then amplified and fed to the loudspeaker. The reason for it's high efficiency is the MOSFETs either being fully on or fully off due to pulses of audio. Simple? Not quite.
Image from Wikipedia to explain the output signal:
The reason for buying this was to power my speakers lying at my home since 15 years, and let me tell you, the amplifier has done a good (not the best) job!
