A Class D audio amplifier is a switching amplifier that consists of a pulse width modulator (with switching frequency in the order of several hundred kHz), a power bridge circuit and a low pass filter ...

The circuit was designed to produce high quality and powerful audio amplifier that would provide 60W-90W power output. MPSA43 – NPN high voltage transistor with low current and high voltage used for ...

While high efficiency is the goal; it may simplify the task to focus on losses instead. Power losses are easily attributed to specific devices, so a design that minimizes losses will naturally ...