Converting to Class D designs promises higher output power within the same system volume or miniaturization at existing power levels—both desirable for automotive audio and infotainment applications.

Class D amps are simple – just take an input, and use that to modulate a square wave with PWM. Send this PWM signal to a MOSFET or something, and you have the simplest class D amp in existence ...

To demo this, [Afrotech] used TI’s TPA3122 class d amplifier chip. It’s a pretty cheap chip for being a 15 Watt stereo amplifier, and the circuit is simple enough to build on a breadboard.

Different Forms of Class D Amplification Though we may think that “digital” means all the circuits in a digital amplifier work in on/off pulses, in fact there are a number of different types, ...

Have you ever read an amplifier review and encountered the terms Class A, Class A/B or Class D? We explain all.

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 ...

Class D amplifiers are superior to their predecessors in many ways, but none of them matter to music fans unless they sound good, too.

Conexant’s low-power CX20952 HD audio codec, replete with two cap-free headphone amplifiers and a fully integrated Class D amplifier, monitors power delivered to speakers to ensure ...