A good ground plane is the key to a good class-D amplifier layout. The bottom side of the circuit board should be used exclusively as a ground plane if possible; a full ground plane will provide the ...

A Zobel circuit is also known as a Boucherot cell or somewhat incorrectly as an RC snubber. The nominal impedance of a loudspeaker is not constant, and rises significantly at the upper end of the ...

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.

If you’re looking for a DIY amplifier project made with a minimum of parts, this is the build for you. [Rouslan] created a 70 watt class D amplifier ... In [Rouslan]’s circuit, the audio ...

In a Class A circuit the level of that current is always set to maximum ... signal where the peak of the signal results in the widest pulse and the trough, the narrowest. Class D amplifiers always ...

This file type includes high resolution graphics and schematics when applicable. Class D audio amplifiers are able to fulfill the requirements for audio applications such as mobile handsets ...

To say that class D amplifiers can't radiate directly from the circuit board is a slight oversimplification. Unfortunate choices of switching components and drive circuits can lead to spectral output ...

Emitted EMI is a drawback to the switching topology of the Class D amplifier. Passive filtering can moderate EMI but adds cost and complexity to the end product. What other internal circuit design ...