The class-D audio amplifier is much more efficient than a class-AB amplifier because the output MOSFETs switch from very high impedance to very low impedance, operating nanoseconds in the active ...

The efficiency and size advantages of Class D audio amplification in battery- powered devices are well known. These advantages are now extended to amplifiers up to 500W, made ...

Want a high-performance audio amplifier with great quiescent-current performance numbers? The class AB amplifier improves the efficiency and lowers the distortion versus other amps.

LONDON — Wolfson Microelectronics plc has started sampling the first audio codec targeting speaker drivers that deploy its proprietary technology which allows the audio amplifier to switch from Class ...