Bristol, UK—The Class D amplifier is the topology of choice in many audio applications because of its high efficiency, in the 80 to 90% (or higher) range at its higher-power levels. But this efficiency drops off in the standard Class D approach.
Relative newcomer Audium Semiconductor Ltd claims to have overcome this drawback, with a novel, proprietary design which maintains efficiency across all power levels. Their AS1001 100W mono amplifier, targeted at embedded applications such as wireless speakers, home theaters, and portable speakers, minimizes the difficulties of dealing with the relatively high peak-to-average-power ratio (PAPR) characteristic of music applications.
source: eetimes.com
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