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In Reply to: RE: What is the oldest Class D amplifier you are aware of? How long have they been around? nt posted by Self-Inflicted on June 14, 2025 at 12:02:03:
"In 1978, Sony introduced the TA-N88, the first class-D unit to employ power MOSFETs and a switched-mode power supply. There were subsequently rapid developments in MOSFET technology between 1979 and 1985. The availability of low-cost, fast-switching MOSFETs led to class-D amplifiers becoming successful in the mid-1980s. The first class-D amplifier based integrated circuit was released by Tripath in 1996, and it saw widespread use."
Apple used Tripath amplification in some of their early iMac computers.
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Follow Ups
- Good article. Thanks! - AbeCollins 07:59:30 06/16/25 (0)
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