Article View: sci.electronics
Article #19119Class D Power Amplifiers?
From: Stu Bell
Date: Thu, 05 May 1988 20:40
Date: Thu, 05 May 1988 20:40
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950 bytes
Okay audiophiles, I've been out of touch with hi-tech audio trends since I left college (and my audio fanatic roomie) 9 years ago. Whatever happened to Class D (digital) power amplifiers? I remember that Infinity (or was it Phase Linear?) came out with one in 1978, but I assume it failed miserably since it (or a reasonable facsimile) is no longer for sale. What's wrong with pulse modulation (essentially the digital approach) for power amplifiers? Do the high frequency harmonics of the square waves fry speakers? Stu Bell HP Colorado IC Division "No Clever Quotes, Just Honest Curiosity"
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<4110001@hpficad.HP.COM>Path:
arc1-ca.pugleaf.net!utzoo!mnetor!uunet!husc6!think!ames!pasteur!ucbvax!decwrl!hplabs!hpda!hp-sde!hpfcdc!hpficad!stuShow Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!mnetor!uunet!husc6!think!ames!pasteur!ucbvax!decwrl!hplabs!hpda!hp-sde!hpfcdc!hpficad!stu From: stu@hpficad.HP.COM (Stu Bell) Newsgroups: sci.electronics Subject: Class D Power Amplifiers? Message-ID: <4110001@hpficad.HP.COM> Date: 5 May 88 20:40:38 GMT Organization: Hewlett Packard CICD Lines: 16