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Understanding Amplifier Operating ... - Electronic Design
https://www.electronicdesign.com/technologies/analog/article/21801654/understanding-amplifier-operating-classes
Class D’s origins emanated from Harris Semiconductor. The company introduced the first drivers for class D audio amplifiers in 1995, …
Class D amplifiers provide high efficiency for audio systems
https://www.epanorama.net/sff/Audio/Circuits/Power_amplifiers-Class-D/Class%20D%20amplifiers%20provide%20high%20efficiency%20for%20audio%20systems.PDF
Harris Semiconductor Advances in MOSFET technology and integrated half- and full-bridge predrivers now make class D amplifiers a practical alternative to linear amplifiers in …
Harris IRFP 240 | diyAudio
https://www.diyaudio.com/community/threads/harris-irfp-240.364153/
Maybe you are lucky, hope so, but remember Harris disappeared 20 years ago, anybody holding significative quantities would be a miracle: Intersil Corp. is new name of former Harris Semiconductor. Officials of the former Harris Corp. Semiconductor Sector in Melbourne, Fla., are renaming the company Intersil Corp. after parent Harris Corp. spun ...
US5777519A - High efficiency power amplifier - Google …
https://patents.google.com/patent/US5777519A/en
H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers H03F3/21—Power amplifiers,...
Audio Spectrum Analyzer Final Report
http://pages.hmc.edu/harris/class/e155/projects03/volume.pdf
Our final project was to build a simple audio spectrum analyzer. The device will take line-level stereo audio input and display the spectrum on a bank of LED arrays. There will be seven frequency bands for both the left and right channels for a total of 14 bands. The first major element of our system is the input processing section.
LM386 Low Voltage Audio Power Amplifier
http://pages.hmc.edu/harris/class/e155/LM386.pdf
National Semiconductor Asia Pacific Customer Response Group Tel: 65-2544466 Fax: 65-2504466 Email: [email protected] National Semiconductor Japan Ltd. Tel: 81-3-5639-7560 Fax: 81-3-5639-7507 www.national.com Dual-In-Line Package (N) Order Number LM386N-1, LM386N-3 or LM386N-4 NS Package Number N08E LM386 Low Voltage Audio Power Amplifier
Silent start class D amplifier - Harris Corporation
https://www.freepatentsonline.com/5805020.html
The class D amplifier requires an integrator, a duty-cycle modulator, a switch predrive circuit, and an output filter. The half-bridge class D amplifier using constant-frequency, duty-cycle modulation (FIG. 1), sums the square-wave output of the switching power transistors with the audio input to provide negative feedback.
US5805020A - Silent start class D amplifier - Google …
https://patents.google.com/patent/US5805020A/en
H03F3/00 — Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements; H03F3/20 — Power amplifiers, e.g. Class B amplifiers, Class C …
Harris Corporation - Wikipedia
https://en.wikipedia.org/wiki/Harris_Corporation
Harris Corporation was an American technology company, defense contractor, and information technology services provider that produced wireless equipment, tactical radios, electronic systems, night vision equipment and both terrestrial and spaceborne antennas for use in the government, defense and commercial sectors. They specialized in surveillance solutions, …
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