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Class-D amplifier

A class-D amplifier, or switching amplifier, is an electronic amplifier in which the amplifying devices (transistors, usually MOSFETs, increasingly GaN FETs) operate as electronic switches, and not as linear gain devices as in other amplifier classes. Class-D amplifiers operate by rapidly switching back and forth between the power supply rails, using…

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Overview

History

Basic operation

Signal modulation

Design challenges

Error control

Advantages

Uses

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Class-D amplifier

Nodes63
Edges62
Triples61
Avg. degree1.97
Density0.031746
Components1

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Class-D amplifier

Top relations

related to External links · 17
Class-D amplifier → Amplifiers, Archived, Class-D Audio Amplifiers, Design, Eric Designing With, IC-oriented Class, ICs, June, MOSFET, Part, Paul The Handiman's Guide, RF, Sergio, Switched Mode, Sánchez Moreno, Theory, Wayback Machine
related to Uses · 16
Class-D amplifier → AB, Amplifiers, Bass, Class, Class-D, For, Hearing, Home, Mobile, On, Powered, PWM, RF, SPL, The, These
related to Basic operation · 8
Class-D amplifier → Class-D, DC, In, Since, SMPS, The, This, Whereas
related to Switching speed · 7
Class-D amplifier → Dead, Failures, GaN FETS, Linear, MOSFET, MOSFETs, Two
related to Power supply design · 6
Class-D amplifier → Class-D, In, Linear, Reactive, The, This
related to Advantages · 4
Class-D amplifier → AB, Also, The, This
related to Active device selection · 2
Class-D amplifier → MOSFETs, The

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Important terminology

class-d output power amplifiers switching supply pwm amplifier signal mosfets audio voltage linear current devices modulation mosfet use mode using

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
delta-sigma modulation.A simple means of creating the PWM signal is to use a high-speed comparatorinstance ofor discrete-time forms of modulation0.80text
Class-D amplifierrelated to Active device selectionThe0.60section
Class-D amplifierrelated to Active device selectionMOSFETs0.60section
Class-D amplifierrelated to AdvantagesThe0.60section
Class-D amplifierrelated to AdvantagesThis0.60section
Class-D amplifierrelated to AdvantagesAlso0.60section
Class-D amplifierrelated to AdvantagesAB0.60section
Class-D amplifierrelated to Basic operationClass-D0.60section
Class-D amplifierrelated to Basic operationThis0.60section
Class-D amplifierrelated to Basic operationIn0.60section
Class-D amplifierrelated to Basic operationThe0.60section
Class-D amplifierrelated to Basic operationSince0.60section

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