LOW DELAY, LOW POWER AND HIGH LINEARITY CLASS-D MODULATION LOOP

LOW DELAY, LOW POWER AND HIGH LINEARITY CLASS-D MODULATION LOOP

Systems and methods include a circuit having a plurality of integrator circuits arranged in series and configured to receive an input signal at a first of the plurality of integrators and generate an output signal at a last of the plurality of integrators, a filter arranged to receive a feedback sig...

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Hauptverfasser: SHEN, Dan, ZHANG, Yunfu, CRESPI, Lorenzo
Format: Patent
Sprache:eng
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AMPLIFIERS
BASIC ELECTRONIC CIRCUITRY
CODE CONVERSION IN GENERAL
CODING
DECODING
ELECTRICITY
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creator SHEN, Dan
ZHANG, Yunfu
CRESPI, Lorenzo
description Systems and methods include a circuit having a plurality of integrator circuits arranged in series and configured to receive an input signal at a first of the plurality of integrators and generate an output signal at a last of the plurality of integrators, a filter arranged to receive a feedback signal comprising the output signal and generate a filtered feedback signal, which is applied to the input signal before input to the first of the plurality of integrators, and a feedback signal path configured to receive the feedback signal and apply the feedback signal to an input of a second of the plurality of integrators. The circuit may include a class-D amplifier and/or a delta-sigma modulator. The input signal may include an analog audio signal that is amplifier to drive an audio speaker.
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subjects AMPLIFIERS
BASIC ELECTRONIC CIRCUITRY
CODE CONVERSION IN GENERAL
CODING
DECODING
ELECTRICITY
title LOW DELAY, LOW POWER AND HIGH LINEARITY CLASS-D MODULATION LOOP
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