Efficient performance simulation of class D amplifier output stages

Flemming Nyboe; Lars Risbo; Pietro Andreani

doi:10.1109/NORCHP.2005.1596982

Efficient performance simulation of class D amplifier output stages

Flemming Nyboe
, Lars Risbo
, Pietro Andreani

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research

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Abstract

Straightforward simulation of amplifier distortion involves transient simulation of operation on a sine wave input signal, and a subsequent FFT of the output voltage. This approach is very slow on class D amplifiers, since the switching behavior forces simulation time steps that are many orders of magnitude smaller than the duration of one period of an audio sine wave. This work presents a method of simulating the amplifier transfer characteristic using a minimum amount of simulation time, and then deriving THD from the results.

Original language	English
Title of host publication	Norchip 2005
Publisher	IEEE
Publication date	2005
Pages	32-35
ISBN (Print)	1-4244-0064-3
DOIs	https://doi.org/10.1109/NORCHP.2005.1596982
Publication status	Published - 2005
Event	2005 IEEE 23rd NORCHIP Conference - Oulu, Finland Duration: 21 Nov 2005 → 22 Nov 2005 https://ieeexplore.ieee.org/xpl/conhome/10643/proceeding

Conference

Conference	2005 IEEE 23rd NORCHIP Conference
Country/Territory	Finland
City	Oulu
Period	21/11/2005 → 22/11/2005
Internet address	https://ieeexplore.ieee.org/xpl/conhome/10643/proceeding

Bibliographical note

Copyright: 2005 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE

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10.1109/NORCHP.2005.1596982

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title = "Efficient performance simulation of class D amplifier output stages",

abstract = "Straightforward simulation of amplifier distortion involves transient simulation of operation on a sine wave input signal, and a subsequent FFT of the output voltage. This approach is very slow on class D amplifiers, since the switching behavior forces simulation time steps that are many orders of magnitude smaller than the duration of one period of an audio sine wave. This work presents a method of simulating the amplifier transfer characteristic using a minimum amount of simulation time, and then deriving THD from the results.",

author = "Flemming Nyboe and Lars Risbo and Pietro Andreani",

note = "Copyright: 2005 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE; 2005 IEEE 23rd NORCHIP Conference ; Conference date: 21-11-2005 Through 22-11-2005",

year = "2005",

doi = "10.1109/NORCHP.2005.1596982",

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AU - Risbo, Lars

AU - Andreani, Pietro

N1 - Copyright: 2005 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE

PY - 2005

Y1 - 2005

N2 - Straightforward simulation of amplifier distortion involves transient simulation of operation on a sine wave input signal, and a subsequent FFT of the output voltage. This approach is very slow on class D amplifiers, since the switching behavior forces simulation time steps that are many orders of magnitude smaller than the duration of one period of an audio sine wave. This work presents a method of simulating the amplifier transfer characteristic using a minimum amount of simulation time, and then deriving THD from the results.

AB - Straightforward simulation of amplifier distortion involves transient simulation of operation on a sine wave input signal, and a subsequent FFT of the output voltage. This approach is very slow on class D amplifiers, since the switching behavior forces simulation time steps that are many orders of magnitude smaller than the duration of one period of an audio sine wave. This work presents a method of simulating the amplifier transfer characteristic using a minimum amount of simulation time, and then deriving THD from the results.

U2 - 10.1109/NORCHP.2005.1596982

DO - 10.1109/NORCHP.2005.1596982

M3 - Article in proceedings

SN - 1-4244-0064-3

SP - 32

EP - 35

BT - Norchip 2005

PB - IEEE

T2 - 2005 IEEE 23rd NORCHIP Conference

Y2 - 21 November 2005 through 22 November 2005

ER -

Efficient performance simulation of class D amplifier output stages

Abstract

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