Digital Power Conversion System based on a Sigma-Delta Modulator Linear Model

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Abstract

This paper presents a new linear model for the Sigma-Delta (ΣΔ) modulator, based on modeling the nonlinear quantizer with a linear factor, and its input-to-output transfer function is given. The use of a 1-bit Sigma-Delta modulator in dc/dc power converter systems permits to implement a complete digital control. Results of an investigation from a prototype for a DC-DC converter are here reported. Using of a field programmable gate array allows implementing a simple variable control function. The modulator output produces a variable-frequency variable duty-ratio signal to control the switching power transistors.
Lingua originaleEnglish
Stato di pubblicazionePublished - 2004

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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title = "Digital Power Conversion System based on a Sigma-Delta Modulator Linear Model",
abstract = "This paper presents a new linear model for the Sigma-Delta (ΣΔ) modulator, based on modeling the nonlinear quantizer with a linear factor, and its input-to-output transfer function is given. The use of a 1-bit Sigma-Delta modulator in dc/dc power converter systems permits to implement a complete digital control. Results of an investigation from a prototype for a DC-DC converter are here reported. Using of a field programmable gate array allows implementing a simple variable control function. The modulator output produces a variable-frequency variable duty-ratio signal to control the switching power transistors.",
keywords = "DC-DC converters ; Digital control systems ; digital controller",
author = "Giuseppe Capponi and Patrizia Livreri and {Di Blasi}, {Giuseppe Maria} and Filippo Marino",
year = "2004",
language = "English",

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TY - CONF

T1 - Digital Power Conversion System based on a Sigma-Delta Modulator Linear Model

AU - Capponi, Giuseppe

AU - Livreri, Patrizia

AU - Di Blasi, Giuseppe Maria

AU - Marino, Filippo

PY - 2004

Y1 - 2004

N2 - This paper presents a new linear model for the Sigma-Delta (ΣΔ) modulator, based on modeling the nonlinear quantizer with a linear factor, and its input-to-output transfer function is given. The use of a 1-bit Sigma-Delta modulator in dc/dc power converter systems permits to implement a complete digital control. Results of an investigation from a prototype for a DC-DC converter are here reported. Using of a field programmable gate array allows implementing a simple variable control function. The modulator output produces a variable-frequency variable duty-ratio signal to control the switching power transistors.

AB - This paper presents a new linear model for the Sigma-Delta (ΣΔ) modulator, based on modeling the nonlinear quantizer with a linear factor, and its input-to-output transfer function is given. The use of a 1-bit Sigma-Delta modulator in dc/dc power converter systems permits to implement a complete digital control. Results of an investigation from a prototype for a DC-DC converter are here reported. Using of a field programmable gate array allows implementing a simple variable control function. The modulator output produces a variable-frequency variable duty-ratio signal to control the switching power transistors.

KW - DC-DC converters ; Digital control systems ; digital controller

UR - http://hdl.handle.net/10447/8636

M3 - Paper

ER -