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

Patrizia Livreri, Giuseppe Capponi, Filippo Marino, Giuseppe Maria Di Blasi

Research output: Contribution to conferenceOther

4 Citations (Scopus)

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.
Original languageEnglish
Pages1467-1469
Number of pages3
Publication statusPublished - 2004

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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