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.

G CAPPONI, P LIVRERI, DI BLASI GM, F MARINO (2004). Digital Power Conversion System based on a Sigma-Delta Modulator Linear Model. In 2004 IEEE PES POWER SYSTEMS CONFERENCE & EXPOSITION, VOLS 1 - 3 (pp. 1467-1469).

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

CAPPONI, Giuseppe;LIVRERI, Patrizia;DI BLASI, Giuseppe Maria;
2004-01-01

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.
0-7803-8718-X
G CAPPONI, P LIVRERI, DI BLASI GM, F MARINO (2004). Digital Power Conversion System based on a Sigma-Delta Modulator Linear Model. In 2004 IEEE PES POWER SYSTEMS CONFERENCE & EXPOSITION, VOLS 1 - 3 (pp. 1467-1469).
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/8636
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