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).
Data di pubblicazione: | 2004 | |
Titolo: | Digital Power Conversion System based on a Sigma-Delta Modulator Linear Model | |
Autori: | ||
Citazione: | 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). | |
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. | |
ISBN: | 0-7803-8718-X | |
Appare nelle tipologie: | 2.07 Contributo in atti di convegno pubblicato in volume |
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