The paper considers an open loop-operation of a PWM DC-DC Buck converter at a constant duty-cycle. Under these conditions, the converters compensate the effects of the parasitic resistances adjusting the diode duty-cycle D1. All four network functions describing the frequency-domain behavior of a discontinuous conduction mode (DCM) operated DC-DC buck converter power stage are derived considering D1 adjustments. These network functions are derived in a closed form both manually and by using a symbolic circuit simulator. Bode plots of the network functions are also given for the buck converter. These functions are derived by utilizing a small signal equivalent circuit of the switching-cell composed of controlled current sources and resistances. Experimental results confirm the accuracy of theoretical derivations.

Derivation of network functions for PWM DC-DC Buck converter in DCM including effects of parasitic components on diode duty-cycle / Luchetta, Antonio; Manetti, Stefano; Piccirilli, Maria Cristina; Reatti, Alberto; Kazimierczuk, Marian K.. - ELETTRONICO. - (2015), pp. 778-783. (Intervento presentato al convegno 15th IEEE International Conference on Environment and Electrical Engineering, EEEIC 2015 tenutosi a ita nel 2015) [10.1109/EEEIC.2015.7165263].

Derivation of network functions for PWM DC-DC Buck converter in DCM including effects of parasitic components on diode duty-cycle

LUCHETTA, ANTONIO;MANETTI, STEFANO;PICCIRILLI, MARIA CRISTINA;REATTI, ALBERTO;
2015

Abstract

The paper considers an open loop-operation of a PWM DC-DC Buck converter at a constant duty-cycle. Under these conditions, the converters compensate the effects of the parasitic resistances adjusting the diode duty-cycle D1. All four network functions describing the frequency-domain behavior of a discontinuous conduction mode (DCM) operated DC-DC buck converter power stage are derived considering D1 adjustments. These network functions are derived in a closed form both manually and by using a symbolic circuit simulator. Bode plots of the network functions are also given for the buck converter. These functions are derived by utilizing a small signal equivalent circuit of the switching-cell composed of controlled current sources and resistances. Experimental results confirm the accuracy of theoretical derivations.
2015
2015 IEEE 15th International Conference on Environment and Electrical Engineering, EEEIC 2015 - Conference Proceedings
15th IEEE International Conference on Environment and Electrical Engineering, EEEIC 2015
ita
2015
Luchetta, Antonio; Manetti, Stefano; Piccirilli, Maria Cristina; Reatti, Alberto; Kazimierczuk, Marian K.
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/1008584
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