This paper presents an analog implementation of a digitally reprogrammable control for fixed frequency switching power converters. It is a recursive discrete time filter based on switched capacitor delay cells. The proposed circuit allows to synthesize different transfer functions in order to cope with the modifications in dynamics of power converters due to inputs or parameters variations. A prototype of the filter has been realized and tested. It has been employed in two different configurations to control a step-down converter operating either in the continuous conduction mode or in the discontinuous conduction mode.

An alternative approach toward adaptive control of fixed frequency power converters / M. Riva, F. Belloni, D. Della Giustina, P. Maranesi - In: Proceedings of the 14. international power electronics and motion control conference : EPE-PEMC 2010Piscataway : IEEE, 2010 Sep. - ISBN 978-1-4244-7854-5. - pp. T3.159-T3.164 (( Intervento presentato al 14. convegno International power electronics and motion control conference : EPE-PEMC 2010 tenutosi a Ohrid, Rep. of Macedonia nel 2010 [10.1109/EPEPEMC.2010.5606546].

An alternative approach toward adaptive control of fixed frequency power converters

M. Riva
Primo
;
F. Belloni
Secondo
;
D. Della Giustina
Penultimo
;
P. Maranesi
Ultimo
2010-09

Abstract

This paper presents an analog implementation of a digitally reprogrammable control for fixed frequency switching power converters. It is a recursive discrete time filter based on switched capacitor delay cells. The proposed circuit allows to synthesize different transfer functions in order to cope with the modifications in dynamics of power converters due to inputs or parameters variations. A prototype of the filter has been realized and tested. It has been employed in two different configurations to control a step-down converter operating either in the continuous conduction mode or in the discontinuous conduction mode.
Adaptive control; Control methods for electrical systems; Converter control; Power conditioning
Settore ING-INF/01 - Elettronica
IEEE
EPE Association
Book Part (author)
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/149890
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