A Systematic Method for the Stability Analysis of Multiple-Output Converters

The dynamics of multiple-output dc-dc converters are discussed. A multi-input-multi-output (MIMO) feedback system model incorporating effects of the output fluctuation is derived for the converter. Based on system theoretic tools, a set of stability conditions is obtained for the MIMO model; the res...

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Veröffentlicht in:	IEEE transactions on power electronics 1987-10, Vol.PE-2 (4), p.343-353
Hauptverfasser:	Liu, Chen-Ching, Ding, Kung-Hau, Young, James R., Beutler, Jon F.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Coupling circuits DC-DC power converters Electrical engineering. Electrical power engineering Exact sciences and technology Filters Fluctuations Inductors MIMO Power electronics, power supplies Pulse width modulation Pulse width modulation converters Stability analysis Switching converters
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Beschreibung
Zusammenfassung:	The dynamics of multiple-output dc-dc converters are discussed. A multi-input-multi-output (MIMO) feedback system model incorporating effects of the output fluctuation is derived for the converter. Based on system theoretic tools, a set of stability conditions is obtained for the MIMO model; the result is used to formulate a stable margin. A practical five-output converter was selected for illustration of the proposed analytic tool. The effects of the input filter and coupled inductor on system stability margin are investigated.
ISSN:	0885-8993 1941-0107
DOI:	10.1109/TPEL.1987.4307870