Title :
An interval mathematics approach to tolerance analysis of switching converters
Author :
Cirillo, A. ; Femia, N. ; Spagnuolo, G.
Author_Institution :
Dipartimento di Ingegneria dell´´Inf. ed Ingegneria Elettrica, Salerno Univ., Italy
Abstract :
The paper shows how interval mathematics (IM) can be profitably used to solve problems of tolerance analysis of switching power converters. The effects of circuit modeling approximations and of several concurring uncertainty sources are considered. It is shown that a straight evaluation of the global joined inference of all uncertainty sources is allowed by IM techniques, without resorting to iterative computations. Some applications to PWM DC-DC switching power converters are proposed concerning the effects of parameters uncertainties upon the boundary between continuous and discontinuous conduction modes, the control-to-output and the input-to-output frequency responses, the amplitude and phase margins and the DC voltage transfer ratio
Keywords :
DC-DC power convertors; PWM power convertors; circuit reliability; frequency response; switching circuits; tolerance analysis; DC voltage transfer ratio; PWM DC-DC switching power converters; amplitude; circuit modeling approximations; continuous conduction mode; control-to-output frequency response; discontinuous conduction mode; global joined inference; input-to-output frequency response; interval mathematics; parameters uncertainties; phase margins; tolerance analysis; uncertainty sources; Circuits; DC-DC power converters; Mathematics; Pulse width modulation; Pulse width modulation converters; Switching converters; Tolerance analysis; Uncertain systems; Uncertainty; Voltage control;
Conference_Titel :
Power Electronics Specialists Conference, 1996. PESC '96 Record., 27th Annual IEEE
Conference_Location :
Baveno
Print_ISBN :
0-7803-3500-7
DOI :
10.1109/PESC.1996.548757
