NDLI: A novel envelope response technique for large signal dynamic analysis of resonant converters

Content Provider	IEEE Xplore Digital Library
Author	Yingqi Zhang Sen, P.C.
Copyright Year	2002
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Queen's Univ., Kingston, Ont., Canada (Yingqi Zhang; Sen, P.C.)
Abstract	In this paper, a novel technique using orthogonal functions to analyze the large signal transitions in resonant converters is proposed. For a given resonant converter, another circuit is constructed with its response orthogonal with that of the original circuit. By combining two circuits into one complex circuit, Laplace transformation and its properties can be applied to derive the envelope response. When there are initial conditions in the resonant converters, orthogonal counterparts of these initial conditions are also investigated and derived. With the above method, large signal dynamic response of resonant converters excited by any external sources and initial conditions can be derived. As examples, series resonant DC/AC converters are investigated by the proposed method under some typical large signal transitions such as startup process with or without initial conditions, transitions when switching frequency, or DC supply voltage source, or load has a step change. General solutions of the envelope response of resonant inductor current are given in detail. The dynamic response as well as the steady state values are therefore obtained. The results are verified by PSPICE simulation. The proposed technique will also be applied to other resonant converters such as parallel resonant DC/AC converters, series resonant DC/DC converters and parallel resonant DC/DC converters.
Starting Page	1898
Ending Page	1903
File Size	491366
Page Count	6
File Format	PDF
ISBN	078037262X
DOI	10.1109/PSEC.2002.1023091
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-06-23
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Resonance Analog-digital conversion RLC circuits DC-DC power converters Signal analysis Switching converters Signal processing Switching frequency Voltage Inductors
Content Type	Text
Resource Type	Article

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