Analysis, modeling, and simulation of series-parallel resonant converter circuits

• Published in: IEEE transactions on power electronics Vol. 10; no. 5; pp. 605 - 614
• Main Authors: Siu-Chung Wong, Brown, A.D.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.09.1995; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Analytical models; Applied sciences; Circuit simulation; Electrical engineering. Electrical power engineering; Electronics; Equations; Equivalent circuits; Exact sciences and technology; Frequency; Power electronics, power supplies; Power supply; Pulse width modulation converters; Resonance; RLC circuits; Simulation; SPICE; Transient analysis; Parallel resonance; Series resonance
• ISSN: 0885-8993; 1941-0107
• DOI: 10.1109/63.406849

This paper presents a SPICE macromodel for a generic series-parallel resonant converter circuit. The model is derived from the averaged time-invariant state-space equations obtained from a Fourier transform. The conditions are derived under which all but the fundamental harmonic may be discarded, and the model developed based solely on the fundamental Fourier component. The single macromodel developed has a wide range of validity, and allows DC, AC, and transient analyses to be carried out in a fast, easy, and familiar manner. It also permits the converter to be incorporated alongside its control circuitry into an entire system. The simulation results from the model have been compared to results from a full simulation, and the agreement is found to be excellent, with the macromodel simulation running between 37 and 4700 times faster than the full simulation.< >