Authors : S. Padmanabhan , Y. Sukhi and M. Palpandiyan
Abstract: The higher the frequency, better the waveform subject to certain limitation. However, with high load current, particularly when the switches are turned on and off they are subjected to high voltage stresses and high di/dt values. Due to this the power losses in the switches are high, which depends upon the frequency of modulation. In the recent years, attempts have been made to design the converter topology and improve the control strategies, so that switches are turned on and off while the current through it and/or voltage across it is zero. In order to achieve this condition LC circuits have been used in such away that the voltage and current pass through zero crossing due to resonance of LC circuits. Due to the advantages of high frequency of operation, higher efficiency, smaller size, lightweight, low component stresses and reduced electromagnetic interference there is an increased interest in the area of resonant converters. Various configurations of converter operation of LC resonance have been reported. One such configuration, which has number of desirable features, is known as series-parallel resonant converter. In this study, analysis of resonant converter has been carried out and the results predicted by the Pspice simulation are validated by the experimental results.
S. Padmanabhan , Y. Sukhi and M. Palpandiyan , 2008. Analysis, Simulation and Development of Resonant Converter for DC Motor Drive System . International Journal of Electrical and Power Engineering, 2: 64-70.