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Volume : II, Issue : IV, May - 2012 SIMULATION AND ANALYSIS OF PWM-CONTROLLED QUASI-RESONANT CONVERTER FOR DRIVES Helen Priscilla A.S. and Ashly Mary Tom DOI : 10.9780/22307850, Published By : Laxmi Book Publication Abstract : This paper presents the development of a new resonant capacitor assisted pulse width modulationcontrolled
quasi resonant converter with an auxiliary circuit which does the load regulation by controlling
the ripple of the resonant voltage. This resonant converter is simulated through MATLAB/SIMULINK. This
newly developed quasi resonant DC-DC converter can regulate its DC output under a principle of constant
frequency soft switching commutation by a controllable PWM duty cycle control scheme. The ripple of the
resonant voltage across the primary resonant capacitor is controlled with a bidirectional auxiliary circuit,
while the main switches are operated at a fixed duty ratio and fixed switching frequency. The operating
performances of the newly proposed PWM-controlled quasi resonant converter are represented based on
simulation results from an applications point of view. . Keywords : Article : Cite This Article : Helen Priscilla A.S. and Ashly Mary Tom, (2012). SIMULATION AND ANALYSIS OF PWM-CONTROLLED QUASI-RESONANT CONVERTER FOR DRIVES. Indian Streams Research Journal, Vol. II, Issue. IV, DOI : 10.9780/22307850, http://oldisrj.lbp.world/UploadedData/928.pdf References : - Y. Hu, Z. Lu, L. Hang, Z. Qian, and G. Huang, “Three-level LLC series resonant DC–DC converter,” IEEE Trans. Power Electron., vol. 20, no.4, pp. 781–789, Jul. 2005.
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