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Analysis and design of parallel resonant convertor at high Q L

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3 Author(s)
M. K. Kazimierczuk ; Dept. of Electr. Eng., Wright State Univ., Dayton, OH, USA ; W. Szaraniec ; S. Wang

A parallel resonant convertor (PRC) operating in the continuous conduction mode (CCM) is analyzed, using a high loaded quality factor QL assumption (i.e., QL>2.5) and Fourier series techniques. Simple analytical expressions for performance characteristics are derived under steady-state conditions for use in designing and understanding the behavior of the PRC. Three Class-D voltage-driven rectifiers are analyzed, taking into account the diode threshold voltage and the diode forward resistance. Experimental results measured for a 50-W convertor above the resonance at different load resistances and input voltages show excellent agreement with the theoretical performance predicted by the equations

Published in:

IEEE Transactions on Aerospace and Electronic Systems  (Volume:28 ,  Issue: 1 )