Modeling and Simulation of Full-Bridge Series Resonant Converter Based on Generalized State Space Averaging

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The small signal modeling technique based on the generalized state space averaging method is applied to single phase full-bridge resonant DC/DC converter .According to the simulation, the frequency characteristic curve is obtained from MATLAB, this paper analyzes the influence of the duty ratio, input voltage to frequency characteristics, then builds a closed loop simulation circuit with PSIM software, the simulation results show that, the small signal model has good controllability and anti disturbance resistance, generalized state space averaging method is more accurate to series resonant converter modeling.

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1828-1832

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August 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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