ZVS investigation of llc converters based on FHA assumptions

@article{Oeder2013ZVSIO,
  title={ZVS investigation of llc converters based on FHA assumptions},
  author={Christian Oeder and Thomas Duerbaum},
  journal={2013 Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition (APEC)},
  year={2013},
  pages={2643-2648}
}
While resonant converters have been gaining much attention within the recent years, their exact mathematical description is rather complicated. Thus, simplified calculation methods are very attractive, e.g. the First Harmonic Approximation (FHA). Although the steady state solution of these simplified methods is usually quite acceptable and close to the exact solution, the prediction of the ZVS characteristic is either neglected or treated to simple. The ZVS characteristic is typically directly… CONTINUE READING

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