You must place the series-resonantcircuit within a small fraction of onewavelength of any device that it isprotecting. Within that limited radius,the spreading inductance of the powerand ground planes ...

A. Witulski and R. Erickson, “Steady-State Analysis of the Series Resonant Converter,” IEEE Transactions on Aerospace and Electronic Systems", vol. AES-21, no. 6, pp. 791-799, November 1985. This ...

Resonant converters have been around for a long time. However, only now are they seeing increased acceptance as controllers become more available and there is an absolute need to improve efficiency.