Massachusetts Institute of Technology

Olivia Leitermann

David J Perreault

Juan M Rivas

Yehui Han

Robert C N Pilawa-Podgurski

Anthony D Sagneri

Methods and apparatus for a dc-dc converter for operating at substantially fixed switching frequency, the converter including a rectifier, and a resonant inverter coupled to the rectifier, the resonant inverter including a switch and a reactive network having first, second, third and fourth energy storage elements, wherein an impedance magnitude at the output of the switch due to the reactive network has minima at dc and at a frequency near a second harmonic of the switching frequency.

Methods and apparatus for a resonant converter

A resistance compression network substantially decreases the variation in effective resistance seen by a tuned rf inverter as loading conditions change. Circuits can include resistance compression networks and rectifiers to form rf-to-dc converters having narrow-range resistive input characteristics.

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Arlington, MA, United States of America

Olivia Leitermann