This work presents a review of integrated transformers for galvanic isolation with particular focus on their modelling in power transfer systems. A comparison between transformer-coupled oscillator topologies is carried out, highlighting the main differences in the realization of the isolation transformers. Lumped geometrically scalable modelling of the most adopted isolation transformer topologies are presented and compared. Transformer models have been validated by means of electromagnetic simulations in a wide range of geometrical parameters, achieving absolute errors lower than 12% for inductance, Q-factor peak, self-resonance frequency, and magnetic coupling factor.

Scalable lumped models of integrated transformers for galvanically isolated power transfer systems

Greco, Nunzio;Parisi, Alessandro;Ragonese, Egidio
;
Palmisano, Giuseppe
2018

Abstract

This work presents a review of integrated transformers for galvanic isolation with particular focus on their modelling in power transfer systems. A comparison between transformer-coupled oscillator topologies is carried out, highlighting the main differences in the realization of the isolation transformers. Lumped geometrically scalable modelling of the most adopted isolation transformer topologies are presented and compared. Transformer models have been validated by means of electromagnetic simulations in a wide range of geometrical parameters, achieving absolute errors lower than 12% for inductance, Q-factor peak, self-resonance frequency, and magnetic coupling factor.
Electromagnetic (EM) simulations; Galvanic isolation; Integrated circuits (ICs); Integrated transformer; Lumped scalable model; Silicon technology; Transformer-coupled oscillator; Software; Hardware and Architecture; Electrical and Electronic Engineering
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.11769/321497
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