Design and characterization of a signal insulation coreless transformer integrated in a CMOS gate driver chip

Timothé Simonot (1) , Nicolas Clément, Jean-Paul Rouger (1) , Jean-Christophe Crébier (1) , Jean-Daniel Arnould (2)

1 G2ELab - Laboratoire de Génie Electrique de Grenoble
2 IMEP-LAHC - Institut de Microélectronique, Electromagnétisme et Photonique - Laboratoire d'Hyperfréquences et Caractérisation

With the development of multi-level, multiphase or network converters requiring the implementation of numerous distinct power transistor gate drivers, the control signal insulation is becoming more and more important in power converters. This paper presents an isolation technique based on a coreless transformer integrated in a CMOS silicon die together with the gate driver and other required functions. The associated demodulation circuit will also be presented, as the control signal must be modulated at a high frequency through the coreless transformer. The chosen design methodology will be explained and experimental results will be shown in order to validate the functionality.

Domaines: Energie électrique

Timothé Simonot, Nicolas Clément, Jean-Paul Rouger, Jean-Christophe Crébier, Jean-Daniel Arnould. Design and characterization of a signal insulation coreless transformer integrated in a CMOS gate driver chip. Design and characterization of a signal insulation coreless transformer integrated in a CMOS gate driver chip, May 2011, San Diego, United States. pp.360-363. ⟨hal-00599260⟩