Amplitude Modulated Resonant Push-Pull Driver for Piezoelectric Transformers in Switching Power Applications

Conference: CIPS 2012 - 7th International Conference on Integrated Power Electronics Systems
03/06/2012 - 03/08/2012 at Nuremberg, Germany

Proceedings: CIPS 2012

Pages: 5Language: englishTyp: PDF

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Schwarzmann, Holger; Erlbacher, Tobias; Bauer, Anton J.; Ryssel, Heiner; Frey, Lothar (Fraunhofer Institut für Integrierte Systeme und Bauelementtechnologie IISB, Schottkystr. 10, 91058 Erlangen, Germany)
Frey, Lothar (Lehrstuhl für Elektronische Bauelemente an der Friedrich-Alexander-Universität Erlangen-Nürnberg, Cauerstr. 6, 91058 Erlangen, Germany)

Piezoelectric transformers (PTs) reveal a promising potential to replace conventional transformers in driving circuits for switching power applications, e.g. high-side driver for IGBT or MOSFET switches. With the realized driver design it is possible to transfer - galvanically insulated - both energy and information with one single PT. Above all, adapted with resonant driver topologies PTs offer increased efficiencies.