Eur. Phys. J. Appl. Phys.
Volume 34, Number 3, June 2006
|Page(s)||237 - 242|
|Section||Physics of Energy Conversion and Coupled Phenomena|
|Published online||24 June 2006|
Comparing piezoelectric and coreless electromagnetic transformer approaches in IGBT driver
École Normale Supérieure de Cachan Systèmes et Applications des Technologies de l'Information et de l'Énergie
(SATIE, UMR 8029), 61 avenue du président Wilson, 94230 Cachan, France
2 LEEI, 2 rue Charles Camichel, BP 7122, 31071 Toulouse Cedex 7, France
Corresponding author: firstname.lastname@example.org
Accepted: 19 December 2005
Published online: 24 June 2006
Gate drive circuits for power MOSFET's and IGBT's often require electrical insulation. Different methods of electrical insulation can be used: bootstrap circuits, transformers and optic couplers. It has been proved that Piezoelectric transformer (PT) exhibit suitable characteristics, good integration capability and can be used for both power and signal transfer in low power applications. However, coreless planar electromagnetic transformer (CT) technology is an alternative solution that can also give satisfactory results. This paper compares the performances and the capabilities of integration of these two kinds of transformers (i.e. PT vs. CT). The study and comparisons are carried out in a two-gate driver, functioning in a half-bridge inverter. The two devices have the same structure, similar electric characteristics (operating at resonance frequency in both cases), identical electric values and the dimensions of the two transformers are quite the same. Additionally, some EMI aspects regarding the use of these transformers will be considered.
PACS: 85.50.-n – Dielectric, ferroelectric, and piezoelectric devices / 84.30.Jc – Power electronics; power supply circuits
© EDP Sciences, 2006
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.