Gate driver with efficient energy recovery for a 3 MHz resonant converter

Author

Jarrousse, Jean-Michel ; Laboure, Eric ; Costa, F. ; Thomas, Philippe

Author_Institution

Syst. et Applications des Technol. de l´Inf. et de l´Energie, Ecole Normale Superieure de Cachan

fYear

2005

fDate

11-14 Sept. 2005

Abstract

This paper shows a new insulated gate driver with efficient energy recovery for the top and bottom switches of an half bridge. This gate driver is design to drive the main switches of a 3 MHz resonant converter (48 V/3.3 V 20 Watts). The originality of this driver comes from its low number of devices and its high frequency operation even if it drives switches having a high gate capacitor, as TrenchMos. The gate driver theoretically only provides the power dissipated by the internal power MOSFET gate resistance. This gate driver is dedicated to high frequency resonant converter with a 0.5 duty cycle

Keywords

bridge circuits; driver circuits; power MOSFET; power capacitors; resonant power convertors; switching convertors; voltage regulators; 20 W; 3 MHz; 3.3 V; 48 V; TrenchMos; bridge switches; energy recovery; gate capacitors; power MOSFET gate drivers; power dissipation; resonant converter; Bridges; Capacitors; Frequency conversion; Insulation; MOSFET circuits; Power MOSFET; Resonance; Resonant frequency; Switches; Switching converters; Efficiency; High frequency power converter; Insulated gate driver; Resonant converter; Trench MOSFET;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Applications, 2005 European Conference on

Conference_Location

Dresden

Print_ISBN

90-75815-09-3

Type

conf

DOI

10.1109/EPE.2005.219616

Filename

1665806