Title :
A comparison of fundamental gate-driver topologies for high frequency applications
Author :
Strydom, J.T. ; de Rooij, M.A. ; van Wyk, J.D.
Author_Institution :
International Rectifier, El Segundo, CA, USA
Abstract :
The gate-driver in most power electronic converters is seldom given sufficient attention during the design stage even though it is the circuit exposed to much of the same voltage stresses as the switching devices and yet despite this, is a crucial component to a sound functioning system. At higher switching frequencies, and either low power or high voltage applications, the effect of the gate-driver on the overall converter performance becomes even more pronounced. When considering a gate-driver for a power electronic system, the converter topology, operating conditions and requirements, voltage and current ratings, and switching frequency determines the suitability and applicability of a chosen gate-driver to the application. This paper discusses different gate-drivers, represented by three fundamental gate-driver topologies that are evaluated in terms of suitable operating conditions, construction and losses. These gate-drivers, constructed using two different methods, a hybrid and SMD, also forms part of the evaluation. In addition, some of the issues as switching frequencies keep increasing is also addressed.
Keywords :
constant current sources; driver circuits; network topology; power convertors; surface mount technology; converter performance; converter topology; current source topology; high frequency applications; power electronic converters; resonant gate-driver topologies; switching devices; switching frequencies; voltage source topology; voltage stresses; Circuit topology; Design engineering; Laboratories; Power conversion; Power electronics; Rectifiers; Resonance; Switching converters; Switching frequency; Voltage;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2004. APEC '04. Nineteenth Annual IEEE
Print_ISBN :
0-7803-8269-2
DOI :
10.1109/APEC.2004.1295951