1700V Fully Coreless Gate Driver with Rugged Signal Interface and Switching-Independent Power Supply

Author

Pawel, Sascha ; Thalheim, Jan

Author_Institution

CT-Concept Technol. Ltd., Biel

fYear

2008

Firstpage

319

Lastpage

322

Abstract

- This paper describes development and implementation of gate drive ICs that rely exclusively on external coreless transformers. Both, signal and continuous power are transferred via coreless transformers. The newly developed "double pulse" signal transmission scheme facilitates save switching under voltage transients higher than 95 V/ns. Reliability of the planar insulation on the printed circuit board is found to be as good as for conventional ring core molding, or better. Dedicated layer buildup and material selection prevents insulation failure due to formation of conductive anodic filaments.

Keywords

driver circuits; integrated circuit reliability; printed circuits; switched mode power supplies; conductive anodic filaments; conventional ring core molding; coreless gate driver; double pulse signal transmission; external coreless transformers; gate drive integrated circuits; planar insulation; printed circuit board; signal interface; switching-independent power supply; voltage transients; Delay effects; Driver circuits; Ferrites; Magnetic cores; Power supplies; Power transformer insulation; Printed circuits; Reproducibility of results; Resonance; Transformer cores;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Semiconductor Devices and IC's, 2008. ISPSD '08. 20th International Symposium on

Conference_Location

Orlando, FL

Print_ISBN

978-1-4244-1532-8

Electronic_ISBN

978-1-4244-1533-5

Type

conf

DOI

10.1109/ISPSD.2008.4538963

Filename

4538963