Title
Gate driver with 10 / 15ns in-transition variable drive current and 60% reduced current dip.
Abstract
In various fields, there is a growing need for electric motor drives and inductive power converters. To achieve better switching behavior and lower EME in inductive switching applications, very precise gate control of the power MOSFETs by the gate driver is required. The driver presented in this paper can operate at voltages up to 60V, and it is able to change the gate current in 10 / 15ns (rise / fall delay) within a range of 20mA to 500mA. Achieved by a class B buffer in the output stage, this enables multiple current changes in a 100ns switching transition. A dip in the output current, caused by parasitic capacitances, is reduced from 80% of the full scale current to 20% by a cascode configuration in the driver output stage. The gate voltage is clamped to 11.5V, with a precise clamping circuit to reduce R-DS,R-on with the full gate current, but without stressing the gate oxide with any over voltage. By fully integrating this concept in 130nm HV-BiCMOS, a reduction in external components for limiting overshoot, stress and EME can be achieved.
Year
Venue
Field
2016
Proceedings of the European Solid-State Circuits Conference
Logic gate,Cascode,Computer science,Power MOSFET,Electronic engineering,NAND gate,Control engineering,NOR gate,Gate oxide,Electrical engineering,Gate equivalent,Gate driver
DocType
ISSN
Citations 
Conference
1930-8833
0
PageRank 
References 
Authors
0.34
1
5
Name
Order
Citations
PageRank
Alexis Schindler100.34
Benno Koeppl200.68
Ansgar Pottbaecker300.34
Markus Zannoth400.34
Bernhard Wicht5199.30