Welcome to Modern IGBT Gate Driving Methods for Enhancing Reliability of Power Converters

Description: After almost three decades of development, Insulated Gate Bipolar Transistors (IGBTs) are widely used in many high-power industrial applications. The reliability issues have been studied by employing solutions in active and passive components, mechanical structures, packaging designs and control strategies. Meanwhile, the complex and harsh working conditions are demanding for higher reliability of the power conversion systems. Along with the development of IGBT modules, gate drivers have been improved dramatically over the years, significantly contributing to reliability improvement. In fact, as an important interface between IGBT modules and controllers, modern gate drivers do not only can provide optimal switching signals, but also monitor the operation status of IGBT modules themselves. In particular, benefiting from the understanding of semiconductor behavior matured over the years, both wear status and abnormal events can be monitored and detected, respectively, thanks to modern IGBT gate driver technologies. This course has presented an overview of state-of-the-art advanced gate driver techniques for enhancing reliability of IGBT modules. Broadly speaking, methods can be classified in detection methods, optimization methods and protection methods.

The course will cover the following lectures:

L1: Basic IGBT gate driving concepts

(a) Voltage-source gate drivers
(b) Current-source gate drivers
(c) Optimization and protection principles
L2: Fault detection and protection methods

(a) Voltage and current overshoot
(b) Overload and short circuit
(c) Gate voltage limitation
L3: Active gating methods for enhancing switching characteristics

(a) Closed-loop control methodology
(b) Closed-loop control implementations
L4: Active thermal control methods using IGBT gate driver

(a) Principles for thermal mitigation method
(b) Thermal mitigation methods
(c) Junction temperature estimation methods Prerequisites: Basic knowledge of power device and power converter operation
Form of evaluation: The participants will be grouped in teams of 4-5 people and asked to design an original gate driver for a given application. Students will be asked to give a presentation at the end of the course, with a final evaluation of the contributio

Link: http://www.et.aau.dk/phd/phd-courses/

Organizer: Francesco Iannuzzo, fia@et.aau.dk

Lecturers: Professor Francesco Iannuzzo


Date: 9-10 September 2019

Place: Aalborg University

Zip code:


Number of seats: 30

Deadline: 19 August 2019

Important information concerning PhD courses We have over some time experienced problems with no-show for both project and general courses. It has now reached a point where we are forced to take action. Therefore, the Doctoral School has decided to introduce a no-show fee of DKK 5,000 for each course where the student does not show up. Cancellations are accepted no later than 2 weeks before start of the course. Registered illness is of course an acceptable reason for not showing up on those days. Furthermore, all courses open for registration approximately three months before start. This can hopefully also provide new students a chance to register for courses during the year. We look forward to your registrations.