Open AccessHybrid 3.3 kV/450 A half‐bridge IGBT power module with SiC Schottky barrier diodes
Author(s) -
Li Daohui,
Luo Haoze,
Huang Yue,
Li Xiang,
Qi Fang,
Packwood Matthew,
Luo Haihui,
Chen Ximing,
Li Chengzhan,
Wang Yangang,
Dai Xiaoping,
Liu Guoyou
Publication year - 2020
Publication title -
iet power electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.637
H-Index - 77
eISSN - 1755-4543
pISSN - 1755-4535
DOI - 10.1049/iet-pel.2019.0412
Subject(s) - insulated gate bipolar transistor , junction temperature , materials science , diode , flyback diode , power semiconductor device , schottky diode , optoelectronics , power module , silicon carbide , electrical engineering , rectifier (neural networks) , power (physics) , schottky barrier , chip , pin diode , inverter , voltage , computer science , engineering , boost converter , composite material , physics , stochastic neural network , quantum mechanics , machine learning , flyback converter , recurrent neural network , artificial neural network
This work presents a hybrid 3.3kV/450 A insulated‐gate bipolar transistor (IGBT) power module, utilising the half‐bridge topology. In contrast to the traditional fashion, each IGBT chip in this module is allocated with two anti‐parallel silicon carbide (SiC) Schottky barrier diodes (SBDs). Each SBD describes smaller footprint than the conventionally used silicone (Si) based fast recovery diode at this voltage and current level. By adopting smaller SiC SBDs in this hybrid‐style packaging structure, the SBD chip yield can be greatly improved, without any additional fabrication cost. To benchmark the advantages of this hybrid power module over the Si‐based counterpart, both power modules are designed, fabricated as well as tested statically and dynamically. It is shown that while both types show similar thermal behaviour, the hybrid power module describes much lower IGBT turn‐on current overshooting, diode reverse recovery loss and IGBT turn‐on loss. Based on the measured results, the power losses of both modules under a three‐phase inverter operation condition are calculated, showing that the hybrid module has considerably lower power losses and junction temperature rise.