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Abstract
The use of a kelvin-source (sometimes referred to as an auxiliary-source) terminal is becoming common in fast switching semiconductors such as Silicon Carbide MOSFETs. The kelvin-source terminal decouples the path of the load current from the path of the control current, leading to improved switching characteristics. However, in multiple paralleled chips, kelvin-source connections sometimes lead to load current imbalances among the bondwires of each paralleled chip. A simple method to prevent this is to introduce kelvin-source resistors. This paper investigates the sizing of kelvin-source resistors and their subsequent impact on current balancing. This investigation has primarily been conducted in the context of using the kelvin-source resistor as a failure detection sensor. We find that a kelvin-source resistor of 0.5Ω to 1Ω is adequate for current balancing purposes, however for dual purpose use as a failure sensor, a value of 2Ω or more may be recommended.
Original language | English |
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Title of host publication | Proceedings of the 2018 20th European Conference on Power Electronics and Applications, EPE'18 ECCE Europe |
Number of pages | 7 |
Publisher | IEEE Press |
Publication date | Sept 2018 |
Pages | 1-7 |
Article number | 8515541 |
ISBN (Print) | 978-1-5386-4145-3 |
ISBN (Electronic) | 978-9-0758-1528-3 |
Publication status | Published - Sept 2018 |
Event | 20th European Conference on Power Electronics and Applications, EPE 2018 ECCE Europe - Riga, Latvia Duration: 17 Sept 2018 → 21 Sept 2018 |
Conference
Conference | 20th European Conference on Power Electronics and Applications, EPE 2018 ECCE Europe |
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Country/Territory | Latvia |
City | Riga |
Period | 17/09/2018 → 21/09/2018 |
Keywords
- Packaging
- Power Semiconductor Device
- Reliability
Fingerprint
Dive into the research topics of 'Impact of Kelvin-Source Resistors on Current Sharing and Failure Detection in Multichip Power Modules'. Together they form a unique fingerprint.Projects
- 1 Finished
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Center Of Reliable Power Electronics (CORPE)
Blaabjerg, F., Munk-Nielsen, S., Pedersen, K. & Popok, V.
01/04/2011 → 31/12/2016
Project: Research