Failure protection in power modules with auxiliary-emitter bondwires

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

1 Citation (Scopus)

Abstract

This paper provides a proof-of-concept for how auxiliary-emitter resistors (or auxiliary-source resistors in MOSFETs) can be used as sensors that accurately detect when a power module has reached the end of its life, and thus avoid catastrophic failure. Use of auxiliary-emitter resistors in this way allows failures to be detected in under one switching cycle. In addition, the auxiliary-emitter resistor ensures that gate control is maintained even after complete lift-off of the power bondwires. These two features permit instant implementation of a fault control strategy in order to avoid power module explosion. Conversely, if an auxiliary-emitter resistor is not included, gate control is lost and the module completely fails through thermal overload or gate latch-up within seconds.
Original languageEnglish
Title of host publicationPCIM Europe 2018; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
Number of pages6
PublisherVDE VERLAG
Publication dateJan 2018
Pages1051-1056
ISBN (Print)978-3-8007-4646-0
Publication statusPublished - Jan 2018
EventInternational Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, PCIM Europe 2018 - Nuremberg, Germany
Duration: 5 Jun 20187 Jun 2018

Conference

ConferenceInternational Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, PCIM Europe 2018
CountryGermany
CityNuremberg
Period05/06/201807/06/2018

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