Failure protection in power modules with auxiliary-emitter bondwires

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Abstrakt

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.
OriginalsprogEngelsk
TitelPCIM Europe 2018; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
Antal sider6
ForlagVDE VERLAG
Publikationsdatojan. 2018
Sider1051-1056
ISBN (Trykt)978-3-8007-4646-0
StatusUdgivet - jan. 2018
BegivenhedInternational Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, PCIM Europe 2018 - Nuremberg, Tyskland
Varighed: 5 jun. 20187 jun. 2018

Konference

KonferenceInternational Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, PCIM Europe 2018
LandTyskland
ByNuremberg
Periode05/06/201807/06/2018

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