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  4. Protection unit for wide bandgap power switching device and method for operating the wide bandgap power switching device
 
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Protection unit for wide bandgap power switching device and method for operating the wide bandgap power switching device

Dujic, Drazen  
•
Li, Chengmin  
2023

The invention relates to a method for operating a power switching device, particularly a wide bandgap power switching device, in a power application, particularly in a converter, comprising the steps of:- checking (S2) a transient voltage of or related to a voltage drop across the switching device (22, 23) against a predetermined first threshold (Vref1,UP, Vref1,LOW) ;- reducing (S3) conductivity of the switching device (22, 23) if it is determined that the value of the transient voltage exceeds the predetermined first threshold (Vref1,UP, Vref1,LOW);- after reducing the conductivity, checking (S4) the voltage drop across the switching device (22, 23);- deactivating (S5) the operation of the switching device (22, 23) if it is determined that the voltage drop is larger than a predetermined second threshold (Vref2,UP, Vref2,LOW).

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Type
patent
EPO Family ID

78806340

Author(s)
Dujic, Drazen  
•
Li, Chengmin  
Note

Alternative title(s) : (de) Schutzeinheit für eine leistungsschaltvorrichtung mit breiter bandlücke und verfahren zum betrieb der leistungsschaltvorrichtung mit breiter bandlücke (fr) Unité de protection pour un dispositif de commutation de puissance à large bande interdite et procédé de fonctionnement du dispositif de commutation de puissance à large bande interdite

TTO classification

TTO:6.2254

EPFL units
TTO  
DOICountry codeKind codeDate issued

EP4187787

EP

A1

2023-05-31

Available on Infoscience
June 5, 2023
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/198150
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