Protection unit for wide bandgap power switching device and method for operating the wide bandgap power switching device
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).
78806340
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:6.2254
DOI | Country code | Kind code | Date issued |
EP4187787 | EP | A1 | 2023-05-31 |