Active gate drive circuit

A gate drive circuit and a method for controlling a gate-controlled component (30), the gate drive circuit comprising a PI controller (31) adapted to receive an input reference signal (v ref,d/dt ) and to control a gate voltage of the gate-controlled component. The gate drive circuit further compris...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: LAITINEN, MATTI, KOLAR, JOHANN WALTER, LOBSIGER, YANICK
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:A gate drive circuit and a method for controlling a gate-controlled component (30), the gate drive circuit comprising a PI controller (31) adapted to receive an input reference signal (v ref,d/dt ) and to control a gate voltage of the gate-controlled component. The gate drive circuit further comprises a first feedback loop for the PI controller (31) adapted to provide feedback from a time derivative of a collector-to-emitter voltage (v CE ) of the controlled component (30), the first feedback loop comprising first gain (k v ), a second feedback loop for the PI controller (31) adapted to provide feedback from the time derivative of the collector current (i C ) of the controlled component (30), the second feedback loop comprising second gain (k i ), wherein the second feedback loop comprises a clipping circuit (32) adapted to modify the feedback signal in the second feedback loop during turn-on of the controlled component (30) when the time derivative of the collector current is negative.