Active avalanche protection for flyback converter

The present document relates to power converters. In particular, the present document relates to the protection of the power switches of power converters. A controller (306) configured to control a switched-mode power converter (305) is described. The controller (306) comprises a control pin for con...

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Bibliographische Detailangaben
Hauptverfasser:	WEINACHT, MANFRED, KNOEDGEN, HORST
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERATION
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	The present document relates to power converters. In particular, the present document relates to the protection of the power switches of power converters. A controller (306) configured to control a switched-mode power converter (305) is described. The controller (306) comprises a control pin for controlling a state of a power switch (202) of the switched-mode power converter (305) using a control signal (232); and a sensing pin for receiving a sensed current signal (233) indicative of a current through the power switch (202). The controller (306) is configured to detect a break-through situation of the power switch (202) based on the state of the power switch (202) and based on the sensed current signal (233).