Driver circuit for IGBT driver chip

The invention belongs to the technical field of electronic circuits, and specifically relates to a driver circuit for an IGBT driver chip. According to the driver circuit which is mainly based on the conventional circuit, grid stray capacitance is relatively high having several thousands of PF or ev...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	MING XIN, WANG YANLONG, ZHANG BO, YUAN CHAO, LU XINQIU, WANG ZHUO
Format:	Patent
Sprache:	eng
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 ELECTRICITY GENERATION
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The invention belongs to the technical field of electronic circuits, and specifically relates to a driver circuit for an IGBT driver chip. According to the driver circuit which is mainly based on the conventional circuit, grid stray capacitance is relatively high having several thousands of PF or even over ten thousands of PF according to characteristics of high threshold voltage of IGBT, so that higher current is required for charging; the driver circuit for the IGBT driver chip can ensure that the IGBT grid voltage can be rapidly charged to the threshold voltage point, and can ensure that higher dVge/dt and dic/dt are not generated by the IGBT within the time of t1 to t3 as well, so that the reliability of the IGBT can be effectively ensured, and the starting speed of the IGBT is accelerated as well; and therefore, overhigh dVge/dt and dic/dt can be effectively prevented according to the characteristics of the IGBT to prevent the power-on peak current and the turned-off peak voltage from being overhigh.