Title :
Considerations for a Digital Gate Unit in high power applications
Author :
Kuhn, H. ; Koneke, T. ; Mertens, A.
Author_Institution :
Inst. for Drive Syst. & Power Electron. - IAL, Leibniz Univ. Hannover, Welfengarten
Abstract :
Gate units of todaypsilas converters are in most cases voltage sources charging the input capacitance with a fixed gate resistor. In some publications, fixed current sources are implemented to support the charging process with a supplementary gate current. These solutions are implemented in an analog way and are designed and respectively optimized for fixed parameters and devices. During operation, there is no adaption process to adjust the switching transients to their actual optimum. The possibilities to implement new features or to adapt the units for a different device are related with time and effort.
Keywords :
power convertors; power semiconductor switches; switching transients; IGBT switches; charging process; digital gate unit; fixed current sources; fixed gate resistor; power converters; switching transients; voltage sources; Capacitance; Circuit testing; Delay effects; Insulated gate bipolar transistors; Power electronics; Power semiconductor switches; Power system transients; Semiconductor diodes; Threshold voltage; Voltage control;
Conference_Titel :
Power Electronics Specialists Conference, 2008. PESC 2008. IEEE
Conference_Location :
Rhodes
Print_ISBN :
978-1-4244-1667-7
Electronic_ISBN :
0275-9306
DOI :
10.1109/PESC.2008.4592367