Method of switching and switching device for solid state power controller applications

Method of switching and switching device for solid state power controller applications

A solid state switching device (SSSD) for AC and DC high power solid state power controller includes, for DC applications, a MOSFET and an IGBT connected in parallel and an optional zener diode connecting a collector and a gate of the IGBT. For AC applications, the SSSD includes a "back to back...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: FULLER, RANDY, ZHENNING, LIU
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
PULSE TECHNIQUE
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Beschreibung
Zusammenfassung:A solid state switching device (SSSD) for AC and DC high power solid state power controller includes, for DC applications, a MOSFET and an IGBT connected in parallel and an optional zener diode connecting a collector and a gate of the IGBT. For AC applications, the SSSD includes a "back to back" pair of MOSFETs connected in parallel with a pair of counter-parallel IGBTs, each in series with a diode, and, optionally, zener diodes "back to back" with conventional diodes connecting a collector and a gate of each of the IGBT. A method of switching establishes a sequence of turning on/off the MOSFET(s) and the IGBT(s) wherein the IGBT(s) turn on before and turn off after the MOSFET(s). A negative feedback prevents a voltage of SSSD rising above predetermined level.