CONTROL CIRCUITRY FOR POWER SEMICONDUCTOR SWITCHES USING CONTROL SIGNAL FEEDBACK

An apparatus includes a power semiconductor switch, a driver circuit configured to drive a control terminal of the power semiconductor switch, and a control circuit configured to apply a control signal to the driver circuit responsive to a comparison of a reference voltage to a voltage at the contro...

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Bibliographische Detailangaben
Hauptverfasser: NOJIMA, Geraldo, WILKIE, Eddie
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:An apparatus includes a power semiconductor switch, a driver circuit configured to drive a control terminal of the power semiconductor switch, and a control circuit configured to apply a control signal to the driver circuit responsive to a comparison of a reference voltage to a voltage at the control terminal of the semiconductor switch. In some embodiments, the power semiconductor switch may include a field effect transistor (FET), such as a wide bandgap silicon carbide (SiC) MOSFET. The control terminal may include a gate terminal of the FET, and the voltage at the control terminal may include a gate voltage.