Gate drive circuitry
OwnerJeffrey A. Reichardinventor
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Abstract
Circuitry includes control logic circuitry, switching circuitry, and a signal transmission path. The control logic circuitry is adapted to provide a first control signal for controlling switching characteristic of and for supplying power to the switching circuitry. The switching circuitry has an input for receiving the first control signal and an output for providing a second control signal to the power semiconductor device. The signal transmission path is configured to carry the first control signal from the control logic circuitry to the input of the switching circuitry and power for the switching circuitry.
Claims27
Circuitry for controlling a power semiconductor device, the circuitry comprising:
- switching circuitry having an input for receiving a first control signal and an output for providing a second control signal to the power semiconductor device;
- control logic circuitry adapted to provide the first control signal for controlling switching characteristics of and for supplying power to the switching circuitry;
- and
- a signal transmission path configured to carry the first control signal from the control logic circuitry to the input of the switching circuitry and power for the switching circuitry.
A method for controlling a power semiconductor device, the method comprising:
- generating a first control signal using a control logic circuitry;
- sending the first control signal to a switching circuitry via a signal transmission path that provides electric isolation between the control logic circuitry and the switching circuitry;
- generating a second control signal from the first control signal using the switching circuitry;
- supplying electric power from the first control signal in order to power the switching circuitry;
- controlling the power semiconductor device using the second control signal.
Dependencies are inferred from the claim text.