Controlling method of a transistor of type IGBT and associated controlling device
AssigneeAlstom Transport Technologies
InventorsFlorent Andrianoelison, Eric Rabasse, Stephane Boisteau
Life of this patent
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Abstract
This method for controlling an IGBT-type transistor includes a phase for switching the transistor between an on state and an off state. Said phase comprises generating a setpoint current whereof the intensity on the gate of the transistor assumes different setpoint values. At least some of the setpoint values are chosen as a function of the sign of the temporal derivative of the main current. Each setpoint value is chosen from a set of predetermined setpoint values.
Claims10
A control method for a transistor of the IGBT type, the transistor comprising a gate, a collector and an emitter, and defining an on state in which a main current flows between the collector and the emitter and an off state in which the collector is electrically isolated from the emitter;
- the method including a phase for switching between the on state and the off state comprising generating a setpoint current, the intensity of which on the gate of the transistor assumes different setpoint values, at least some of the setpoint values being chosen as a function of the sign of the temporal derivative of the main current, each setpoint value being chosen from a set of predetermined setpoint values.
A control device for a transistor of the IGBT type, the transistor comprising a gate, a collector and an emitter, and defining an on state in which a main current flows between the collector and the emitter and an off state in which the collector is electrically isolated from the emitter;
- the device being able to generate a setpoint current, the intensity of which on the gate of the transistor assumes different setpoint values, at least some of the setpoint values being chosen as a function of the sign of the temporal derivative of the main current, each setpoint value being chosen from a set of predetermined setpoint values.
Dependencies are inferred from the claim text.