Control Circuit
AssigneeABB Industry Oy
InventorErkki Miettinen
Life of this patent
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Abstract
A control circuit for controlling a semiconductor component (2) comprising an emitter (E), a collector (C) and a gate (G), the control circuit comprising a gate driver (GD) the output of which is connected to the gate (G) of the semiconductor component to be controlled. The control circuit further comprises a resistance coupling (1) where two series connections of a diode (V1, V2) and a resistor (R1, R2) are in an antiparallel connection and connected between the emitter (E) of the semiconductor component (2) and the zero potential (Com) of the gate driver (GD), and a feedback capacitor (C1) connected between the collector (C) of the semiconductor component (2) and the end of the resistance coupling (1) connected to the zero potential (Com) of the gate driver.
Claims3
A control circuit for controlling a semiconductor component comprising an emitter, a collector and a gate, the control circuit comprising a gate driver the output of which is connected to the gate of the semiconductor component to be controlled, wherein the control circuit further comprises
- a resistance coupling including two series connections of a diode and a resistor in an antiparallel connection between the emitter of the semiconductor component and a zero potential of the gate driver;
- and
- a feedback capacitor connected between the collector of the semiconductor component and to the resistance coupling connected to the zero potential of the gate driver.
Dependencies are inferred from the claim text.