A circuit for turning off a power semiconductor switch, the circuit comprising: a turn-off transistor (364, 564) coupled to switch a signal (312, 512) for turning off the power semiconductor switch (104, 106, 304, 564, 561) onto a control terminal of the power semiconductor switch; a feedback control loop configured to control a voltage (330, 530) on the control terminal of the power semiconductor switch during turn-off, the feedback control loop comprising a feedback path configured to feedback a measurement of the voltage of the control terminal of the power semiconductor switch, a control terminal reference voltage generator configured to generate a time-dependent reference voltage (370, 570), an error amplifier (368, 568) configured to generate an error signal representative of a difference between the voltage of the control terminal and the time-dependent reference voltage, and a forward path configured to convey the error signal forward for controlling the switching of the signal for turning off the power semiconductor switch onto the control terminal of the power semiconductor switch by the turn-off transistor; characterised in that the circuit further comprises Miller plateau detection circuitry (369, 569) coupled to detect that the voltage of the control terminal of the power semiconductor switch is below a voltage level in a vicinity of the Miller plateau of the power semiconductor switch and output a signal indicative thereof, wherein the control terminal reference voltage generator is configured to increase a time rate of change of the time-dependent reference voltage in response to the signal indicative that the control terminal of the power semiconductor switch is below the voltage level in the vicinity of the Miller plateau. a turn-off transistor (364, 564) coupled to switch a signal (312, 512) for turning off the power semiconductor switch (104, 106, 304, 564, 561) onto a control terminal of the power semiconductor switch; a feedback control loop configured to control a voltage (330, 530) on the control terminal of the power semiconductor switch during turn-off, the feedback control loop comprising a feedback path configured to feedback a measurement of the voltage of the control terminal of the power semiconductor switch, a control terminal reference voltage generator configured to generate a time-dependent reference voltage (370, 570), an error amplifier (368, 568) configured to generate an error signal representative of a difference between the voltage of the control terminal and the time-dependent reference voltage, and a forward path configured to convey the error signal forward for controlling the switching of the signal for turning off the power semiconductor switch onto the control terminal of the power semiconductor switch by the turn-off transistor; characterised in that the circuit further comprises Miller plateau detection circuitry (369, 569) coupled to detect that the voltage of the control terminal of the power semiconductor switch is below a voltage level in a vicinity of the Miller plateau of the power semiconductor switch and output a signal indicative thereof, wherein the control terminal reference voltage generator is configured to increase a time rate of change of the time-dependent reference voltage in response to the signal indicative that the control terminal of the power semiconductor switch is below the voltage level in the vicinity of the Miller plateau.