A circuit, comprising: a first output, the first output arranged for providing a control signal to a control terminal of a first transistor; a voltage-to-current converter including a first input coupled to the first output, a second input arranged for coupling to a current terminal of the first transistor, a second output arranged for providing an indication of a control-terminal to current-terminal voltage of the first transistor, and a second transistor having a control terminal configured to be directly coupled to the first current terminal of the first transistor and a first current terminal directionally coupled to the first output through a first resistive element; and control circuitry configured for controlling current applied to the first output, wherein the control circuitry includes a third input arranged to receive the indication of the control-terminal to current-terminal voltage of the first transistor for use in controlling the current applied to the first output, and a current comparator, wherein the control circuitry is configured to reduce charging current provided to the first output based on the comparison by the current comparator of the indication of the control-terminal to current-terminal voltage of the first transistor indicating a higher control-terminal to current-terminal voltage of the first transistor than a first voltage; wherein the control circuitry includes a reference current circuit that is configured to generate a reference current (I REF) indicative of the first voltage; wherein the voltage-to-current converter is configured to produce a measuring current (I M) indicative of the control-terminal to current-terminal voltage of the first transistor, said measuring current being said indication of the control-terminal to current-terminal voltage of the first transistor, wherein the current comparator is configured to compare the reference current (I REF) with the measuring current (I M) and the control circuitry is configured to reduce a charging current to the first output based on the comparison of the reference current (I REF) and the measuring current (I M); and wherein the reference current circuit includes a third transistor having a control terminal directly coupled to a second power supply terminal and a first current terminal directionally coupled to a voltage terminal through a second resistive element, wherein the first resistive element and the second resistive element are a same size and device type and the second transistor and the third transistor are a same size and device type. a first output, the first output arranged for providing a control signal to a control terminal of a first transistor; a voltage-to-current converter including a first input coupled to the first output, a second input arranged for coupling to a current terminal of the first transistor, a second output arranged for providing an indication of a control-terminal to current-terminal voltage of the first transistor, and a second transistor having a control terminal configured to be directly coupled to the first current terminal of the first transistor and a first current terminal directionally coupled to the first output through a first resistive element; and control circuitry configured for controlling current applied to the first output, wherein the control circuitry includes a third input arranged to receive the indication of the control-terminal to current-terminal voltage of the first transistor for use in controlling the current applied to the first output, and a current comparator, wherein the control circuitry is configured to reduce charging current provided to the first output based on the comparison by the current comparator of the indication of the control-terminal to current-terminal voltage of the first transistor indicating a higher control-terminal to current-terminal voltage of the first transistor than a first voltage; wherein the control circuitry includes a reference current circuit that is configured to generate a reference current (I REF) indicative of the first voltage; wherein the voltage-to-current converter is configured to produce a measuring current (I M) indicative of the control-terminal to current-terminal voltage of the first transistor, said measuring current being said indication of the control-terminal to current-terminal voltage of the first transistor, wherein the current comparator is configured to compare the reference current (I REF) with the measuring current (I M) and the control circuitry is configured to reduce a charging current to the first output based on the comparison of the reference current (I REF) and the measuring current (I M); and wherein the reference current circuit includes a third transistor having a control terminal directly coupled to a second power supply terminal and a first current terminal directionally coupled to a voltage terminal through a second resistive element, wherein the first resistive element and the second resistive element are a same size and device type and the second transistor and the third transistor are a same size and device type.