The present invention concerns a circuit for converting a first control signal referenced to a first potential into a second signal referenced to a second variable potential, including: a first transistor between a first terminal for supplying said second signal and a second terminal at said second variable potential; and at least one first branch including, in series between a gate of the first transistor and a third terminal at said first potential, a second transistor, a first resistive element, and a third transistor, a gate of the third transistor being intended to receive the first signal and a gate of the second transistor being coupled to the second terminal, the gate of the second transistor being further coupled, by a first clipping element, to its source.