Abstract: A switching circuit includes two power transistors (22, 24) connected in series and a circuit (26, 28) for exciting each transistor suitable for simultaneously switching the two transistors. The circuit includes elements (30) for generating a corrective current (?i) for controlling a corrected-control transistor (22) among the two transistors (22, 24) according to the difference in temporal variation of the voltage at the conduction terminals of the two series-connected transistors (22, 24), and elements (37) for applying the current to the gate electrode of the corrected-control transistor (22).

Abstract: A switching circuit includes two power transistors (22, 24) connected in series and a circuit (26, 28) for exciting each transistor suitable for simultaneously switching the two transistors. The circuit includes elements (30) for generating a corrective current (?i) for controlling a corrected-control transistor (22) among the two transistors (22, 24) according to the difference in temporal variation of the voltage at the conduction terminals of the two series-connected transistors (22, 24), and elements (37) for applying the current to the gate electrode of the corrected-control transistor (22).

Abstract: A method is provided for controlling cold rolling of a sheet metal strip involving continuously passing the strip in at least two successive rolling stands, each stand including at least two driven rolls between which the strip moves and is plated. The method includes estimating the sliding variation in output of one rolling stand; and correcting the rotation speed of the rolls of at least one corrected rolling stand based on the estimated sliding variation.

Abstract: The invention relates to an energy system using as fuel natural gas stored in liquid form in at least one tank containing liquefied natural gas, the system comprising a feeder device provided with a heater device for heating liquefied natural gas and/or natural gas vapor, and making use of a thermoelectric power unit including rotary electrical machines, the system further comprises a first heat exchanger system associated with a cooler device for cooling the rotary electrical machines, and a second heat exchanger system associated with the heater device, the first heat exchanger system being coupled to the second heat exchanger in order to enable heat to be transferred from the cooler device to the heater device.