Abstract: A method discharges the electrical circuit of a vehicle including at least one traction electric machine and equipped with an electrical supply network including a high-voltage battery and a hydrogen-fuel-cell stack that is associated with a voltage converter, with a high-voltage consumption network including the machine associated with an inverter and appended pieces of equipment, and with a drive module. The discharging method includes the following successive steps: stopping the vehicle, electrically disconnecting the battery from the network, interrupting the supply of hydrogen to the stack, and discharging energy from the electrical circuit into the stator winding of the machine by driving the voltage converter via the drive module.

Abstract: A battery charger is for a motor vehicle that includes a primary electrical power converter and a secondary electrical power converter connected by a transformer. The charger includes: a compensating primary electrical power converter, having a high-frequency switching stage connected at the output to the transformer; a filter capacitor connected between two input terminals of the high-frequency switching stage of the compensating primary converter; a compensating secondary electrical power converter connected to the compensating primary converter via the transformer; and a switchable storage capacitor connected between the two input terminals of the high-frequency switching stage of the compensating primary converter. The compensating secondary electrical power converter and the high-frequency switching stage of the primary compensation converter charge or discharge the storage capacitor as a function of an instantaneous power setpoint.

Abstract: The present description concerns a method of controlling a converter including two H bridges (110, 12) coupled by a transformer (130), wherein: two switching sequences between states are respectively applied to the two bridges; one of the states of a first one of the sequences corresponds to a given direction of application of a voltage to the transformer by the bridge having the first one of the sequences applied thereto; the first one of the sequences varies during a same halfwave of an AC voltage (V1) across one of the bridges (110), so that: during at least a first period, switchings into and out of said one of the states occur in a same state of a second one of the sequences; and during at least a second period, switchings into and out of said one of the states occur in different states of the second one of the sequences.

Abstract: The invention concerns a heterojunction field-effect transistor comprising a stack of first and second III-N type semiconducting layers forming an electron gas or hole layer; a first conduction electrode in electrical contact with the gas layer and a second conduction electrode; a separation layer positioned vertically in line with the first electrode and under the second semiconducting layer; a third semiconducting layer arranged under the separation layer and in electrical contact with the second electrode; a conductive element in electrical contact with the gas layer and electrically connecting the third semiconducting layer and the gas layer; and a control gate positioned between the conductive element and the first conduction electrode.

Abstract: The present description concerns a method of controlling a converter including two H bridges (110, 12) coupled by a transformer (130), wherein: repetitions of two switching sequences between a plurality of states are respectively applied to the two bridges; and the two sequences are generated from a same value representative of an interval between switching times of the two sequences, said same value being selected according to whether a ratio between the respective voltages across the H bridges is greater or smaller than a transformation ratio (n) of the transformer.

Abstract: The present description concerns a method of controlling a converter including two H bridges (110, 12) coupled by a transformer (130), wherein: two switching sequences between states are respectively applied to the two bridges; one of the states of a first one of the sequences corresponds to a given direction of application of a voltage to the transformer by the bridge having the first one of the sequences applied thereto; the first one of the sequences varies during a same halfwave of an AC voltage (V1) across one of the bridges (110), so that: during at least a first period, switchings into and out of said one of the states occur in a same state of a second one of the sequences; and during at least a second period, switchings into and out of said one of the states occur in different states of the second one of the sequences.

Abstract: The present description concerns a method of controlling a converter (100) including two H bridges (110, 120) coupled by a transformer (130), wherein: repetitions of two switching sequences between a plurality of states are respectively applied to the two bridges; the switchings of the sequences occur at times resulting from calculations based on a desired equality between values of a current in the transformer at one of said times of one of the two sequences and at one of said times of the other one of the two sequences; and for each one of said calculations, a constant frequency, common to said repetitions and identical for the two bridges, is selected prior to the calculations.

Abstract: An electronic device including: a discrete transistor including a semiconductor chip encapsulated in a package made of an insulating material leaving access to a first pad of connection to a first conduction terminal of the transistor; and a printed circuit board (320) including first (125) and second (129) separate connection pads, wherein the transistor is assembled on the printed circuit board so that the first connection pad (105) of the transistor is in contact with the first (125) and second (129) connection pads of the printed circuit board.

Abstract: The invention concerns a heterojunction field-effect transistor comprising a stack of first and second III-N type semiconducting layers forming an electron gas or hole layer; a first conduction electrode in electrical contact with the gas layer and a second conduction electrode; a separation layer positioned vertically in line with the first electrode and under the second semiconducting layer; a third semiconducting layer arranged under the separation layer and in electrical contact with the second electrode; a conductive element in electrical contact with the gas layer and electrically connecting the third semiconducting layer and the gas layer; and a control gate positioned between the conductive element and the first conduction electrode.

Abstract: An electronic device including: a discrete transistor including a semiconductor chip encapsulated in a package made of an insulating material leaving access to a first pad of connection to a first conduction terminal of the transistor; and a printed circuit board (320) including first (125) and second (129) separate connection pads, wherein the transistor is assembled on the printed circuit board so that the first connection pad (105) of the transistor is in contact with the first (125) and second (129) connection pads of the printed circuit board.

Abstract: An electric motor assembly includes a multi-phase electric motor, a battery of accumulators, an inverter configured to convert the direct current of the battery into multi-phase alternating current adapted to supply the motor, and a connection housing. The connection housing includes plugs allowing connection of motor phases, the battery terminals, and at least five connections to the inverter. The housing further includes a group of contacts allowing it to be connected to a single phase mains system, and a group of contacts allowing it to be connected a multi-phase mains system. The housing includes switches according to the position of which the system including the housing, the battery, the inverter, and the motor connected solely by its phases, alternatively allows the motor to be supplied from the battery, the battery to be recharged directly from a single-phase mains system, and the battery to be recharged from multi-phase mains system.

Abstract: A device for generating electric power of a traction system of a motor vehicle powered by a battery, including a first rectifier stage configured to be connected to a power supply network or to a load to be powered, a second inverter stage configured to be connected to the battery, a mechanism regulating average current flowing between the first stage and the second stage, and a controller controlling a transfer of electric power between the power supply network and the battery or the powering of a load.

Abstract: A device for charging a battery including a rectifier input stage configured to be connected to a power supply network and an inverter output stage configured to be connected to the battery, and a mechanism regulating average current obtained from the input stage about a current value generated from the maximum current supplied by the power supply network and according to a coefficient that is at least equal to a ratio between the maximum voltage rectified by the input stage and the battery voltage.

Abstract: An interconnection housing for a motor vehicle, including connection terminals for a battery and connection terminals for an inverter. The housing includes connection terminals for an external electric power supply and outlets for connection to an AC electric motor, such that the battery can be recharged when the external power supply, the inverter, the electric motor, and the battery are all connected simultaneously to the interconnection housing.

Abstract: Method for regulating the temperature of an automotive vehicle component comprising an inductive system for charging an electric battery, the inductive charging system including a coil allowing a magnetic energy to be converted into an electrical energy for charging the battery, the method involving a step of using the thermal energy produced in the coil via the Joule effect to heat the automotive vehicle component, notably a cabin of an automotive vehicle.

Abstract: A device for charging a battery including a rectifier input stage configured to be connected to a power supply network and an inverter output stage configured to be connected to the battery, and a mechanism regulating average current obtained from the input stage about a current value generated from the maximum current supplied by the power supply network and according to a coefficient that is at least equal to a ratio between the maximum voltage rectified by the input stage and the battery voltage.

Abstract: A device for controlling a power shunt circuit of a hybrid vehicle, including inverters, including DC sides linked to a DC voltage storage unit and AC sides intended to be linked to polyphase electrical machines. The polyphase electrical machines are able to operate in engine/engine or generator/generator modes. A control unit controls chopping switches of the second inverter in a way that is temporally offset relative to chopping switches of the first inverter in such a case, the control unit of the inverters controlling their chopping switches by pulse width vector modulation.

Abstract: An electric motor assembly includes a multi-phase electric motor, a battery of accumulators, an inverter configured to convert the direct current of the battery into multi-phase alternating current adapted to supply the motor, and a connection housing. The connection housing includes plugs allowing connection of motor phases, the battery terminals, and at least five connections to the inverter. The housing further includes a group of contacts allowing it to be connected to a single phase mains system, and a group of contacts allowing it to be connected a multi-phase mains system. The housing includes switches according to the position of which the system including the housing, the battery, the inverter, and the motor connected solely by its phases, alternatively allows the motor to be supplied from the battery, the battery to be recharged directly from a single-phase mains system, and the battery to be recharged from multi-phase mains system.

Abstract: An electric energy exchange system between at least one motor-generator system and at least one storage member determining a continuous storage voltage between two branches of a bus circuit on which are connected in parallel a DC/DC converter, a filtering capacity, and a DC/AC converter connected on at least one motor-generator system. The system includes at least one thyristor connected as a bypass on the positive bus between the storage member and the output of the converter-voltage raiser to short-cut the converter, and a thyristor priming device to, based on the required voltage at the filtering capacity, determine at least in discharge the shorting of the converter-voltage raiser with direct passage of the current through the thyristor as long as the voltage of the filtering capacity, which is substantially equal to the storage member voltage, is sufficient for the electric machines to provide requested torque.

Abstract: An interconnection housing for a motor vehicle, including connection terminals for a battery and connection terminals for an inverter. The housing includes connection terminals for an external electric power supply and outlets for connection to an AC electric motor, such that the battery can be recharged when the external power supply, the inverter, the electric motor, and the battery are all connected simultaneously to the interconnection housing.