Abstract: A switching system is disclosed having a switching arm with a high-side switch and a low-side switch. A control system switches the switching arm alternately between a first configuration, in which the high-side switch is open and the low-side switch is closed, and a second configuration, in which the high-side switch is closed and the low-side switch is open. The control system commands, for each switching operation, the opening of the switch that is initially closed, and then, at the end of a dead time, commands the closure of the switch that is initially open. The system has device for measuring a switch voltage present between the terminals of one of the switches. For each switching operation, the control system, following the command to open the switch initially closed, monitors the measured switch voltage, and determine the dead time for the switching operation based on the monitored switch voltage.

Abstract: An electrical circuit includes a MOSFET and an electronic driver circuit for driving the MOSFET, having four pins, the electrical circuit including at least one electrical track to which the MOSFET is connected by a bond wire having an intrinsic inductance. The electronic driver circuit is connected to the MOSFET by a first terminal directly linked to the first source and, in parallel, by a second terminal linked to the second source. The bond wire is arranged between the second terminal and the second source. The electronic driver circuit is configured so as to apply an electrical driver signal between the gate and the first source or between the gate and the second source of the MOSFET, in order to trigger a change of state of the MOSFET to the OFF state or to the ON state, respectively.

Abstract: A winding support includes a tube for receiving one of the legs of a ferromagnetic core of a magnetic component such that half-legs of the leg face each other in the tube. The magnetic component further includes windings which correspond to the leg and which are wound on the tube. The winding support includes a wedging protrusion and at least one spacing wall. The wedging protrusion is formed on an inner surface of the tube so as to define an air gap between the opposing half-legs. The at least one spacing wall, which is formed opposite the wedging protrusion and on an outer surface of the tube, is configured to keep at least one of the windings away from the air gap.

Abstract: A magnetic component includes two ferromagnetic half-cores stacked and superposed to form a ferromagnetic core comprising three legs, namely two first legs and one second leg. Each leg is formed from two facing half-legs separated by a gap, and each leg incudes a primary winding and a secondary winding having a winding direction, on each of the half-legs forming the leg, respectively. The magnetic component is characterized in that, on the second leg, the primary winding and the secondary winding and their winding directions are inverted with respect to those of the first legs.

Abstract: A switching system is disclosed having a switching arm with a high-side switch and a low-side switch. A control system switches the switching arm alternately between a first configuration, in which the high-side switch is open and the low-side switch is closed, and a second configuration, in which the high-side switch is closed and the low-side switch is open. The control system commands, for each switching operation, the opening of the switch that is initially closed, and then, at the end of a dead time, commands the closure of the switch that is initially open. The system has device for measuring a switch voltage present between the terminals of one of the switches. For each switching operation, the control system, following the command to open the switch initially closed, monitors the measured switch voltage, and determine the dead time for the switching operation based on the monitored switch voltage.

Abstract: The subject matter of the invention is a resonant DC-DC voltage converter, notably for an electric or hybrid vehicle, said converter including n interleaved main resonant circuits, n being a natural integer greater than or equal to two, and in which: the main resonant circuits are connected together at least one neutral point different from a ground of the converter, said neutral point being connected to a ground of the converter by an impedance configured to store energy and to enable zero voltage switching of the switches of the resonant DC-DC converter.

Abstract: The subject matter of the invention is a three-phase resonant DC-DC voltage converter, notably for an electric or hybrid vehicle, said converter including a plurality of resonant circuits. First inductive elements of the resonant circuits are coupled together and primary windings of the transformers of each resonant circuit are coupled together.

Abstract: An electric system to charge a battery on a vehicle provides for a three-phase alternating-direct converter comprising input terminals connected to an outside power grid, a high output terminal and a low output terminal, a direct-direct converter made up of two direct-direct converter circuits, a first converter circuit having a high input terminal connected to the high output terminal of the alternating-direct converter and a second converter circuit having a low input terminal connected to the low output terminal of the alternating-direct converter, the low input terminal of the first direct-direct converter circuit being connected to the high input terminal of the second direct-direct converter circuit, and the high output terminal of the first converter circuit being connected to the high output terminal of the second converter circuit and the low output terminal of the first converter circuit being connected to the low output terminal of the second converter circuit.

Abstract: The invention relates to a method for distributing the total power of an energy conversion device between at least two converters in said energy conversion device, the sum of the conversion powers of the converters being the total power of the conversion device, the energy conversion device converting energy between a first electrical entity and a second electrical entity, characterised in that: said at least two converters correspond to at least two portions of a ring (29), the portions being proportional to a predetermined power value of the respective converters (1) thereof, the combination of the at least two portions forming the whole ring; and in that the total power of the conversion device corresponds to an arc of the ring between the positions of a first slider and a second slider that are movable around the ring, and the distribution of power between the converters is determined by the positions of the first slider and the second slider that are movable around the ring.

Abstract: The invention concerns a method for charging an electrical energy storage unit, in particular installed in a vehicle, from a continuous charging terminal, using a DC/DC voltage converter to adapt the voltage between said continuous charging terminal and said electrical energy storage unit, said DC/DC voltage converter comprising at least two interleaved cells operating out of phase, each cell having respective switches; said method comprising control of the switches of said DC/DC voltage converter by pulse width modulation with a duty cycle to adapt the voltage between said continuous charging terminal and the electrical energy storage unit, said duty cycle having a given value ?v that is substantially constant over several interleaving cycles.

Abstract: An electrical architecture (1) for converting DC voltage into AC voltage, and vice versa, comprising:—a DC/AC voltage converter (2), comprising a plurality of arms mounted in parallel, each arm comprising two controllable switching cells (12), in series and separated by a mid-point, the arms being paired in H-bridges (11),—for each H-bridge (11), a dedicated control member (13), such that all of the switching cells (12) of said H-bridge (11) can be controlled by this control member (13), each control member (13) being intended to communicate with a same remote control unit (14) through a potential barrier (15).

Abstract: The subject matter of the invention is a resonant DC-DC voltage converter, notably for an electric or hybrid vehicle, said converter including n interleaved main resonant circuits, n being a natural integer greater than or equal to two, and in which: the main resonant circuits are connected together at least one neutral point different from a ground of the converter, said neutral point being connected to a ground of the converter by an impedance configured to store energy and to enable zero voltage switching of the switches of the resonant DC-DC converter.

Abstract: The subject matter of the invention is a three-phase resonant DC-DC voltage converter, notably for an electric or hybrid vehicle, said converter including a plurality of resonant circuits. First inductive elements of the resonant circuits are coupled together and primary windings of the transformers of each resonant circuit are coupled together.

Abstract: The present invention relates to a control device (1) for at least one transistor, referred to as the controlled transistor (3), comprising:—said controlled transistor (3) which comprises a control electrode (Ec) and two other electrodes (E1 and E2),—a main control circuit (5) connected to the control electrode (Ec) of the controlled transistor (3) and configured, according to a main mode of operation, to control the state of the controlled transistor (3) and,—an auxiliary control circuit (11) configured, according to an auxiliary mode of operation, to inject an auxiliary current opposing the current circulating between the main control circuit (5) and the control electrode (Ec) of the controlled transistor (3), characterized in that the control device (1) also comprises a control circuit (15) of the auxiliary control circuit (11), said control circuit (15) being configured to block or authorize the auxiliary operation of the auxiliary control circuit (11) depending on the commands from the main control circu

Abstract: A power supply having a transformer, a magnetizing current regulation circuit, and a device for controlling the regulation circuit intended to switch the regulation circuit alternately from the magnetizing state to the demagnetizing state is disclosed. The control device is intended to prolong the magnetization phase for a magnetization time (TF). The power supply also includes an output capacitor connected to a secondary of the transformer so as to form a resonant circuit with the leakage inductor, the voltage between the terminals of the output capacitor corresponding to the output voltage (VS) of the power supply. The magnetization time (TF) and the value of the output capacitor are such that, on the resonance portion of the magnetization phase, the output voltage (VS) describes a sine wave portion and, starting from an initial value (VS0) below the median value of the sine wave, passes through said median value.

Abstract: The present invention relates to a method of managing a charge transfer between, on the one hand means of accumulation (9) of an electrical control device (1) of an electric motor of a motor vehicle (43) and, on the other hand, an external electrical circuit (41) outside said motor vehicle (43), said electrical control device (1) comprising: a voltage converter (21) connected to the accumulation means (9); an H-bridge voltage inverter (3) connected to the voltage converter (21) on the one hand and to the phases of the electric motor on the other hand, characterized in that the method comprises a step of controlling the voltage converter (21) and the voltage inverter (3) as a function of the charge transfer.

Abstract: The present invention relates to a control device (1) for at least one transistor, referred to as the controlled transistor (3), comprising:—said controlled transistor (3) which comprises a control electrode (Ec) and two other electrodes (E1and E2),—a main control circuit (5) connected to the control electrode (Ec) of the controlled transistor (3) and configured, according to a main mode of operation, to control the state of the controlled transistor (3) and,—an auxiliary control circuit (11) configured, according to an auxiliary mode of operation, to inject an auxiliary current opposing the current circulating between the main control circuit (5) and the control electrode (Ec) of the controlled transistor (3), characterised in that the control device (1) also comprises a control circuit (15) of the auxiliary control circuit (11), said control circuit (15) being configured to block or authorise the auxiliary operation of the auxiliary control circuit (11) depending on the commands from the main control circui

Abstract: An electric system to charge a battery on a vehicle provides for a three-phase alternating-direct converter comprising input terminals connected to an outside power grid, a high output terminal and a low output terminal, a direct-direct converter made up of two direct-direct converter circuits, a first converter circuit having a high input terminal connected to the high output terminal of the alternating-direct converter and a second converter circuit having a low input terminal connected to the low output terminal of the alternating-direct converter, the low input terminal of the first direct-direct converter circuit being connected to the high input terminal of the second direct-direct converter circuit, and the high output terminal of the first converter circuit being connected to the high output terminal of the second converter circuit and the low output terminal of the first converter circuit being connected to the low output terminal of the second converter circuit.

Abstract: The invention concerns a method for charging an electrical energy storage unit, in particular installed in a vehicle, from a continuous charging terminal, using a DC/DC voltage converter to adapt the voltage between said continuous charging terminal and said electrical energy storage unit, said DC/DC voltage converter comprising at least two interleaved cells operating out of phase, each cell having respective switches; said method comprising control of the switches of said DC/DC voltage converter by pulse width modulation with a duty cycle to adapt the voltage between said continuous charging terminal and the electrical energy storage unit, said duty cycle having a given value ?v that is substantially constant over several interleaving cycles.

Abstract: An electrical architecture (1) for converting DC voltage into AC voltage, and vice versa, comprising:—a DC/AC voltage converter (2), comprising a plurality of arms mounted in parallel, each arm comprising two controllable switching cells (12), in series and separated by a mid-point, the arms being paired in H-bridges (11),—for each H-bridge (11), a dedicated control member (13), such that all of the switching cells (12) of said H-bridge (11) can be controlled by this control member (13), each control member (13) being intended to communicate with a same remote control unit (14) through a potential barrier (15).