Abstract: This control device is configured to control a converter comprising a piezoelectric element and several switches, and capable of delivering N output voltage(s) from of E input voltage(s), E?1, N?1. The control device comprises a module for controlling, during a respective resonance cycle of the piezoelectric element, switching of the switches to alternate phases at substantially constant voltage and phases at a substantially constant charge at the terminals of the piezoelectric element, each cycle comprising first and second half-cycles, a current flowing in one direction in the piezoelectric element during first half-cycle and in an opposite direction during the second half-cycle. The number of substantially constant voltage phases during a cycle is greater than or equal to E+N+2, and each of the half-cycles comprises at least two substantially constant voltage phases.

Abstract: A method of controlling a battery including a first control circuit and a plurality of modules arranged between first and second terminals. Each module comprises electric cells. The battery further includes a sensor of the current flowing through the first terminal. The method includes the successive steps of: updating a first counter representative of the quantity of charges flowing through the first terminal; for each electric cell, for each connection of the electric cell to the other electric cells, storing into first data the value of the first counter on connection of the electric cell and for each disconnection of the electric cell from the other electric cells, storing a second counter equal to the difference between the value of the first counter on disconnection of the electric cell and the first data of said electric cell.

Abstract: The present description concerns a power converter (400) comprising: a switch (114) comprising first (114d) and second (114s) conduction terminals intended to receive a first AC voltage (Vds), a first circuit (402) for detecting a minimum value reached by the first voltage at each halfwave, and for averaging minimum values over a plurality of halfwaves, and a second circuit (404) for controlling the switch configured, according to the average of said values, to turn on the switch when the first voltage is substantially null.

Abstract: A method of controlling a battery including a first control circuit and a plurality of modules arranged in series between first and second terminals, each module including electric cells and switches and a second switch control circuit, the battery further including at least one first data transmission bus coupling the first control circuit to each second control circuit, the method including the transmission, by the first control circuit to the second control circuits, of first data representative of an electric cell configuration to be obtained to follow a set point for the delivery of a voltage and/or of a current between the first and second terminals, the second control circuits connecting or disconnecting the electric cells based on said first data and on a classification of the priorities of the electric cells.

Abstract: An electronic control device for controlling a converter that comprises a piezoelectric element and a plurality of switches which are commanded to alternate phases, respectively at substantially constant voltage, and substantially constant charge, across the terminals of said piezoelectric element, the control device comprising: a measurement module for measuring a period of a resonance cycle of the piezoelectric element; an event detection module for detecting a characteristic event belonging to a current resonance cycle; a command module for commanding the switching of the switches; a computation module for computing at least three subsequent switching time instants during at least one subsequent resonance cycle, which is posterior to the current resonance cycle, each subsequent switching time instant being computed based on a respective characteristic event; and the command module being configured to command the switching of the respective switch at each of the subsequent time instants computed.

Abstract: An electromagnetic device for converting input mechanical energy into output electrical energy, including a movable element that is able to make a vibratory mechanical movement, a vibration source configured to actuate the vibratory mechanical movement of the movable element, a coil, a magnetic circuit passing through the coil, the coil being configured to generate the output electrical energy when the movable element is making its vibratory mechanical movement, a permanent magnet arranged in the magnetic circuit and able to generate a magnetic flux, referred to as the total magnetic flux (Fm_T), in the magnetic circuit.

Abstract: The invention essentially consists of a system (1) for transmitting acoustic power, which will determine the optimum frequency and the optimum electrical load without data communication being established beforehand with the receiver (3).

Abstract: An electromagnetic energy converter including two plates each having an inner face; a flux variation device arranged between the inner faces, and which includes a first prismatic part, a magnet and a second prismatic part, and is arranged to pivot about an axis between two equilibrium positions, and for which the first and second prismatic parts each come into contact with an inner face; and a coil designed to be crossed by a magnetic flux generated by the magnet and guided by the two plates in a first direction when the device is in one equilibrium position, and in a second direction when said device is in the other equilibrium position.

Abstract: An electrical converter chosen from the group consisting of an inverter able to generate an AC voltage from a DC voltage and a rectifier able to generate a DC voltage from an AC voltage. This converter comprises a first inductor and a controllable switch that are connected in series between first and second DC voltage ports. The converter comprises a piezoelectric resonator comprising: a first electrode connected directly to a first power terminal of the switch, a second electrode connected directly to a second power terminal of the switch, and a piezoelectric material interposed between the first and second electrodes.

Abstract: A battery including: a power supply bus; an assembly of electric cells and of first switches coupling the cells; second switches forming an H bridge and coupling said assembly to nodes; a first circuit for supplying first control signals to the first and second switches; a second circuit for delivering a first power supply voltage to the first circuit based on the voltage across one of the cells; a third circuit for supplying second control signals to at least two of the second switches and connected to the power supply bus; and first diodes coupling the first circuit to the two second switches and second diodes coupling the third circuit to the two second switches.

Abstract: A method of controlling a battery including a first control circuit and a plurality of modules arranged in series between a first terminal and a second terminal, each module of the plurality of modules including electric cells and switches coupling the electric cells and a second switch control circuit, the battery further including at least one first data transmission bus coupling the first control circuit to each second control circuit. The first control circuit includes a memory-having, for each electric cell, an identifier of said each electric cells and a priority level for connection of said each electric cell with other electric cells among priority levels stored therein.

Abstract: The invention relates to an electrical power-supply system comprising: a plurality of electrical batteries (B_1, B_2, B_3, B_aux), each battery comprising a plurality of cells connected in series and/or parallel and separate switching means attached to each cell or to a group of a plurality of cells, said plurality of batteries comprising batteries that are called main batteries (B_1, B_2, B_3), which are each dedicated to delivering electrical power to one separate piece of consuming equipment, processing and control means, the processing and control means comprising: means for selecting at least one what is called standby battery (B_S) from said plurality of batteries, the selected standby battery being a battery the output current of which is zero.

Abstract: A wireless electronic detonator includes an energy source and functional modules. A first switching switch is provided between the energy source and the functional modules, making it possible to connect or not connect the energy source to the functional modules. A control module for controlling the first switching means includes a module for recovering radio energy configured to receive a radio signal from a control console, to recover the electric energy in the radio signal received, to generate an energy recovery signal (VRF) representative of the level of electric energy recovered, and to generate as output a control signal (VOUT) as a function of the recovered energy, the control signal controlling the first switch.

Abstract: A capacitive power supply circuit including, between first and second terminals of application of an AC input voltage, a distributed capacitive structure including a plurality of elementary capacitive units, each including a current limiter series-connected with a capacitor between first and second terminals of the unit and a voltage limiter connected in parallel with the capacitor, the elementary capacitive units being series-coupled by their first and second terminals.

Abstract: The invention concerns a method for controlling a power supply device of an electrical system, the device comprising at least one separate power supply assembly (E_1, E_2, E_3) per phase of the electrical system, each power supply assembly comprising at least one battery pack defined by a state parameter (STi) and provided with at least one battery intended to supply a control voltage to the phase to which it is connected, taking into account at least one setpoint value (Xset), the method consisting in: Executing at least one correction block (B_CORR) receiving as input each setpoint value and the state parameter (STi) of each battery pack of the power supply assemblies of the system, and, For each power supply assembly (E_1, E_2, E_3), the correction block (B_CORR) is configured to determine a correction value (Xcorr_i) to be applied directly or indirectly to its setpoint value.

Abstract: An assembly able to deliver an output current, includes N electrical energy storage or production cells of rank i, where N?2, being able to supply a maximum current Imax,i at all times t; a management circuit for managing the electrical energy storage or production cells, wherein, with the cells being classed according to their rank i in decreasing priority of use, the management circuit comprises means for addressing at least the cell of rank 1 or the cells according to their rank i and according to the following criteria: the cell of rank 1 is addressed on its own as long as it is able to supply the output current Is<Imax1; the cell of rank 1 is addressed with additionally a number k of cells that are addressed successively according to their rank i, so as to supply the current Is at all times in discharge mode, the number k being such that 2<k?N and meeting the following conditions: ?i=1k?1Imax,i<Is and ?i=1kImax,i?Is

Abstract: A method of controlling an electric system including electric cells. The method includes the steps of: a) determining a first (second) priority table including first (second) cell priority levels for a system charge (discharge) operation; b) determining the average current exchanged by each cell over a time window according to the cell implementation number in a cell connection sequence; c) determining a classification of the cell implementation numbers by increasing or decreasing order of the average current; d) assigning the implementation numbers according to the order of the classification to the cells by increasing or decreasing number of the priority levels of the first or second priority table; and e) connecting or disconnecting the cells according to the order of the assigned implementation numbers.

Abstract: An electrical converter chosen from the group consisting of an inverter able to generate an AC voltage from a DC voltage and a rectifier able to generate a DC voltage from an AC voltage. This converter comprises a first inductor and a controllable switch that are connected in series between first and second DC voltage ports. The converter comprises a piezoelectric resonator comprising: a first electrode connected directly to a first power terminal of the switch, a second electrode connected directly to a second power terminal of the switch, and a piezoelectric material interposed between the first and second electrodes.

Abstract: The invention relates to an energy storage device including at least one block having n energy storage units, where n?2; a charge and discharge management circuit electrically linked to the n storage units and making it possible to alternately connect all of the energy storage units of one and the same block to one another; and the block having a defined block voltage between the low potential of the first energy storage unit and the high potential of the nth energy storage unit. The charge and discharge management circuit includes: first means for triggering the toggling from a parallel mode to a series mode and second means for triggering the toggling from the series mode to the parallel mode.

Abstract: A connector made of an electrically insulating material that will electrically connect a main conductor and a secondary conductor, the connector including a central section extending along a longitudinal direction, a main part and a secondary part defining a main channel and a secondary channel respectively, parallel to the longitudinal direction and separated by the central section, the connector also includes electrical connection devices made of an electrically conducting material, designed to electrically connect the main conductor and the secondary conductor as soon as they are inserted in the main channel and in the secondary channel respectively.