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 electronic control device controls an energy converter delivering a total output voltage and/or an output current from a plurality of elementary DC input voltages, each coming from a respective source of energy. The converter has a number of conversion modules, each receiving an elementary DC input voltage from a respective source and delivering an elementary output voltage. The conversion modules are connected in series by the outputs thereof and the total output voltage is equal to the sum of the elementary output voltages. Each conversion module includes a number of switches for converting the elementary DC input voltage into the respective elementary output voltage. The control device has a number of elementary controllers and a main controller connected to the elementary controllers. Each elementary controller is associated with a respective conversion module and controls the switches of the module.

Abstract: A power supply system includes a main power supply system generating, from a main network, at least one polyphase voltage for supplying at least one load. Each load includes a winding for each phase. The windings are connected in star connection at a midpoint. An auxiliary power supply system of an auxiliary network includes a first power supply terminal and a second power supply terminal. The main power supply system is configured to generate the at least one polyphase voltage with at least one non-zero homopolar component. The auxiliary power supply system includes a module for connecting the first power supply terminal to the midpoint and the second power supply terminal to a reference point, for supplying the auxiliary network via at least one homopolar component coming from the midpoint.

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: 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: 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 includes, between third and fourth terminals, electric cells and switches and a second switch control circuit. The battery further includes at least one first data transmission bus coupling the first control circuit to each second control circuit, the first control circuit including a memory having chained lists stored therein. Each chained list includes elements each including an identifier of one of the electric cells and at least one first pointer designating another element in the chained list.

Abstract: A battery with switched accumulators, including: a first cell; a plurality of second cells series-connected with the first cell, each first and second cell including: an electric accumulator series-connected with a first switch, a second switch connected in parallel with the accumulator and the first switch, and a first diode, the cathodes of the first diodes being connected to an output node, the anode of the accumulator of the first cell being connected to ground, the anode of the first diode of each second cell being coupled to the cathode of the accumulator by at least one third switch; and a control circuit capable of measuring characteristics of at least certain accumulators and of controlling the first, second, and third switches according to the characteristics.

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, between third and fourth terminals, electric cells and switches and a second switch control circuit. The method includes the determination by the first control circuit of a first priority table associated with a battery charge operation and of a second priority table associated with a battery discharge operation, the first priority table including a first classification of the priorities of the electric cells for the charge operation and the second priority table comprising a second classification of the priorities of the electric cells for the discharge operation.

Abstract: Electrical energy converter and associated system for converting electrical energy The invention relates to an electrical energy converter including an inverter (10) for obtaining alternative electrical energy from a DC electrical energy source. The inverter includes a switch (52) having first and second conduction terminals for receiving an AC voltage, the electrical energy converter being suitable for supplying an output electrical energy to a load (8). Said converter includes a capacitive circuit (14) with variable and controllable capacitance, connected between the inverter (10) and the load (8), the control of a modification of said capacitance making it possible to obtain a modification of an electrical output parameter of the converter.

Abstract: A method for controlling a power supply device of an electrical system, the device including at least one separate power supply assembly per phase of the electrical system, each power supply assembly including at least one battery pack defined by a state parameter and provided with at least one battery to supply a control voltage to the phase to which it is connected, taking into account at least one setpoint value. The method includes executing at least one correction block receiving as input each setpoint value and the state parameter of each battery pack of the power supply assemblies of the system, and for each power supply assembly, the correction block is configured to determine a correction value to be applied directly or indirectly to its setpoint value.

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: The invention relates to an energy recovery device including: a)—at least one first magnet, able to be set in movement according to a rotational or translational movement; b)—a main magnet, able to be set in rotation about an axis (ZZ?) by said at least first magnet; c)—at least one second magnet, fixedly disposed with respect to the main magnet, for determining one or more position(s) of equilibrium of the latter; d)—at least one conductive coil for transforming a variation of orientation of the main magnet into electrical energy, wherein: in a 1st speed or frequency range, called low range, a coupling of said at least one first magnet and of said main magnet causes the rotation of the latter from at least one position of equilibrium, the oscillations of said main magnet around said at least one position of equilibrium resulting in the creation of an electrical energy in said at least one conductive coil; for a 2nd speed or frequency range, called mid-range, a coupling of said at least one first magnet a

Abstract: A method for determining the state of at least one sensor whose mechanical behaviour is nonlinear as a function of the amplitude of the pressure exerted against the sensor, the sensor and an electromechanical transducer being able to be coupled to a support, the method comprising the steps of: applying an electrical signal at a first amplitude to the terminals of the first electromechanical transducer, and determining a first set of values of a parameter characteristic of the electrical impedance of the first electromechanical transducer in response to the application of the electrical signal; applying the electrical signal at a second amplitude to the terminals of the first electromechanical transducer, and determining a second set of values of the parameter characteristic of the impedance; measuring a deviation between the first set of values and the second set of values; determining a state of the sensor as a function of the deviation between the first set of values and the second set of values.

Abstract: The invention relates to a battery pack type device including a first terminal (101), a second terminal (102) and a plurality of energy storage elements between these terminals, each element including: a) at least one switch for connecting it with, or to disconnect it from, one or more other element(s); b) at least one conductor (15, 17) for conducting a current, parallel to the element, when the latter is not connected with one or more other element(s); c) at least one switch (20) for establishing a short-circuit between the terminals of the battery when the latter is disconnected or supplies a zero voltage; d) a control circuit (30), specifically adapted to: select at least one first energy storage element and at least one second energy storage element, at least one of these elements being to be heated up, to make a current circulate at least from the first element to the second element when the terminals (101, 102) are short-circuited; stop the current when a setpoint temperature for one or more elem

Abstract: The Invention relates to a battery pack type device including: a)—a plurality of energy storage elements in series, each associated with at least one switch to connect it in series or disconnect it and/or to short-circuit it; b)—at least one switch (20) for establishing a short-circuit between a first terminal (101) and a second terminal (102) of the battery when the latter is disconnected or supplies a zero voltage; c) a control circuit (30), specifically adapted to: select at least one first energy storage element in a first state-of-charge or at least one second energy storage element in a second state-of-charge and to make a current circulate from the first element to the second element when the first terminal (101) and the second terminal (102) of the device are short-circuited; stop the current when at least one of the parameters of the first element selected from among the charge, the voltage, the state-of-health, the temperature, the impedance has a value equal to that of the same parameter for th

Abstract: A method for determining the state of at least one sensor, the method using a first electromechanical transducer and a second electromechanical transducer that are coupled to a substrate, and a non-linear electrical circuit connected between the second electromechanical transducer and the sensor, the method comprising the steps of: applying an electrical signal at a first amplitude to the terminals of the first electromechanical transducer, and determining a first set of values of a parameter characteristic of the electrical impedance of the first electromechanical transducer in response to the application of the electrical signal; applying the electrical signal at a second amplitude to the terminals of the first electromechanical transducer, and determining a second set of values of the parameter characteristic of the impedance; measuring a difference between the first set of values and the second set of values; determining a state of the sensor on the basis of the difference between the first set of values

Abstract: The electrical energy conversion system comprises: a converter including E first switching assembly or assemblies, each associated with an input voltage and including two first switches; N second switching assembly or assemblies, each associated with an output voltage and including two second switches; and at least one piezoelectric assembly connected to a switch; E>1, N>1; a control device configured for controlling, during a resonance cycle, a switching of the switches so as to alternate phases at constant voltage and phases at constant load across said piezoelectric assembly or assemblies. The converter comprising an electrical transformer having a primary winding connected to a first switching assembly and a secondary winding connected to a second switching assembly, and each piezoelectric assembly being connected between a switch and a winding.

Abstract: The invention concerns an electronic device for controlling a converter from an input voltage to at least one output voltage, comprising a first bridge comprising two first switching branches, each between two terminals of the input voltage and comprising two first switches connected at a first midpoint; at least one second bridge comprising two second switching branches, each between two terminals of the output voltage and comprising two second switches connected at a second midpoint; at least one pair of first and second piezoelectric assemblies, each connected between respective first and second midpoints, distinct from one piezoelectric assembly to the other. The control device commands, during a respective resonance cycle of the piezoelectric assemblies, a switching of each of the switches to alternate phases at substantially constant voltage across the piezoelectric assemblies and phases at substantially constant load across said piezoelectric assemblies.

Abstract: This electrical energy converter comprises: a first bridge comprising at least a first switching branch between two terminals of an input voltage and including two first switches connected at a first midpoint; a second bridge comprising at least a second switching branch between two terminals of an output voltage and including two second switches connected at a second midpoint; at least one piezoelectric assembly connected between respective first and second midpoints; and at least one switching aid circuit connected to a respective midpoint and configured to, via the flow of a previously received current, discharge a parasitic capacitance of a switch of the bridge to which it is connected, and respectively charge a parasitic capacitance of another switch of said bridge.

Abstract: A converter of an input voltage into at least one output voltage, including a pair of first and second piezoelectric assemblies; a first bridge including two first switching branches each having at least one first switch; a second bridge including two second switching branches each having at least one second switch; each piezoelectric assembly including a first end connected to the first bridge and a second end connected to the second bridge; each first switch being connected between a terminal of the input voltage and a first end; each second switch being connected between a terminal of the output voltage and a second end.