Abstract: A high voltage dc power source for providing a charging current to an electronic device, including one or more strings connected in parallel, each string being subdivided into dc power source units connected in series and each string being provided with a solid-state switch configured to connect and disconnect the string, and a control unit adapted to turn on and turn off the solid-state switch, and the control unit is configured, upon receiving an order to connect the string, to control the switch of the string to be alternately turned on and off so that a soft charging of the electronic device is achieved.

Abstract: A handheld device includes an electronic instrument and a capacitive power supply for storing and delivering power to the electronic instrument. The capacitive power supply includes at least one capacitor, and an electronic circuit operable to boost a voltage from the capacitor to a higher voltage for use by the electronic instrument. The capacitive power supply can be rapidly recharged.

Abstract: A hybrid energy storage system for supplying power to an application with a fluctuating load profile, such as, for example, electric vehicles, hybrid electric vehicles, plug-in hybrid electric vehicles, wind energy harvesting equipment and solar energy harvesting equipment. The hybrid energy storage system includes an ultra-capacitor electrically connected to a DC bus and a power source electrically connected to the DC bus via a controlled switch. The hybrid energy storage system further including a DC/DC converter connected between the power source and the ultra-capacitor, the DC/DC converter boosting a voltage of the power source to charge the ultra-capacitor. The DC/DC converter is preferably controlled to maintain a voltage of the ultra-capacitor at a higher value than the voltage of the power source.

Abstract: A network of collection, charging and distribution machines collects, charges and distributes portable electrical energy storage devices (e.g., batteries, supercapacitors or ultracapacitors). Vehicle diagnostic data of a vehicle using the portable electrical energy storage device is stored on a diagnostic data storage system of the portable electrical energy storage device during use of a respective portable electrical energy storage device by a respective vehicle. Once the user places the portable electrical energy storage device in the collection, charging and distribution machine, or comes within wireless communications range of a collection, charging and distribution machine, a connection is established between the collection, charging and distribution machine and the portable electrical energy storage device.

Abstract: A method in a controller for energizing a chain-link converter including one or more phase legs, each phase leg including a number of series-connected converter cells, each converter cell including four valves arranged in an H-bridge connection with a DC capacitor. Each valve in turn includes a semiconductor switch in parallel with a diode. The method includes the steps of: charging the DC capacitor of each converter cell to a voltage level at which the semiconductor switches are controllable but below their nominal voltage; diagnosing the converter cells so as to detect failed components thereof; bypassing faulty components in a controlled manner; charging the DC capacitors to their nominal voltage. The invention also relates to a controller, computer programs and computer program products.

Abstract: The present invention provides a thin-film capacitor device having a charging circuit and a discharge circuit and capable of stably producing a constant voltage during discharging a thin-film capacitor by an inexpensive configuration. The thin-film capacitor device is characterized by a hybrid type for temporarily storing charge upon receiving DC current from the thin-film capacitor while the voltage becomes lowering, and for supplying DC current in a state of a DC/DC inverter having a base voltage remaining so that a discharge effect continues until the amount of storage in the thin-film capacitor completely runs out.

Abstract: Electrically conducting vanadium arsenate or vanadium phosphate materials are described. The materials include a vanadium arsenate or vanadium phosphate framework structure about organic template and water molecules which may be removed to leave a microporous structure. The three-dimensional vanadium framework may provide electronic conductivity, while the extra-framework constituents may provide ionic conductivity.

Abstract: An electrical capacitor includes: a band-shaped coating foil for positive electrode having a non-coated part of which an edge of one longitudinal side is not coated with an active material; a band-shaped coating foil for negative electrode having a non-coated part of which an edge of one longitudinal side is not coated with an active material; and a band-shaped separators through which an electrolysis solution and ions can pass. The coating foil for positive electrode and the coating foil for negative electrode are flatly wound via the separators so that the non-coated part in the side of the coating foil for positive electrode and the non-coated part in the side of the coating foil for negative electrode are exposed in opposite sides to each other, and the electrode group of the non-coated parts exposed to both sides are bonded.

Abstract: A downhole power system is provided that includes an energy storage adapted to operate at high temperatures, and a modular signal interface device that serves to control the energy storage component as well as offer a means of data logging at high temperatures. The controller is fabricated from pre-assembled components that may be selected for various combinations to provide desired functionality. The energy storage may include at least one ultracapacitor.

Abstract: This invention encompasses embodiments for multi-modal integrated simultaneous measurement of various aspects of fluids contained in circulating systems such as automotive reciprocating engines and vehicle transmissions. These circulating systems perform constant internal lubrication, and heat and contaminant removal to protect the internal moving parts from the inherent friction and damage in normal operation. Most commonly this is achieved with fluids based on hydrocarbon and/or related synthetics, which, over time, can lose their protective properties, and vary in their performance or breakdown/decay due to internal and external events. Several components within the lubricant fluid can be measured and can provide insight into the efficacy of the system to perform its designed mission. The mass and level of the fluid may also be monitored on an on-going basis. Described herein is a real-time, simultaneous, integrated, multi-modal sensor system for early warning notification.

Abstract: The invention broadly encompasses energy storage devices or systems and more specifically relates to methods of enhancing the performance of electrochemical double layer capacitors (EDLCs), or supercapacitors or ultracapacitors, and devices formed therefrom. In some embodiments, the invention relates generally to energy storage devices, such as EDLCs that use phosphonium-based electrolytes and methods for treating such devices to enhance their performance and operation. Embodiments of the invention further encompass phosphonium-based electrolytes comprised of phosphonium ionic liquids, salts, and compositions employed in such EDLCs.

Abstract: The present invention relates to a drive system with energy recovery for driving a machine, in particular for driving a crane, wherein the drive system includes at least one fuel cell unit, at least one capacitive energy storage unit and at least one drive motor, and wherein the fuel cell unit and the energy storage unit are connected in parallel and feed at least one drive motor. According to the invention, the capacitive energy storage unit is dimensioned such that the differential voltage occurring during operation between the fuel cell unit and the capacitive energy storage unit is minimized to such an extent that the current caused by the voltage within the parallel connection of fuel cell unit and energy storage unit does not exceed a defined safe limit value, wherein the fuel cell unit and the energy storage unit are directly coupled with each other and with the remaining drive components without DC/DC converter.

Abstract: A method is provided for charging a supercapacitor. The method initially provides a supercapacitor with a metal cyanometallate (MCM) particle anode, an electrolyte including a salt (DB) made up of cations (D+) anions (B?), and a cathode including carbonaceous materials (?). The method connects an external charging device between the anode and cathode, and the charging device supplies electrons to the anode and accepting electrons from the cathode. In response to the charging device, cations are inserted into the anode while anions are absorbed on the surface of the cathode. A supercapacitor device is also presented.

Abstract: An electrically-driven mobile body which can be given a boosting charge with electric power supplied by a single power supply apparatus together with other electrically-driven mobile bodies having different charging conditions and which can cool a charging system thereof without any coolant from the outside, as well as a boosting charge method for an electrically-driven mobile body for the same purpose.

Abstract: A system includes utilizes optical sensors arranged within or on portions of an electrochemical energy device (e.g., a rechargeable Li-ion battery, supercapacitor or fuel cell) to measure operating parameters (e.g., mechanical strain and/or temperature) of the electrochemical energy device during charge/recharge cycling. The measured parameter data is transmitted by way of light signals along optical fibers to a controller, which converts the light signals to electrical data signal using a light source/analyzer. A processor then extracts temperature and strain data features from the data signals, and utilizes a model-based process to detect intercalation stage changes (i.e., characteristic crystalline structure changes caused by certain concentrations of guest species, such as Li-ions, within the electrode material of the electrochemical energy device) indicated by the data features. The detected intercalation stage changes are used to generate highly accurate operating state information (e.g.

Abstract: The performance of sodium-based energy storage devices can be improved according to methods and devices based on surface-driven reactions between sodium ions and functional groups attached to surfaces of the cathode. The cathode substrate, which includes a conductive material, can provide high electron conductivity while the surface functional groups can provide reaction sites to store sodium ions. During discharge cycles, sodium ions will bind to the surface functional groups. During charge cycles, the sodium ions will be released from the surface functional groups. The surface-driven reactions are preferred compared to intercalation reactions.

Abstract: A method and a device to discharge cell capacitors in a cell based voltage source converter. Each cell has switching elements in half bridge or full bridge configuration and a capacitor in parallel to the half or full bridge. Each cell has two terminals, whereof at least one is between two switching elements. The converter has AC and DC terminals, with the possibility to connect each of the terminals to ground, via a further switching element. A resistor is implemented into at least one of the ground connections. To discharge to capacitors, the switching elements in the respective cells are configured such, that the capacitor is in parallel connection to the terminals. The capacitors are thus discharged via the resistor to ground.

Abstract: The present invention relates to an electric energy storage device such as a capacitor, a secondary battery, or the like, and more particularly, to an electric energy storage device capable of improving high output characteristics by using a voltage terminal The electric energy storage device according to an exemplary embodiment of the present invention includes a positive electrode and a negative electrode storing electric energy and a positive current terminal and a negative current terminal connected to the positive electrode and the negative electrode to apply current; and a positive voltage terminal and a negative voltage terminal connected to the positive electrode and the negative electrode to detect voltage across the positive electrode and the negative electrode, wherein the charging or discharging operation is controlled by using the detected voltage across the positive electrode and the negative electrode as control voltage.

Abstract: A series of capacitors arranged in a way to prevent build up of electric flux between the plates of adjacent capacitors. The capacitors are electrically wired and provided with means to charge them by deriving electrical energy from a power source. The capacitors are also provided with means to discharge them one at a time at predetermined interval and during discharging, momentarily activate a motor. As the motor is activated during the discharge event of a capacitor it rotates a shaft which has means to engage and rotate a second shaft mounted with a flywheel. The first shaft will have means to disengage itself from the second shaft in between the discharge events of any two capacitors. The second shaft is connected to a third shaft through a gear box allowing it to rotate at desired rpm. The third shaft is also connected to a generator to produce electricity.

Abstract: A power distribution network includes multiple charge storage components and multiple charging circuits to control the charging and discharging of the charge storage components, which may comprise a battery and a supercapacitor. By appropriate arrangement and selection of the storage components, ripple in the power supply voltage, whose propagation to other components relying on the power distribution network may cause an audible buzz, may be significantly reduced. Additionally, appropriate arrangement and selection of the storage components, electromagnetic interference may also be significantly reduced.

Abstract: A rechargeable battery is disclosed. The rechargeable battery of the invention includes a high density capacitor and an integrated circuit. The high density capacitor is connected to a ground terminal and a first node carrying a first voltage. The integrated circuit includes a band gap circuit, a first detecting unit, a voltage divider, a second detecting unit and at least one low dropout voltage regulator. The band gap circuit generates a band gap voltage according to the first voltage. The first detecting unit measures the first voltage and determines whether to apply an input charging voltage to the high density capacitor. The voltage divider is connected in parallel with the high density capacitor and has a second node carrying a second voltage. The second detecting unit measures the second voltage according to the band gap voltage and determines whether to connect a third node to the first node.

Abstract: A power supply system includes an output node, an internal power supply unit, a boost storage unit, a charging path unit, and a discharging path unit. The output node is coupled to a load device. The internal power supply unit includes a gold capacitor unit for storing an internal storage voltage. The charging path unit is turned on in a charging period to store a boost supply voltage in the boost storage unit. The discharging path is turned on in a discharging period to provide a power signal for drive the load device according to the internal storage voltage and the boost supply voltage. The charging and discharging periods are non-overlapping.

Abstract: An electric vehicle energy system is provided. The electrical vehicle energy system includes an electrical control unit used for producing the electric vehicle mode according to the external input signals. The electrical vehicle energy further includes an energy storage system used for producing a motor control signal according to an electric vehicle mode. The power loop structure includes at least a first power module and a second power module. The structure further includes at least a first detector and a second detector used for producing a first detecting signal and a second detecting signal according to the first power module and the second power module. The power loop structure further includes an energy storage controller used for producing the plurality of switch control signals according to the electric vehicle mode, the first detecting signal and the second detecting signal through a control area network by a voltage-difference hysteresis operation.

Abstract: Provided is a circuit simulation model that can suitably represent capacitor characteristics, thereby realizing accurate circuit design and circuit analysis. A SPICE model is constituted of a capacitor unit in which a capacitor is replaced with a linear voltage dependent current source, a low-pass filter unit that has a function of extracting a DC bias voltage, a calculation circuit unit that is configured by combining an adder, a multiplier, and the like to perform a calculation of a circuit equation derived from an equivalent circuit for a capacitor such as an idealized C circuit model, an RC circuit model, or the like, and a linear voltage dependent voltage source that applies a total voltage applied across the capacitor to the calculation circuit.

Abstract: A system for supplying an electrical system with direct current, the system including at least two direct current power supply devices each having means of electrical connection to an alternating current power supply source and an AC/DC converter of alternating current into direct current, a module for managing the power supply of the electrical system which, after reception of an information of failure of a first active power supply device, transmits a command to start up a second inactive power supply device and a back up electrical energy storage device electrically by-pass connected between the power supply devices and the electrical system. The management module also receives the information of failure from the back up device and/or from the electrical system and transmits the command to start up the second power supply device during a discharge phase of the back up device.

Abstract: An electrical storage system includes: serially connected electrical storage blocks each including at least one electrical storage element; a voltage detection circuit connected to each electrical storage block via voltage detection lines; a protection circuit including an overvoltage protection element connected in parallel with each electrical storage block via the voltage detection lines and a first resistor connected in series with the overvoltage protection element; a discharge circuit connected in parallel with each overvoltage protection element via the voltage detection lines and in series with the first resistor, the discharge circuit including a second resistor having a larger resistance value than the first resistor; and a controller detecting an abnormality in the overvoltage protection elements by, while the electrical storage elements are not connected to the load, comparing a voltage of a discharging first electrical storage block with a voltage of a non-discharging second electrical storage bl

Abstract: An energy harvesting circuit harvests energy from a voltage source and charges a storage element with the harvested energy. The energy harvesting circuit includes an energy source, a storage capacitor to store energy output from the energy source, a power converter circuit, an energy storage element, and an enabling circuit. The enabling circuit turns the boost converter circuit on and off according to a monitored capacitance voltage of the storage capacitor. When the boost converter circuit is turned off, the storage capacitor accumulates energy output from the energy source until a reference voltage is reached, whereupon the boost converter circuit is turned on, enabling current flow from the storage capacitor to the storage element. When the storage capacitor discharges to a minimum voltage level, the boost converter circuit is turned off. The enabling circuit and a reference voltage supply are powered by the energy source.

Abstract: Systems and methods are disclosed herein to a power factor adjustor comprising: a power factor measurement unit configured to measure the power factor on an input line to a load and generate a power factor correction signal based on the measured power factor; and a power factor adjustment unit connected to the power factor measurement unit comprising: a fixed capacitor connected in series to a first switching device; and an adjustable element having a variable capacitance connected in parallel to the fixed capacitor and in series to a second switching device, wherein the overall capacitance of the power factor adjustment unit is adjusted by adjusting the capacitance of the adjustable element or by toggling the first and second switching devices in response to the power factor correction signal.

Abstract: The present invention provides wireless power supply systems that wirelessly supply power to a remote device for rapidly charging a charge storage capacitor, which charges a battery with the power stored in the charge storage capacitor. This allows the remote device to be positioned near the inductive power supply for rapid charging of the charge storage capacitor and allows battery charging to continue even after the remote device is removed from the inductive power supply.

Abstract: A system, method, and computer-readable storage medium to dynamically manage heat in an electric energy storage system, such as a battery pack or ultra-capacitor pack system in an electric vehicle.

Abstract: An apparatus for power supply to electronic, electrical or electromechanical equipment, the apparatus including a chargeable power source in the form of at least one high energy capacitor package (1); equipment control unit (3) for controlling power supply to the equipment, a power source control unit (2) for controlled charging and discharging of the power source, and a means (4; 10?; 11?; 12?) for power supply from an external energy source (10; 11; 12) to the power source control unit (2).

Abstract: [Problem] To enable effectively utilizing electrical energy of a vehicle and effectively preventing early deterioration of the second electricity storage unit. [Solution] Provided is a vehicle control device for supplying electricity to an electrical load component of a vehicle.

Abstract: An electronic system has a capacitor that smoothes voltage of a direct current source, a resistance circuit that discharges charge of the capacitor, and an inverter circuit that converts the smoothed voltage into a three-phase ac voltage and applies this ac voltage to a motor. The resistance circuit has resistors and patterned wires disposed on a substrate such that the wires serially connect the resistors to discharge charge of the capacitor. The resistors are aligned in a straight line. The resistors located at positions different from ends of the series of resistors have resistance values lower than resistance values of the resistors located at respective ends of the series of resistors. More preferably, as the position of one resistor approaches the center of the series of resistors, the resistor is set at a lower the resistance value.

Abstract: Frequent charging/discharging to an electric energy storage element is suppressed for energy saving and longer lifetime. A transmission-line-side power converter device converts power from a transmission line, and supplies DC power to a feeder line connected to an electric energy storage element. An output current controller connected with a line voltage detector detects the feeder line voltage, and a charging rate detector detects a charging rate of the electric energy storage element. A control table sets charging/discharging start voltages and current saturated voltages based on the detected line voltage and charging rate. The output current controller controls the electric energy storage element to discharge at a high line voltage as the charging rate increase, to suppress charging the electric energy storage element at the low line voltage, and makes discharging difficult at the low line voltage to facilitate charging at the low line voltage as the charging rate decreases.

Abstract: A system for monitoring an energy storage system composed of multiple cells connected in series has a chain of monitors including at least first and second monitors. The first monitor is configured for monitoring at least a first cell in the energy storage system to produce first monitored data. The second monitor is configured for monitoring at least a second cell in the energy storage system to produce second monitored data. The first monitor is further configured for transferring the first monitored data to the second monitor for delivery to a controller.

Abstract: Mobile devices have limited power sources. In some cases, such as camera flash operations in cell phones or digital cameras, the power required to provide bright illumination is significant and exceeding the battery voltage level. In order to supply burst power or continuous high power to light sources, such as white LEDs (light emitting diodes), mobile devices typically employ charge storage functioning as energy reservoir that can supply the required power. One such charge storage is a supercapacitor that can supply the needed power repeatedly by discharging and recharging. Various embodiments of the present invention include devices and methods for providing the charge energy and controlling the charge and discharge operations.

Abstract: An electric power steering apparatus comprises a charge-discharge circuit capable of configuring a circuit for charging an auxiliary power supply and a circuit for discharging a battery and the auxiliary power supply as well as configuring a discharge-preference circuit which enables only the discharge of the auxiliary power supply while avoiding the charge thereof. In the apparatus, a control circuit performs a power latch operation of carrying on control till the end of a predetermined period of time following an operation of turning off an ignition key, and also causes the charge-discharge circuit to configure the discharge-preference circuit thereby enabling steering assist accompanied by the discharge of the auxiliary power supply.

Abstract: An ultracapacitor that includes an energy storage cell immersed in an advanced electrolyte system and disposed within a hermetically sealed housing, the cell electrically coupled to a positive contact and a negative contact, wherein the ultracapacitor is configured to output electrical energy within a temperature range between about ?40 degrees Celsius to about 210 degrees Celsius. Methods of fabrication and use are provided.

Abstract: The present invention generally relates to devices for energy storage technologies, and more particularly to electrochemical flow capacitor systems and applications. Embodiments of this invention provide energy storage devices comprising: a positive electrode current collector, a negative electrode current collector, and an ion-permeable separator separating the positive and negative electrode current collectors; a positive electrode disposed between the positive electrode current collector and the ion-permeable separator; a negative electrode disposed between the negative electrode current collector and the ion-permeable separator; wherein at least one of the positive and negative electrodes comprises a non-stationary (including moveable or flowable, relative to the current collectors) solid or semi-solid composition comprising supercapacitive particles and an electrolytic solvent; and wherein the electrolytic solvent is substantially free of electrochemically oxidizable or reducible species.

Abstract: A charging system for a mobile device such as a computer, and method of operating the same are disclosed. The computer is a system that includes: a system unit being provided with power output to an operation power supply terminal to carry out an operation; a battery unit outputting battery power to the operation power supply terminal; and a solar power unit being provided with feedback on a voltage of the operation power supply terminal and outputting solar power corresponding to a predetermined operational level of the system unit to the operation power supply terminal.

Abstract: In one aspect, energy storage devices and methods are disclosed that include (preferably in order): a cationic electrode cover layer, a cationic electrode, a cationic exchange polymer electrolyte layer, a separation dielectric layer, an anionic exchange polymer electrolyte layer, an anionic electrode, and an anionic electrode cover layer. In certain embodiments, the device is configured to be initially placed in an ionized state, and optionally, can be configured to be further charged to store energy in an electrostatic mode. In another aspect, ionic solid dielectric materials, energy storage devices including ionic solid dielectric materials, and methods of making and using such materials and devices are disclosed herein.

Abstract: An electronic circuit comprising a circuit module, a capacitor connected to the circuit module and a shutdown line providing a shutdown signal to the circuit module for suspending the circuit module. The electronic circuit further comprises a switching module for switching the capacitor such as to reduce discharging of the capacitor, depending on the shutdown signal. Particularly, the switching module disconnects the capacitor from ground. Disconnection takes effect when the circuit module is suspended or in power down mode because of the shutdown signal being provided.

Abstract: A device includes a backup power supply configured to provide power to an external system upon loss of primary system power, the backup power provided by at least one capacitor; logic to create, while the capacitor is available as the backup power supply to the external system, a transient elevation of the capacitor's stored potential above a upper predetermined operating potential of the capacitor; logic to obtain measurements of the capacitor's output voltage during the transient elevation of the capacitor's stored potential; and logic to determine a capacitance of the capacitor from the measurements; the device comprising multiple capacitors in series; logic to discharge each capacitor in series individually from the others; and logic to monitor for overcharging of any of the capacitors in series, and, during charging of the capacitors in series, to operate the discharge logic for any capacitor in the series that is in danger of overcharging.

Abstract: The present invention provides wireless power supply systems that wirelessly supply power to a remote device for rapidly charging a charge storage capacitor, which charges a battery with the power stored in the charge storage capacitor. This allows the remote device to be positioned near the inductive power supply for rapid charging of the charge storage capacitor and allows battery charging to continue even after the remote device is removed from the inductive power supply.

Abstract: A method and system are disclosed for controlling electrical current through an inductive load. The electrical current is supplied by one of at least three selectable dual capacitor bank electrical circuits. The method includes storing electrical energy during a charge operating state in first and second capacitor banks of a first dual capacitor bank circuit. The stored electrical energy is then used to drive the inductive load when operating the first dual capacitor bank circuit in a drive operating state. After depleting the stored electrical energy from the first and second capacitor banks, the first dual capacitor bank transitions to a collection operating state that includes collecting electrical energy from the inductive load. A second and third dual capacitor circuits simultaneously transition among the charge operating state, the drive operating state, and the collection operating state during operation.

Abstract: An electrical storage device includes a plurality of power-generating elements, a case, and a valve. The power-generating elements perform charge and discharge and are connected electrically in series. A plurality of housing sections each accommodate one of the plurality of power-generating elements and are disposed along a predetermined direction. A communication path switches from a closed state to an opened state depending on the internal pressure of the housing section. When the communication path is in the opened state, gas can be moved between two of the housing sections adjacent to each other in the predetermined direction. The valve is provided for a particular housing section and releases gas produced within the case to the outside of the case. The empty space other than the power-generating element is present in each of the housing sections, and the empty space in the particular housing section is the largest.

Abstract: Systems, apparatus, and methods are provided for initializing a voltage bus. An exemplary system includes an input interface, a voltage bus, discharge circuitry coupled to the voltage bus, connection circuitry coupled between the voltage bus and the input interface, and a control module coupled to the connection circuitry and the discharge circuitry. The control module activates the discharge circuitry prior to activating the connection circuitry.

Abstract: A rechargeable energy storage system (RESS) for a hybrid electric vehicle includes a power supply module that includes at least one battery. A startup module includes N supercapacitors arranged in parallel with the at least one battery, wherein N is an integer greater than or equal 1, and an adjustable power supply arranged in series with at least one of the N supercapacitors and in parallel with the at least one battery, wherein the adjustable power supply maintains a voltage across the N supercapacitors below a predetermined voltage.

Abstract: A capacitor-based (supercapacitor, ultracapacitor or pseudocapacitor) electrical charger, rechargeable device and energy storage pack for use with a rechargeable power tool. The rechargeable device includes a storage capacitor. The electrical charger includes a supply capacitor electrically connected to an electrical contact, the supply capacitor being charged when the electrical charger is connected to a power source. While in use, any charge in the supply capacitor is rapidly distributed between the supply capacitor and the storage capacitor when the rechargeable device is mounted in the receiver of the electrical charger. The electrical charger includes a safety interlock switch which only supplies power to the electrical contact of the charger after electrical terminal of the rechargeable device have engaged the electrical contact.

Abstract: The present invention relates to an electrical device for charging accumulator means (5), said electrical device comprising: a motor (6) connected to an external mains (11); an inverter (2) connected to the phases of said motor (6); and switching means (4) integrated into the inverter (2), said switching means (4) being configured to permit said motor (6) to be supplied and to permit the accumulator means (5) to be charged by the inverter (2). According to the invention, said electrical device further includes, for each phase of said motor (6), an RLC low-pass filter (18) connected, on the one hand, to the mid-point (16) of the phase of said motor (6) and, on the other hand, to ground.