Abstract: The disclosure relates to a power supply device for an electrically operable vehicle having an electric drive motor. The power supply device comprises an electric energy accumulator device, a range-extender with an internal combustion engine and a generator producing alternating current. The generator is mechanically connectable to the internal combustion engine, and the energy accumulator device is configured to be charged during driving with the alternating current from the generator. The energy accumulator device comprises several power supply connections on which respectively one of several controllable potentials can be provided, and several power supply branches having several serially connected power cell modules. Several power supply branches are interconnected on one end to the neutral point and each power supply connection is connectable to one end of a power supply branch.

Abstract: A configuration includes: resonance-type power source circuits provided for at least two electric paths, each including a power element that performs switching at a high frequency of 2 MHz or more, and a resonant circuit element that causes the power element to perform resonant switching; a phase-control-type matching circuits provided for the respective electric paths, each having a function of controlling a phase difference between output currents of the resonance-type power source circuits and a function of providing matching of resonance conditions between the resonance-type power source circuit and a load; and a combining unit that combines output currents processed by the phase-control-type matching circuits for the respective electric paths.

Abstract: Methods of operating an automatic transfer switch (ATS) include detecting a first transition of an auxiliary contact set mechanically linked to a switch that selectively couples first and second AC power sources to an output of the ATS, determining a transition duration based on the detected first transition and a first assertion time of a first command for the first transition, identifying a second assertion time based on the determined transition duration, and asserting a second command for a second transition of the switch at the identified second assertion time.

Abstract: The invention relates to an electrical conversion and distribution system for an aircraft, the system comprising a synchronous starter-generator (ENG S/G) intended to be coupled to an aircraft engine, a rectifier (R) capable of transforming alternating voltage into direct voltage, an auxiliary synchronous starter-generator (AUX S/G) intended to be coupled to an auxiliary power group, a first, a second and a third power converter (CV1, CV2, CV3) capable of transforming direct voltage into alternating voltage or vice versa, and at least one battery (BATT).

Abstract: A galley system comprising at least one electrically operated galley device, a galley frame having at least one compartment for housing the at least one galley device, at least one fuel cell unit, and a power control and monitoring unit coupled with the at least one galley device and the at least one fuel cell unit. The power control and monitoring unit is adapted for receiving a power request signal from the at least one galley device, for determining, whether the at least one fuel cell unit is able to provide the requested power and for sending an acknowledgment signal to the respective galley device, when the at least one fuel cell unit is able to provide the requested power, and wherein the galley system is independent from an external power supply.

Abstract: Disclosed herein are a wireless power transfer apparatus, a method for wireless power transfer and a method of detecting a resonant frequency used in a wireless power charging system or a wireless power transfer. The wireless power transfer apparatus includes a plurality of transmission coils, each of which transmits power to a receiver coil through magnetic resonance; a signal generator transmitting signals having different resonant frequencies to the plurality of transmission coils, the signal generator being connected to the plurality of transmission coils; and a feedback unit transferring information on amounts of powers which are respectively output by the plurality of transmission coils to the signal generator.

Abstract: One example of a device includes an output terminal to electrically couple to a load, a first input terminal to electrically couple to a first voltage source, and a blocking rectifier electrically coupled between the first input terminal and the output terminal. The device includes a second input terminal to electrically couple to a second voltage source. The second input terminal is electrically coupled to the output terminal. The device includes a control circuit to control the second voltage source to prevent a voltage at the output terminal from exceeding a voltage at the first input terminal and to deliver power to the load in place of power delivered by the first voltage source.

Abstract: A system for protecting the output terminal of the on-board-charger (OBC) includes: the OBC configured to apply an output voltage equal to a voltage of a battery to the battery to perform charging of the battery, an output terminal protection apparatus configured to compare a voltage difference between the output voltage of the OBC and the voltage of the battery with a threshold, and an OBC relay configured to connect the OBC to the battery when the voltage difference is less than the threshold. The OBC performs the charging of the battery after the OBC is connected to the battery.

Abstract: A wireless power receiver is disclosed. A wireless power receiver according to various embodiments of the present disclosure includes a resonant reception unit configured to receive wireless power by a resonance scheme; an inductive reception unit configured to receive wireless power by an induction scheme; and a power processing unit configured to process wireless power received at the resonant reception unit and the inductive reception unit. When the wireless power is received by the induction scheme, a current flowing in the inductive reception unit is greater than a current flowing in the resonant reception unit, and when the wireless power is received by the resonance scheme, a current flowing in the resonant reception unit is greater than a current flowing in the inductive reception unit.

Abstract: A system for providing a primary control power (PCP) for a power grid (PG) by at least one energy storage device (ESD) comprising an energy resource controller (ERC) connected to said energy storage device (ESD), wherein said energy resource controller (ERC) has a state of charge control unit (SOC-CU) adapted to perform a state of charge (SOC) power control of the energy storage device (ESD) to avoid inadmissible state of charge states of the energy storage device (ESD) caused by a stochastic demand for primary control power (PCP) by said power grid (PG).

Abstract: A technology for a wireless transfer station that is operable to detect interference during a wireless transfer of energy or data between wireless transfer stations. A transfer load on a wireless transfer coil of a wireless transfer station can be monitored during a wireless transfer of energy or data from the wireless transfer station to another wireless transfer station. A change in the transfer load that exceeds a threshold value can be detected. The wireless transfer of energy or data by the wireless transfer station can be adjusted using the wireless transfer coil based on the detected change in the transfer load.

Abstract: A hybrid drive system includes first and second power supply devices that supply direct-current power; first and second power storage devices are respectively connected to the first and second power supply devices so as to accumulate or discharge the direct-current power; a first load device that receives a supply of the direct-current power from the first power supply device and the first power storage device and drives a first load; and a second load device that receives a supply of the direct-current power from the second power supply device and the second power storage device and drives a second load. The hybrid drive system includes an inter-group contactor for electrically connecting and disconnecting input terminals of the first power storage device and the second power storage device.

Abstract: A hybrid power load balancing system configured to manage the amount of power transfer via a plurality of inductive coils is provided. The system comprises one or more power supplies, a plurality of inductive outlets associated with and configured to be supplied power by each of the power supplies for providing power to loads connected thereto, and a load balancer associated with each of the outlets. A power supply and its associated outlets and load balancers constitute a cluster. The load balancers are configured to grant power classes to the outlets to supply at least a minimum required power class to each of the attached loads.

Abstract: An energy storage arrangement includes an electrical energy store, a control device which is assigned thereto and which, in the operating state, is designed to determine control information relevant to the operation of the energy store, and a switching device which is assigned to the control device and which, in the non-operating state of the control device, is designed to start up the control device, the switching device including at least one temperature-sensitive switching means which, when a specific threshold temperature is exceeded, at least one material property of the switching means changes in such a way that the control device is started up by way of the switching device.

Abstract: A power supply system includes a first converting stage, a second converting stage, and a third converting stage. The first converting stage is configured to generate a first voltage according to a first input voltage. The second converting stage is coupled to the first converting stage in series, and includes a first non-regulated power converter and a second non-regulated power converter. The first non-regulated power converter is configured to generate a second voltage according to the first voltage. The second non-regulated power converter is configured to generate a third voltage according to the second voltage. The second voltage is higher than the third voltage, and a varying range of the second voltage is wider than a varying range of the third voltage. The third converting stage is configured to generate a first output voltage according to the third voltage.

Abstract: The Independent lighting and signalling kit (10) is an innovative light system of semi-trailers trailers (7), campers and trucks that uses the best technologies. It is able to recover alternative energy and convert it into electric energy, accumulating it in the appropriate batteries (4), if necessary in situations that ensure road safety is improved, saving human lives. It is a system that is completely independent of the structure of the vehicle that can be installed subsequently. The disclosed device is able to improve road safety, reduce road accidents involving vehicles that collide against trailers or semitrailers parked in rest areas with poor or no visibility.

Abstract: A system for electrically connecting a piece of cabin equipment of an aircraft to a control system and to at least one electrical power supply source of the aircraft. The connection system comprises a host interface module to which the control system and the at least one electrical power supply source are connected. The host interface module ensures the conversion of data signals originating from the control system and a transfer of voltages of the at least one power supply source to power supply/data signals that conform to a given protocol. An interface module integrated in the cabin equipment ensures the conversion of the power supply/data signals conforming to the given protocol to data signals for controlling at least one electrical service element of the cabin equipment and the transfer of the voltages of the at least one power supply source to the at least one electrical service element.

Abstract: This invention discloses a power switch that includes a fast-switch semiconductor power device and a slow-switch semiconductor power device controllable to turn on and off a current transmitting therethrough. The slow-switch semiconductor power device further includes a ballasting resistor for increasing a device robustness of the slow switch semiconductor power device. In an exemplary embodiment, the fast-switch semiconductor power device includes a fast switch metal oxide semiconductor field effect transistor (MOSFET) and the slow-switch semiconductor power device includes a slow switch MOSFET wherein the slow switch MOSFET further includes a source ballasting resistor.

Abstract: In a power transmission apparatus which transmits power from a power transmission device to a power reception device in a noncontact manner, the power transmission device includes a first main body supporting the power reception device on adjacent first and second surfaces, and a power transmission coil formed by planar coils which are respectively symmetrically disposed on the first and second surfaces with respect to an intersection between the first and second surfaces inside the first main body, and includes an extension region in which an occupation area of the coils gradually increases while becoming distant from a part close to the intersection. The power reception device includes a second main body that includes third and fourth surfaces which respectively face the first and second surfaces, and a power reception coil disposed in the second main body so as to correspond to the third and fourth surfaces.

Abstract: Disclosed is a resonant type transmission power supply device including a transmission power state detecting circuit 11 to detect a transmission power state of a transmission antenna 2, a foreign object detecting circuit 124 to detect the presence or absence of a foreign object in an electromagnetic field generated from the transmission antenna 2 on the basis of a detection result acquired by the transmission power state detecting circuit 11, and a power control circuit 125 to reduce or stop the supply of electric power to the transmission antenna 2 when foreign object is detected by the foreign object detecting circuit 124.