Abstract: Technologies for transferring a load by a static transfer switch (STS) to a catcher uninterruptible power supply (UPS) are disclosed. In an illustrative embodiment, each STS in a catcher UPS system monitors an available power of the catcher UPS. The STS determines, in response to a power failure event of an associated UPS, whether a real-time power supplied to a load connected to the STS exceeds the available power of the catcher UPS and whether the STS has priority over each other STS in the system. The STS transfers the load from the associated UPS to the catcher UPS in response to determining that the real-time power supplied to the load does not exceed the available power of the catcher UPS and that the STS has priority over each other STS in the system.

Abstract: According to the present invention there is provided a receiver device comprising, a first electrode (3) which can capacitive couple to an electrode of a transmitter device; a second electrode (5) which can capacitive couple to said electrode of said transmitter device; an energy harvesting circuit (7), which comprises a first capacitor (9), wherein said first electrode (3) is electrically connected to the energy harvesting circuit (7) so that energy from a signal which was transmitted from the electrode of the transmitter device and received at the first electrode (3), can be used to increase voltage across the first capacitor (9); and a comparator (15), wherein the first capacitor (9) is electrically connected to a positive supply input terminal (15c) of the comparator (15) so that voltage across the first capacitor (9) can be used to power the comparator (15); a demodulator circuit (11) wherein said second electrode (5) is electrically connected to the demodulator circuit (11); a first filter circuit (17),

Abstract: A power converter as provided includes: a control circuit configured to receive a first electric energy supplied to the control circuit from an energy storage device, receive a second electric energy supplied to the control circuit from a power grid equipment, and be powered on with a third electric energy which is the first electric energy or the second electric energy, and output a control signal; and a power conversion circuit configured to receive the control signal and perform power conversion between the energy storage device and the power grid equipment according to the control signal.

Abstract: A system may wirelessly supply electrical power to an aircraft cabin component which moves relative to another aircraft cabin component. A first aircraft cabin component may include a solid state electrical power transmitter having an induction loop. The second aircraft cabin component may include a solid state electrical power receiver having a receiving coil. When a power source is connected to the solid state electrical power transmitter, the induction loop creates an oscillating magnetic field which passes through the receiving coil and induces a flow of alternating current through the receiving coil which drives the load.

Abstract: In an uninterruptible power supply system, an uninterruptible power supply operates based on a command to an inverter held in a holder before an abnormality occurs in communication when the abnormality occurs in the communication between an operation board and the uninterruptible power supply.

Abstract: This application relates to a wireless charger with reduced heat generation during operation. The wireless charger includes a connector, a charging assembly and a cable connecting the connector and the charging assembly. A converter component has been moved away from the charging assembly, where an electronic device is placed for charging, to the connector. In some embodiments, one or more electromagnetic shielding components protect the components of the wireless charger.

Abstract: Systems and methods for providing federated power management in an electronic circuit. The methods comprise: performing first operations by a processing device to obtain information indicating a current level of charge for each of a plurality of capacitors which have been supplied energy from a power source; transforming, by the processing device, each capacitor's current level of charge into a number of service units for a respective electronic load device of a plurality of electronic load devices; determining, by the processing device, at least one of recharging priorities for the plurality of capacitors and discharging priorities for the plurality of capacitors at least based on the results of said transforming; and performing second operations by the processing device to cause the plurality of capacitors to be recharged in accordance with the recharging priorities or discharged in accordance with the discharging priorities.

Abstract: A power supply device includes: a first power storage device; a second power storage device that outputs voltage higher than the output voltage of the first power storage device and is connected in series to the first power storage device; a voltage converter connected to the output terminal of the first power storage device to output converted voltage; a second load connected to the output terminal of the voltage converter; and a control unit that controls the voltage converter at fixed boost ratio such that the converted voltage is the sum of the output voltage of the first power storage device and output voltage of the second power storage device. The output terminal of the first power storage device is connected to the second power storage device. The output terminal of the second power storage device is connected to the output terminal of the voltage converter.

Abstract: Aspects of the present invention relate to an apparatus and method for detecting foreign objects in a wireless power transmission system. This specification provides a wireless power reception apparatus for detecting foreign objects, including a power measurement unit for generating required power information indicative of required power for the wireless power reception apparatus, sending the required power information to a wireless power transmission apparatus, and measuring power induced from the wireless power transmission apparatus and a secondary coil for receiving the power induced from the wireless power transmission apparatus. In accordance with the present invention, foreign objects intervened between the wireless power transmission apparatus and the wireless power reception apparatus are recognized, and a user removes the foreign objects. Accordingly, damage to a device attributable to foreign objects can be prevented.

Abstract: A vehicle include an interior cabin including a plurality of structural components, a plurality of electrical devices within the interior cabin, a power supply, and an electrical signal distribution system mounted to at least one of the plurality of structural components and electrically coupled to the power supply and the plurality of electrical devices. The electrical signal distribution system includes a printed circuit board (PCB), and a plurality of outlets coupled to the PCB. The plurality of outlets electrically couple to the plurality of electrical devices. The electrical signal distribution system provides electrical signals to the plurality of electrical devices.

Abstract: A cradle device for providing a wireless charging function according to the present invention comprises: a cradle part provided for being mobile terminal-mountable; a wireless charging module which is disposed inside the cradle part and includes a transmitting coil, a switching part for switching a connecting passage between an external power supply and the transmitting coil, and a control part for controlling the switching part; and an NFC tag coupled to the wireless charging module, wherein, when receiving a tag recognition signal from the NFC tag, the control part performs a turn-on control of the switching part. According to the present invention, the cradle device can simultaneously provide a mobile terminal with a wireless charging function and a user via the mobile terminal with various contents provided through NFC tag information.

Abstract: A system for wireless power transfer control comprising a receiver for receiving and consuming power, a transmitter for transmitting power, wherein the receiver is configured to generate and send a message to the transmitter, the transmitter is configured to control an output level transmitted to the receiver based on the message, and wherein the receiver or the transmitter is configured to perform a corrective action if a magnitude of the message exceeds a power error threshold for a threshold time.

Abstract: A vehicular power supply system includes a first power supply mounted on a vehicle, a first power supply line connected to the first power supply and disposed on one side in a width direction or a front-rear direction of the vehicle, a second power supply mounted on the vehicle, that is different from the first power supply, a second power supply line connected to the second power supply and disposed on another side in the width direction or the front-rear direction of the vehicle, a third power supply line in which one end is connected to the first power supply line and another end is connected to the second power supply line, and a power semiconductor that switches between short-circuiting and opening of the third power supply line.

Abstract: A wireless power transmitter can include a transmitting coil configured to wirelessly transmit power to a receiving coil. The wireless power transmitter can include a shield residing on a given side of a substrate spaced apart from the transmitting coil. The shield can be configured to filter an electric field induced by the transmitting coil.

Abstract: A microgrid system and method of controlling same, the microgrid system comprising a storage battery (5000), an energy storage converter (1000), a monitoring circuit and a controllable switch (2000). When the microgrid system is in grid-connected mode, the energy storage converter outputs steady power under the control of an inner current loop unit (1220); in grid-connected mode, an outer voltage loop unit (1240) does not participate in control, but remains in an operating state, and on the basis of four outer voltage loop unit input signals, estimates in advance a specified current loop signal (Uvo) for handover from grid-connected mode to island mode. When the microgrid system hands over from grid-connected mode to island mode, the outer voltage loop unit goes into operation, and the inner current loop unit controls a steady output voltage and frequency from the energy storage converter according to the pre-estimated specified current loop signal output by the outer voltage loop unit.

Abstract: A power supply system includes: a plurality of battery cells interconnected between a first stack node and a second stack node and providing a first operation voltage to a high-voltage board net; a low-voltage battery interconnected between the second stack node and a low voltage node and outputting a second operation voltage to a low-voltage board net; a step-down converter interconnected between the first stack node and the second stack node and outputting a third operation voltage to the low voltage node to charge the low-voltage battery; an intermediate node dividing the battery cells into first and second subsets of the battery cells and being connected to the low voltage node via a first switching element; and a control unit configured to detect a terminal voltage of the low-voltage battery and to set the first switching element into a conductive state according to the detected terminal voltage.

Abstract: An object of the present invention is to improve the accuracy of detection of the metallic foreign object. A metallic foreign object detector includes a sensor part having at least one antenna coil that receives a magnetic field or current to generate a vibration signal, an integration circuit that acquires the integral value of a waveform of a signal corresponding to the vibration signal, and a determination circuit that determines the presence/absence of a metallic foreign object approaching the antenna coil based on the integral value and a criterion integral value which is the integral value obtained in the absence of the approaching metallic foreign object. The integral value and the criterion integral value are obtained by integrating the waveform having the same wavenumber.

Abstract: When the output voltage of a vehicle battery is lower than a lower limit value of an activation voltage, a power storage is charged with electric power supplied from the outside to a contactless power receiver, and thus the electric power stored in the power storage is supplied to a controller via a discharger to enable the controller to be activated. After the controller is activated, the controller causes a battery relay to be connected using the electric power supplied from the power storage via the discharger. Electric power is supplied from a high voltage battery to the vehicle battery to enable the vehicle battery to output a voltage higher than or equal to the lower limit value and enable a plurality of relays to be connected.

Abstract: A solid-state switch, comprising at least one switch controller. At least one switch having a first terminal coupled to a power source, a second terminal coupled to the power source and a control terminal coupled to the switch controller and configured to selectively conduct and block current flow from the first terminal to the second terminal. At least one power converter coupled to the first terminal and the second terminal and configured to convert power from the power source from a first voltage level to a second voltage level and to provide power at the second voltage level to the switch controller.

Abstract: A platform performs wireless power supply to an underwater mobile object having a relatively movable relationship using coil pairs disposed to be opposable. The platform includes: a recessed section configured to accommodate at least a part of the underwater mobile object with a gap; a coil configured to constitute the first opposable coil pair (5A) on a first wall portion of the recessed section facing each other; and a coil configured to constitute the second opposable coil pair on a second wall portion of the recessed section facing each other.