Abstract: A method for controlling an electrical actuator is disclosed. The method may include driving an electrical actuator at a power level during each of a plurality of actuation attempts and determining whether the electrical actuator actuated during each of the plurality of actuation attempts. The method may also include counting a number of failed actuation attempts, counting a number of successful actuation attempts. In addition, the method may include adjusting the power level based on at least one of the number of failed actuation attempts and the number of successful actuation attempts, and driving the electrical actuator at an adjusted power level.

Abstract: A wireless power reception apparatus includes a reception (RX) resonator configured to form a resonance coupling with a first resonance period associated with an envelope of a power to receive the power from a transmission (TX) resonator; a switch controller configured to generate, at intervals of the first resonance period, a control signal to deactivate the RX resonator at an off timing corresponding to a time instant at which a maximum energy is stored in an inductor of the RX resonator; and a switch configured to deactivate the RX resonator in response to the control signal.

Abstract: A power brick includes a first port configured to provide power to a first computing device, a second port configured to provide power to a second computing device, a first switch coupled to the first port and configured to select one of a first power configuration and a second power configuration based on a load associated with the second port, and a second switch coupled to the second port and configured to select one of the first power configuration and the second power configuration based on the load associated with the second port.

Abstract: Embodiments are directed to an apparatus comprising terminals providing a voltage, a monitor configured to receive an input from an entity external to the apparatus indicating that energy associated with the apparatus is to be selectively coupled to, or isolated from the terminals, and a protection mechanism coupled to the monitor and configured to be selectively turned on and turned off based on the input received from the external entity.

Abstract: A vehicular power source controller is designed so that when there is abnormal action in a microprocessor and an abnormal fuse state cannot be determined from the current of a load detected by a current sensor circuit, power supply to the load cannot be turned on and off by the operation of a combination switch corresponding to the load, but can be turned on and off by the operation of an ignition switch. It is thereby possible to prevent continuing power supply to the load when the combination switch is turned on during the abnormal action of the microprocessor, and battery exhaustion can be suppressed. Power supply to the load cannot be turned on and off by the operation of the combination switch during the abnormal action of the microprocessor, and an operator is easily made aware of the abnormal action of the microprocessor.

Abstract: A power supply system, an electronic device and an electricity distribution method, which can enhance, with maximum efficiency, power distribution of the electronic device. The power supply system includes a power source unit, an electricity distribution unit connected to the power source unit, a system load power supply unit connected to the electricity distribution unit, and a peripheral power supply unit connected to the electricity distribution unit. The electricity distribution unit includes a power consumption prediction module configured to detect system load power consumption and calculate a variation trend of the system load power consumption and a power consumption control module configured to adjust power supply capacities of the system load power supply unit and the peripheral power supply unit according to the variation trend of the system load power consumption.

Abstract: An apparatus configured to transceive wireless power, includes a magnetostrictive resonator configured to be excited by a magnetic field, and a soft magnetic material disposed in a vicinity of the magnetostrictive resonator. The apparatus further includes a transducing coil disposed in a vicinity of the magnetostrictive resonator or the soft magnetic material, and configured to convert mechanical energy generated by the excitation of the magnetostrictive resonator to electric energy.

Abstract: A power theft inspection apparatus is provided with: a controlling device configured to open a third switch unit between a power reception unit and a power reception control circuit of a power receiving apparatus at the start of a power theft inspection, then open a first switch unit between a power transmission unit and a power supply unit of a power transmitting apparatus after the opening of the third switch unit, and then close a second switch unit configured to short-circuit the power transmission unit of the power transmitting apparatus after the opening of the first switch unit; and a determining device configured to determine whether or not there is power theft according to a current detected by a first current detecting device configured to detect a current in the power transmission unit of the power transmitting apparatus upon the power theft inspection.

Abstract: A control circuit is described herein. The control circuit includes an oscillator and a processor. The oscillator is configured to generate a reference signal. The processor is coupled to the oscillator. The processor is configured to receive a first output current sample, a second output current sample, and a third output current sample, all of an output current. The first output current sample is first-in-time, the second output current sample is second-in-time, and the third output current sample is third-in-time. The processor is further configured to compute a time-derivative of the output current. The processor is further configured to compute a command variable based on the reference signal, a time-derivative of the reference signal, the third output current sample, and the time-derivative of the output current.

Abstract: A photovoltaic (PV) system can include one or more trackers that each includes a plurality of rows of PV collection devices. The rows of PV collection devices can be electrically independent from one another.

Abstract: A method and system are disclosed for managing power sharing of a plurality of charging stations sharing the same portion of an electrical network, the method comprising detecting an event at a charging station of the plurality of charging stations; determining if a charging configuration is acceptable with the event and if the charging configuration is not acceptable, modifying the charging configuration accordingly.

Abstract: A system includes a first power source and a variable neutral impedance circuit configured to vary a neutral impedance of the first power source based on presence and absence of a parallel coupling of the first power source with a second power source. The variable neutral impedance circuit may be configured to reduce a neutral current of the first power source when the first power source is operating in parallel with the second power source. The variable neutral impedance circuit may include an impedance coupled in series with the first power source, a bypass switch configured to bypass the impedance and a control circuit configured to control the bypass switch. The impedance may include a resistor.

Abstract: A voltage converter includes a high voltage regulator, a buck converter and a dual input linear regulator unit. The high voltage regulator converts a rectified voltage to a first load voltage. The rectified voltage is rectified from an input voltage. The buck converter generates an output voltage having a first level based on the rectified voltage during a stabilizing period and provides a transition detection signal that is enabled when the output voltage transitions to the first level. The stabilizing period is successive to an initializing period. The dual input linear regulator unit receives the first load voltage, the output voltage and a reference voltage, generates a second load voltage based on the first load voltage during the initializing period, and generates the second load voltage based on the output voltage during the stabilizing period.

Abstract: The present invention discloses a wireless power transfer system having positioning function, and a positioning device and a method therefor. In the positioning method, a power transmission side keeps generating a stable power; a power receiving side is moved relatively to the power transmission side and generates a corresponding induced voltage. An indication signal related to the induced voltage is generated by detecting the induced voltage, and the indication signal provides a suggestion to a user as to how the power receiving side should be moved relatively to the power transmission side to be closer to an optimal power transfer position.

Abstract: A method and a device provide intrinsically safe redundant current supply of field devices with a common current-limiting resistor in the mesh of the field device, wherein the field device is connected via a connection line to field-device connection terminals of the current supply device consisting of at least two current supply units. The output voltage and/or the output current of each current supply unit is reduced as a function of the voltage across the field-device connection terminals.

Abstract: A driving apparatus for an electric vehicle is provided. The driving apparatus for the electric vehicle can charge the other batteries using a charging voltage of any one battery in a state in which an engine is not driven, control a voltage generated by an integrated starter generator (ISG), selectively charge a plurality of batteries having different charging voltages without using a separate converter, and reduce a weight and volume thereof.

Abstract: The invention includes a method for transferring a power load between adjacent electrical conductors using a temporary transfer bus, and the transfer bus apparatus itself, wherein the transfer bus includes first and second conductive sections rigidly mounted to and separated by a rigid bus insulator, and a selectively operable transfer bus closing device adapted to selectively electrically connect the first and second conductive sections to each other, the method including suspending the first and second conductive sections from the adjacent conductors, whether directly or using suspension insulators, electrically connecting the conductive sections to the conductors, and closing the transfer bus closing device.

Abstract: Described embodiments include a system, method, and apparatus. A system includes an antenna comprising a sub-Nyquist holographic aperture configured to define selectable arbitrary complex radiofrequency electromagnetic fields on a surface of the antenna. A path analysis engine tests power transmission pathways from the antenna to a target device located in an environment within a space radiateable by the antenna. The environment includes a human being. An optimization circuit selects responsive to the tested power transmission pathways a power transmission regime. The regime includes an electromagnetic radiation pattern shaped to transfer radiofrequency electromagnetic power from the antenna to the target device without exceeding a radiation exposure limit for humans. A gain definition circuit selects a complex radiofrequency electromagnetic field implementing the selected power transmission regime from the at least two selectable, complex radiofrequency electromagnetic fields.

Abstract: The present disclosure provides a hybrid charging method for wireless power transmission based on pocket-forming. This method may extend the battery life of electronic devices such as tablets, smartphones, Bluetooth headsets, smart-watches among others. The method may include wireless power transmission through suitable techniques such as pocket-forming, while including an additional source of energy (backup battery) in the receiver attached or connected to the electronic device.

Abstract: A power conversion system includes a DC-DC converter, a voltage detector, a current detector and a controller. The controller controls the DC-DC converter such that the DC-DC converter starts outputting power when the output voltage detected by the voltage detector is below a predetermined voltage and stops outputting the power when the output current detected by the current detector is below a reference current that corresponds to the conversion efficiency being larger than or equal to a predetermined conversion efficiency. The reference current is determined as a current value at which the conversion efficiency is decreased to be lower than the predetermined conversion efficiency when the output current exceeds the current value. The controller includes a limiting means that limits the output current not to exceed the reference current while the DC-DC converter is outputting the power.