Abstract: An information setting apparatus in one aspect of the present disclosure comprises a clock information device, an information receiving device, a permission time calculating device, and an information setting device. The permission time calculating device calculates an operation permission time based on current time information stored in the clock information device and on start time information received by the information receiving device. The information setting device sets operation limitation information, including the operation permission time to at least one of a battery pack or an electrically-driven working machine.

Abstract: In the present legacy electrical power generation and distribution system, the power quality delivered to end consumers is being degraded by a number of disruptive technologies and legislative impacts; especially with the rapidly increasing myriad of privately owned and operated domestic and commercial distributed energy generation (DEG) devices connected at any point across a low voltage (LV) distribution network. The present invention bypasses this increasing critical DEG problem by offering a solution comprising an energy processing unit (EPU) that is installed at the customer's electrical power point of use (POU). And because of the controlled tightly voltage regulated output of the EPU, significant energy savings can be achieved through dynamic voltage control, utilizing the CVR effect, reduced reactive power demand, and reduced or eliminated peak demand billings.

Abstract: According to an embodiment, an automatic transfer switch bypass breaker system can include a switch gear configured with an automatic transfer switch electrically coupled to a first power sources and to a common load bus. The automatic transfer switch bypass breaker system can further include an automatic transfer switch bypass breaker electrically coupled to the first power source and to the common load bus and a utility bypass breaker electrically coupled to the first power source and to the common load bus. The utility bypass breaker can be configured for supplying power from the first power source directly to the common load bus.

Abstract: According to one embodiment, there is provided a power transmitting device including: a power supply, a resonator, an adjuster and a controller. The power supply supplies AC power. The resonator includes a magnetic core and a coil wound around the magnetic core, the resonator wirelessly transmitting the AC power supplied from the power supply to a different resonator arranged to be opposed to the resonator. The adjuster relatively moves the coil and the magnetic core along a longitudinal direction of the coil. The controller controls the adjuster based on a value of current flowing in the resonator to adjust relative positions of the magnetic core and the coil.

Abstract: A power supply circuit according to an embodiment of the invention includes: voltage sources; voltage control circuits that boost an input voltage; and a voltage source connection switch that connects at least one of the voltage sources to one of the voltage control circuits. For example, the voltage source connection switch connects, to the voltage control circuit, a voltage source having a voltage lower than a predetermined reference voltage among the voltage sources, and connects, to the voltage control circuit, a voltage source having a voltage equal to or higher than the determined reference voltage among the voltage sources.

Abstract: An electronic device lacking an internal power supply comprises electronic circuitry, an external power adapter having an input connector for receiving AC power from a conventional AC power outlet and for providing a low-voltage output signal to an output connector, and a first port electronically coupled to the electronic circuitry for receiving the low-voltage output signal from the output connector of the power adapter and for providing the low-voltage output signal to the electronic circuitry.

Abstract: A DC voltage power source, comprising: first electrochemical cells electrically connected in series; a DC/DC converter, the output of the converter being connected in series with said first electrochemical cells, a secondary DC voltage source applying its potential difference to the input of the converter.

Abstract: A coil structure may include a first coil wound on one plane, at least one second coil wound around the first coil, and at least one third coil wound around the first coil in a direction which is perpendicular to a winding direction of the at least one second coil.

Abstract: A switching device comprises a first and second connector, a first and second input, an output, a switch connected between the first connector and the second connector, a current sensor configured to measure a current flowing through the switch, and a controller connected to the current sensor, the switch, the first input, the second input, and the output. The controller is configured to: operate the switch based on a first control signal at the first input; connect the second control signal at the second input to the output; operate the switch to open in response to the current flowing through the switch exceeding a predetermined current limit; and disconnect the second control signal from the output in response to the current flowing through the switch exceeding the predetermined current limit.

Abstract: A system using a hybrid source of energy supply scheme is disclosed. The system includes a first circuit configured to transmit and receive electromagnetic waves, where the first circuit is configured to operate in one of a plurality of operation modes, where the plurality of operation modes includes a normal operation mode, an energy harvesting mode, and a sleep mode. The system further includes a second circuit coupled to the first circuit and configured in one of the plurality of operation modes. The second circuit includes at least one of a receiver or a transmitter, and a third circuit coupled to the first circuit and the second circuit. The third circuit configured to the normal operation mode when the first circuit is configured in the normal operation mode and the second circuit is configured in a normal operation mode.

Abstract: According to one aspect, embodiments of the invention provide a UPS comprising a plurality of DC busses configured to receive DC power from a converter, the plurality of DC busses including a positive DC bus configured to maintain a positive DC voltage level, a mid-point DC bus, and a negative DC bus configured to maintain a negative DC voltage level, a 3-level inverter coupled to the plurality of DC busses and configured to convert the DC power from the plurality of DC buses into output AC power, and a controller configured to monitor the positive and negative DC voltage levels, identify an imbalance between the positive and negative DC voltage levels, and selectively control, based on the imbalance, the 3-level inverter to operate in a 2-level mode of operation and a 3-level mode of operation to transfer energy between the positive and negative DC busses.

Abstract: A wireless power transmitter comprises a bridge inverter including a first switch and a second switch coupled together with a first switching node therebetween, and a first capacitor coupled to the first switching node. The transmitter further includes control logic configured to control the first switch and the second switch according to an operating frequency to generate an AC power signal from a DC power signal, and a resonant tank operably coupled to the first switching node of the bridge inverter, the resonant tank configured to receive the AC power signal and generate an electromagnetic field responsive thereto. A method for operating the wireless power transmitter and a method for making the wireless power transmitter are also disclosed.

Abstract: A switching module comprising at least one current sense component.

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 method of providing power to electronics within a cable is described. The method may include communicatively coupling a first device to a second device via a cable. The cable may include electronic components integrated within the cable. The method may also include providing a signal from the first device to the second device. The method may also include providing, via an internal power line within the cable, power to the integrated electronic components. The method may also include providing, via a device power line within the cable, power between the first device and the second device, wherein the internal power line and the device power line are electrically isolated from one another inside the cable.

Abstract: An apparatus (200) for remote manipulation of an electric equipment. The apparatus (200) comprises a supporting structure (204) adapted to be attached to the electric equipment adjacent to a button (202a) of the electric equipment, and an elongated lever (206) attached to an axis (204a) of the supporting structure between a first end and a second end of the elongated lever such that the elongated lever is rotatable around the axis (204a). The apparatus (200) also comprises an actuation member (208, 210) adapted to actuate the first end of the elongated lever in response to an actuation signal (S) such that the elongated lever rotates around the axis (204a) so to move a finger portion (206c) at the second end of the lever against the button with a predefined maximum length.

Abstract: A method automatically parameterizes bay controllers and/or protective devices of a switching arrangement. The method includes automatically detecting the topology of the switching arrangement on the basis of topology information, and automatically determining interlocking and/or enabling conditions for at least one device on the basis of the topology. Communication connections for the at least one device are automatically specified while taking into account the interlocking and/or enabling conditions determined for this device. The at least one device is parameterized with the interlocking and/or enabling conditions and the communication connections and the topology determined for this device, so that interlocking or enabling of a switching action in the at least one device is controllable during the operation of the switching arrangement.

Abstract: Disclosed is a wireless power transmitter which wirelessly transmits power through a wireless power repeater to a wireless power receiver using resonance. The wireless power transmitter includes a power supply unit for outputting AC power having a predetermined frequency, a transmission coil for receiving the AC power to generate a time-variable magnetic field, and a transmission resonant coil unit for transmitting power received from the transmission coil coupled with the transmission resonant coil, wherein the wireless power transmitter determines a resonance frequency for a power transmission while controlling a frequency of the AC power output from the power supply unit and a resonance frequency of the transmission resonant coil unit.

Abstract: An uninterruptible power supply (UPS) system is provided. The UPS system includes a plurality of UPSs, a ring bus coupled to the UPSs, a plurality of chokes, and at least one static switch coupled between an associated UPS of the UPSs and the ring bus. Each choke electrically couples an associated UPS to the ring bus. The static switch is switchable to selectively bypass at least one choke.

Abstract: In retrodirective wireless power delivery environments wireless power receivers generate and send beacon signals that are received by multiple antennas of a wireless power transmission system. The beacon signals provide the charger with timing information for wireless power transfers and also indicate directionality of the incoming signal. As discussed herein, the directionality information is employed when transmitting in order to focus energy (e.g., power wave delivery) on individual wireless power receiver clients. Techniques are described herein for reducing the burden of sampling the beacon signals across the multiple antennas and determining the directionality of the incoming wave. In some embodiments, the techniques leverage previously calculated values to simplify the receiver sampling.