Abstract: A transmitter device for an inductive energy transfer system can include a DC-to-AC converter operably connected to a transmitter coil, a first capacitor connected between the transmitter coil and one output terminal of the DC-to-AC converter, and a second capacitor connected between the transmitter coil and another output terminal of the DC-to-AC converter. One or more capacitive shields can be positioned between the transmitter coil and an interface surface of the transmitter device. A receiver device can include a touch sensing device, an AC-to-DC converter operably connected to a receiver coil, a first capacitor connected between the receiver coil and one output terminal of the AC-to-DC converter, and a second capacitor connected between the receiver coil and another output terminal of the AC-to-DC converter. One or more capacitive shields can be positioned between the receiver coil and an interface surface of the receiver device.

Abstract: A scalable power source that includes a controller that is electrically connected to an engine component that generates electrical power and includes a modular connector that electrically connects the controller to plural auxiliary power sources or plural types of auxiliary power sources to provide a selected power output.

Abstract: A power transmission device includes power transmission coils arranged in a line in a plane, a power transmission circuit connected to the power transmission coils and supplying AC power, and a control circuit controlling a connection state between the power transmission circuit and each power transmission coil. The length of each power transmission coil in the array direction is shorter than that of the power receiving coil in that direction, the length thereof in a direction perpendicular to the array direction in the plane is longer than that of the power receiving coil in that direction, and the control circuit selects adjacent power transmission coils whose number is fixed based on the relative position of the power receiving coil with respect to the power transmission coils and switches the above connection state such that the AC power is supplied to the selected power transmission coils.

Abstract: Disclosed is an energy mixer having a first active diode coupled between a first input node and an output node, and a second active diode coupled between a second input node and the output node. A first capacitor is coupled between the first input node and a dynamic node, and a second capacitor is coupled between the second input node and a third node. Switching circuitry is configured to selectively couple the dynamic node between a fixed voltage node and the second input node in response to a control signal provided by control circuitry. When an output voltage at the output node is within a first range, the dynamic node is coupled to the fixed voltage node and when the output voltage is within a lower voltage second range, the dynamic node is coupled to the second input node such that first capacitor and second capacitor are coupled in series.

Abstract: A receiver configuration for a control unit in a vehicle having a voltage generator for generating a synchronization pulse, which includes a first voltage source, a current source and a current sink, the voltage generator generating the synchronization pulse within predefined specification limits having a predefined shape and a predefined time behavior, and the receiver configuration outputting the synchronization pulse for synchronizing a signal transmission via a databus to at least one sensor. A method is also provided for generating a synchronization pulse. The voltage generator generates the synchronization pulse via the current source and the current sink by charging and/or discharging a bus load essentially as a sinusoidal oscillation.

Abstract: A method of operating a wireless power transmission apparatus includes receiving information on rectifier output voltages from at least one wireless power reception apparatus; determining whether the rectifier output voltages are within a predetermined operating range, and controlling an impedance of the wireless power transmission apparatus based on a result of the determining.

Abstract: A power control apparatus includes: a first conversion apparatus that applies DC/DC conversion to direct current power from a power generator for generating power using natural energy, and outputs the resultant power; a second conversion apparatus that applies DC/DC conversion to the power output from the first conversion apparatus and charges a power storage unit with the resultant power, and also applies DC/DC conversion to power from the power storage unit and discharges the resultant power; a third conversion apparatus that supplies alternating current power to a power system and an alternating current load by applying DC/AC conversion to the power output from the first conversion apparatus and/or the power discharged by the second conversion apparatus; and a controller that causes the second conversion apparatus to perform the discharge so that the power output from the third conversion apparatus is higher than power consumed by the alternating current load.

Abstract: An inverter apparatus includes an input stage receiving DC electric power from a DC power generator for loading a DC voltage link, a DC/AC converter connected to the DC voltage link and feeding AC electric power into a power grid. The apparatus further includes a bidirectional connection for loading a battery out of the DC voltage link and for loading the DC voltage link out of the battery, and a controller operating the DC/AC converter and the bidirectional connection. The controller receives present values of relevant parameters of the battery including working data at least related to a state of charge and safety data indicating a safety state of the battery from a battery monitoring unit. The controller, in operating the bidirectional connection, considers the working data and is commanded by the safety data.

Abstract: A boost PFC converter includes a rectifier, a converter and an output stage comprising an output capacitor where the DC output voltage is provided across the output capacitor. The rectifier includes four rectifying elements connected in a full bridge configuration where the upper two of these four rectifying elements are thyristors and where the lower two are diodes. In that the thyristors are controlled such as to be open for only a part of each half period of the input voltage, the amount of current per half period that is passed to the output capacitor is controllable and can be made very small. Accordingly, the charge current for precharging the output capacitor can be controllably limited such that a bulky precharge resistor is not required anymore to avoid high inrush currents.

Abstract: Power systems and methods are disclosed herein. The systems and methods use a switching system coupled with a power source and subterranean pumps for pumping a resource from beneath a surface of earth. A first capacitor is between a first switching device and a first transformer, and stores electric energy received from the first transformer to activate the first switching device. A bias capacitor is between the first capacitor and the first switching device, and receives a bias voltage via a second transformer. The bias capacitor applies the bias voltage to the first switching device to prevent the first switching device from activating unless a combination of the voltage received by the first switching device via the first transformer and the bias voltage is at least as large as the activation voltage of the first switching device.

Abstract: There is provided a power supply apparatus for power converters which convert power generated by power generators into power to be supplied to a power system. The power supply apparatus includes a photovoltaic power cell for the power converters, the photovoltaic power cells generating power for supplying power of the power converters.

Abstract: A method and apparatus for independently controlling multiple power converter sources. In one embodiment, the method comprises determining a ratio of a first set point for biasing a first DC source to a power converter and a second set point for biasing a second DC source to the power converter, wherein the first and the second DC sources are serially-coupled to one another and coupled to an input bridge of the power converter by a filter; and determining, based on the ratio, relative switching times for driving a first diagonal of an input bridge of the power converter and a second diagonal of the input bridge to bias the first DC source proximate the first set point and the second DC source proximate the second set point.

Abstract: An energy storage system including a plurality of loads each converting direct current (DC) power stored in a battery thereof into alternating current (AC) power and outputting the AC power, a plurality of slave power controllers detecting zero crossing points of AC voltage signals output from one of the plurality of loads and controlling the plurality of loads in accordance with a control signal received from a master power controller, and the master power controller controlling the plurality of slave power controllers so as to control the plurality of loads in accordance with the control signal received from the master power controller after a preset time has lapsed since the detected zero crossing point.

Abstract: The subject-matter of the present invention concerns an electrical architecture for power distribution to subsea equipment comprising at least one variable speed drive, VSD, module, wherein said at least one VSD module comprises at least one self commutated line side converter including power semiconductor.

Abstract: A power control apparatus includes: a direct current bus serving as a path for supplying direct current power; a first conversion apparatus that applies DC/DC conversion to direct current power from a power generator for generating power using natural energy, and outputs the resultant direct current power to the direct current bus; a second conversion apparatus that applies DC/DC conversion to the direct current power and charges a power storage unit with the resultant direct current power, and also applies DC/DC conversion to direct current power from the power storage unit and discharges the resultant direct current power to the direct current bus; a third conversion apparatus that applies DC/AC conversion to the direct current power from the direct current bus and supplies alternating current power to a power system and an alternating current load; and a controller that controls driving of the first to third conversion apparatuses.

Abstract: Methods, systems and devices are provided for transferring energy between a mobile unit and another discrete unit. One such method involves a mobile unit configured as a vehicle. During this method, energy is stored with an energy storage configured with the vehicle. At least some of the stored energy is transferred from the energy storage to an energy receiver using an energy transmitter, where the vehicle is discrete from the energy receiver.

Abstract: A method for regulating a power transfer between a utility grid and a renewable energy system includes receiving a power transfer request from the utility grid at a controller of the renewable energy system that includes at least one of a desired power transfer level, power factor and energy or time duration of the power transfer. A SOC of an energy storage device of the renewable energy system and a power output of the renewable energy source are compared to respective SOC and power output thresholds, with the power transfer request being completed if the SOC and the power output are greater than the respective SOC and power output thresholds so as to cause the requested power to be transferred to the utility grid, and the power transfer request being denied if the SOC and the power output are less than the respective SOC and power output thresholds.

Abstract: Exemplary embodiments are directed to controlling impedance. A wireless power transmitter for controlling impedance comprises a transmit circuit configured to wirelessly transmit power to a plurality of receivers, each having a load resistance, within a charging region of the transmit circuit. The transmitter also comprises a controller configured to request each receiver of the plurality of receivers to adjust its load resistance to a value that achieves a target total impedance as presented to the controller.

Abstract: An electric vehicle comprises a cylinder lock including an operation key which is movable by a user's operation between a driving position and a charging position provided at a position different from the driving position and an output unit for outputting information indicative of a position of the operation key; and a main controller permits driving control and inhibits charging control when the operation key is moved to the driving position; and the main controller permits the charging control and inhibits the driving control when the operation key is moved to the charging position.

Abstract: An electronic device includes a case; a power source unit including a heat generation unit, the power source unit being configured to be inserted in the case and slidable between a stored state in which the power source unit is stored in the case and an exposed state in which at least the heat generation unit is exposed from the case; a detection unit configured to detect the stored state or the exposed state of the power source unit; and a control unit configured to control a load with respect to the power source unit, according to the stored state or the exposed state detected by the detection unit.