Abstract: Systems and methods for controlling a vehicle having a traction battery with a plurality of cell groups each having a plurality of serially connected battery cells include balancing each cell of each cell group with a corresponding autonomous cell balancing circuit, and coupling a single output associated with each cell group to an associated battery monitoring circuit. An integrated driver and switch circuit adapts the voltage from an associated cell group for powering battery monitoring integrated circuits with a voltage range corresponding to a single cell voltage range to facilitate use of an existing battery monitoring integrated circuit design and subsequent input to a microprocessor-based battery controller. Cell balancing is performed at each cell with a battery monitor circuit associated with each group of cells.

Abstract: A Complementary Metal Oxide Semiconductor (CMOS) power switching circuit and a method for operating a CMOS power switching circuit are described. In one embodiment, a CMOS power switching circuit includes a voltage selection circuit configured to output the highest output voltage between an output voltage of a primary power supply and an output voltage of a backup power supply and a control circuit configured to connect a load circuit to either the primary power supply or the backup power supply by comparing the output voltage of the primary power supply with a power supply switchover level that is set as a function of the highest output voltage. The backup power supply serves as a voltage reference to set the power supply switchover level only when the output voltage of the primary power supply is lower than the output voltage of the backup power supply. Other embodiments are also described.

Abstract: A wireless power transmitter according to an embodiment includes a coil and a capacitor which resonate with a wireless power receiver. The coil includes a plurality of cell groups and a core which connects the cell groups with each other. Each of the cell groups includes a plurality of cells. Each of the cells is configured such that magnetic field generated by currents flowing through the cells are formed in a same direction. Each of the cell groups is adjacent to at least one cell group. Each of the cell groups and the core are configured as one conductive wire.

Abstract: A system and method for selectively connecting photovoltaic (PV) arrays of a PV power system in series and parallel arrangements is disclosed. A DC-to-AC power inverter in the PV power system is electrically coupled to a plurality of PV arrays to receive a DC output therefrom and invert the DC output to an AC output, with the DC-to-AC power inverter including a DC link that receives the DC output from the plurality of PV arrays. A contactor arrangement is positioned between the plurality of PV arrays and the DC-to-AC power inverter, with the contactor arrangement including a plurality of contactors that are switchable between an on state and an off state to selectively connect the plurality of PV arrays to the DC-to-AC power inverter in a specified arrangement, so as to control a level of DC voltage received by the DC-to-AC power inverter from the plurality of PV arrays.

Abstract: A wireless power supply apparatus for a capsule-type endoscope has three sets of coils that generate a magnetic field in directions that are orthogonal to each other, a gravity sensor that detects a gravitational direction, a coil selection section that selects a coil that generates a magnetic field in a gravitational direction that is detected by the gravity sensor, and a drive section that applies a current to the coil that the coil selection section selects.

Abstract: A system may include a switchover element configurable to source or sink power from or to an electronic device electrically coupled to the switchover element and a controller in communication with the switchover element. The controller may be configured to determine if the electronic device is healthy. When the electronic device is healthy, the controller may configure the switchover element to deliver power from the electronic device to the system andconfigure the switchover element to provide the power to any unhealthy electronic device electrically coupled to the system.

Abstract: The present invention relates to a wireless power transmission method for preventing frequency interference, and more particularly, to a wireless power transmitter and a wireless power transmission method for preventing frequency interference that flexibly controls an operation of the wireless power transmitter in order to avoid signal interference and collision between different apparatuses using frequencies adjacent to a frequency band of a power signal transmitted from the wireless power transmitter.

Abstract: For levelling the partial powers which flow at a grid connection point between a multi-phase AC power grid having a plurality of phase conductors and a unit for feeding electric energy into the AC power grid having a multi-phase inverter as well as electric consumer loads connected to the AC power grid, via the individual phase conductors, differences between the partial powers flowing via the individual phase conductors are determined and are reduced by feeding different partial powers with the inverter into the individual phase conductors.

Abstract: A technique includes selecting a first device from a plurality of interconnected devices to form a root of a power tree connecting the interconnected devices and allocating power among neighbors of the interconnected devices in a direction along the tree away from the root. The technique includes determining whether at least one of the interconnected devices needs power after the allocation of power among the neighbors and selectively further allocating power among the neighbors in a direction along the tree toward the root based on the determination.

Abstract: A wireless power transmitting device for a wireless power communication system. The wireless power transmitting device includes: a circuit board including an insulating layer and a ground formed on the insulating layer; a core of a magnetic substance disposed on the circuit board to have a concave portion; a wire-wound coil accommodated in the concave portion to have one end for receiving a power through the circuit board and the other end connected to the ground; and a metal layer disposed between the core and the insulating layer to be connected to the ground.

Abstract: Systems and methods for controlling a hybrid power architecture to provide fuel or energy savings. Recharge time of an energy storage device (ESD) is reduced through the application of a controlled potential and ESD recharge time management over the life of the hybrid system through manipulation of the ESD charge state window of operation. Fuel or energy savings is achieved by controlling the partial-state-of-charge (PSOC) window of the ESD based on a recharge resistance profile of the ESD and by controlling a charging potential applied to the ESD based on a recharge current and/or the estimated recharge resistance profile of the ESD.

Abstract: A power distribution device includes a number (N, N?2) of power input terminals, a number (M, M?2) of power output terminals, and a number (M) of power distribution circuits, each electrically coupled to a corresponding one of the power output terminals and electrically coupled to a number (P, P?2) of the power input terminals. Each of the power distribution circuits includes a number (P) of diodes each electrically coupled between a respective one of the power input terminals and the corresponding one of the power output terminals, a switch element connected in parallel to one of the diodes, and a controller controlling the switch element to operate in a conducting state when the controller determines that power received at the power input terminal connected to the switch is normal, and controlling the switch element to operate in a non-conducting state when the power is abnormal.

Abstract: A power supply circuit generates the internal power supply voltage intVCC from a first power supply capable of supplying a first power supply voltage V1 and a second power supply capable of supplying a second power supply voltage V2, which is lower than the first power supply voltage V1. A first transistor TR1 is provided between the first power supply and an output node, whereas a second transistor TR2 is provided between the second power supply and the output node. A first supply unit supplies the inverted value of an output voltage of the first power supply or the inverted value of a voltage corresponding to the output voltage of the first power supply, to the gate input of the first transistor TR1. A second supply unit supplies the output voltage of the first power supply or the voltage corresponding to the output voltage of the first power supply, to the gate input of the second transistor TR2.

Abstract: A wind turbine park (242) connected to a transmission system (234). The wind turbine park includes a component (230) for determining a short circuit ratio and based thereon for determining a parameter adjustment recipe, and a controller (238) for controlling an output of the wind turbine park, the controller (238) executing a control algorithm using a determined parameter adjustment recipe, the determined parameter adjustment recipe responsive to the short circuit ratio and determined within the component (230) or within the controller (238).

Abstract: A network system capable of effectively managing an energy source has a first component and a second component. A first communicator is connected to the first component, and a second communicator is connected to the second component. The first communicator allows communication between the first component and the second component. Communication information between the first component and the second component has information related to energy. The first communicator has a memory that stores information received from the first component and information received from the second component. The first communicator transmits the information stored in the memory to the second communicator when the first communicator receives a message for requesting the information from the second communicator.

Abstract: A pulse generator system and method, including an inductive storage device configured to perform a charging process using a high current received from a first power supply; and a switch that is powered by a second power supply and configured to receive a step signal through a gate driver for controlling a repetition rate of the inductive storage device charging process and a pulse repetition frequency (PRF) of an output pulse.

Abstract: An electrical system for an automotive vehicle has a plurality of electrical generating machines having field windings energized by pulse width modulated drive signals generated by an external electronic voltage regulator. The pulse width modulated drive signals have a duty cycle determined by the electronic voltage regulator. A controller selects one of electrical generating machines to evaluate for failure and evaluates that electrical generating machine for failure by causing the PWM drive signal for the field windings of that electrical generating machine to be disabled. The controller then determines that this electrical generating machine has failed if the duty cycle for the PWM drive signals has then not been increased by the electronic voltage regulator by a pre-determined amount. The electrical generating machines are either generators or alternators. In an aspect, the PWM drive signals for the plurality of electrical generating machines are out of phase with each other.

Abstract: A process of implementing, or engineering, topology-dependent functions based on a formal description of the Substation Automation system, includes performing a topology analysis of the current single line state. A topology interpreting implementation replacing complex topology analysis logics can include the project specific static single line topology and the connection to the real process state data. All information can be delivered in an IEC 61850 conforming SCD file. The interface description for controlling and monitoring the load transfer application can be generated automatically from the SCD file.

Abstract: A method is proposed for actuating an electromagnetic load (3) which can be switched between at least two switching states, particularly a magnetic valve, wherein switching between a first and a second of the switching states takes place as a result of a current flowing through the load (3) by means of applying an electrical voltage to said load (3). Provision is thereby made for the voltage to be clocked upon application thereof to said load (3) if due to the applied voltage the switching process would occur without clocking outside of a current ramp-up. The invention furthermore relates to an electrical circuit for actuating an electromagnetic load (3).

Abstract: An alternating current conversion method and system are disclosed that can adapt to varying voltages of the direct current sources. An exemplary system includes a first and second connection arrangements for the voltage sources such that the direct current can be supplied to the DC/AC converter selectively in the first connection arrangement or the second connection arrangement. The selection between the first and second connection arrangements is made on the basis of the voltage levels of the voltage sources such that a proper voltage is supplied to the DC/AC converter. The numbers of the voltage sources in the connection arrangements are selected such that the first and second connection arrangements have different numbers of the voltage sources connected in series, the voltage sources being also grouped in parallel groups.