Abstract: A battery pack includes a battery comprising at least one battery cell, a first switch electrically connected between the battery and an external terminal of the battery pack, and configured to be switched in response to a first control signal, a capacitor configured to stabilize a switching state of the first switch, a second switch electrically connected in parallel to the capacitor, and configured to be switched in response to a second control signal, and a battery protection unit configured to output the first and second signals.

Abstract: Vehicles that use electric power as a motive force may use accurate measurements of battery power for numerous purposes, e.g., battery characteristics, state of charge of the battery, travel distance remaining for the vehicle and the like. A traction battery measurement should be taken when the battery is fully relaxed, i.e., the battery is neither being charged nor providing power and a time period thereafter when the battery chemistry reaches a steady state. A controller or methods may determine if the battery is relaxed and if the battery is not relaxed, delay charging or discharging of the traction battery to allow accurate battery capacity determination. The controller may control a battery charger to ensure the battery is fully relaxed before sensing battery characteristics.

Abstract: A wireless power charging system includes a reception coil unit including an insulating layer, a first coil including a first body portion disposed as a spiral on one surface of the insulating layer and a first lead portion extending from one end of the first body portion and led out of the insulating layer, and a second coil including a second body portion formed on the other surface of the insulating layer and electrically connected to the other end of the first body portion through a via and a second lead portion extending from the second body portion and led out of the insulating layer. The second coil has a width larger than that of the first coil and has a thickness smaller than that of the first coil.

Abstract: A method for managing an electrical power generation facility including an electrical power generation device, a storage device, and a control module is described. The method includes: assessing a power generation capacity of the generating device for a given period; determining a weighted generation capacity on the basis of said assessed generation capacity and at least one assessed power generation capacity of said generation device over a period preceding said given period; and determining, for a period after the given period, a discharge limit for the storage device on the basis of said weighted generation capacity. A related computer program, control module, and facility are also described.

Abstract: A method for short detection in a battery pack, the battery pack including a plurality of cells, the method including: connecting a short detection module to the battery pack; determining by the short detection module that the battery pack is at rest; and selecting a first cell in the battery pack for testing for a short, wherein the testing includes: connecting a voltage source to the first cell; measuring a current of the first cell; and determining based on the measured current of the first cell whether the first cell contains a short.

Abstract: The invention discloses a passive equalization method for a lithium iron phosphate battery pack, comprising: determining a voltage range in which a State of Charge can be accurately queried for a cell in the battery pack, and determining a corresponding relation between a voltage at which a State of Charge can be accurately queried and the State of Charge; collecting an open circuit voltage of each cell in a quiescent state; judging whether the open circuit voltage is within the voltage range in which a State of Charge can be accurately queried; if the open circuit voltage is within the voltage range in which a State of Charge can be accurately queried, acquiring the State of Charge of the cell corresponding to the open circuit voltage according to the open circuit voltage and the corresponding relation between a voltage at which a State of Charge can be accurately queried and the State of Charge, and determining equalizing capacity of each cell according to the State of Charge of each cell; calculating equal

Abstract: A secondary battery charger system in which a chargeable power is calculated on the basis of a difference between a charging target voltage and a cell voltage using a charging control unit that controls a charger used to charge a secondary battery, the secondary battery charger system including a charging threshold voltage setting unit configured to set the charging target voltage to be lower than a charging limitation voltage which is an upper limitation of the cell voltage allowable in design. The charging control unit stops the charging if a predetermined charging stop condition is satisfied while the cell voltage exceeds the charging target voltage and is lower than the charging limitation voltage.

Abstract: A contactless feeding pad includes a power-receiving side pad, a power-transmitting side pad, and an auxiliary pad. The power-transmitting side pad is different from the power-receiving side pad in size or shape and transmits electric power contactlessly to the power-receiving side pad while being situated oppositely to the power-receiving side pad. The auxiliary pad is installed between the power-transmitting side pad and the power-receiving side pad in close proximity to the power-transmitting side pad or the power-receiving side pad and forms a resonance circuit.

Abstract: An information handling system receives power from a reversible power cable by selectively configuring outer pins to provide power or communication with a middle pin providing ground. A power manager of an information handling system embedded controller uses a low level of power input to determine which outer pin provides power and which provides communication, and then configures the connector to route power at a high level to the system charger for powering the information handling system.

Abstract: A charging system and a method are provided. The charging system includes a power supply device, a charging module and a battery module. The charging module is detachably connected with the power supply device, and connected with the battery module. The charging module includes a power converting unit, a voltage regulator and a charging controller. When the power supply device and the charging module are connected with each other, the power converting unit of the charging module is in the backward direction and uses the electric power of the battery module to pre-charge a bus capacitor. If the voltage of the bus capacitor is higher than or equal to a first threshold value because of pre-charge, the voltage of an adjusting terminal of the charging module is adjusted. Consequently, the charging system is in a normal working mode.

Abstract: A structure is provided. The structure may include an alignment mechanism used to align an electric vehicle in a parking lane of an electric vehicle charging station, and a coupler assembly including an arm and a charging coupler located in the parking lane and positioned beneath the electric vehicle, the charging coupler is positioned at one end of the arm, and is moveable in a vertical direction relative to the parking lane, and another end of the arm is pivotally mounted in the parking lane, where the charging coupler includes one or more electrical contacts in a shape of a right conical frustum extending from the charging coupler in the vertical direction.

Abstract: Embodiments describe a wireless charging device including a housing having a charging surface and first and second walls defining an interior cavity, and a transmitter coil arrangement disposed within the interior cavity and configured to generate a time-varying magnetic flux and an electric field during wireless power transfer, where each of the plurality of transmitter coils has a central axis positioned a lateral distance away from the central axes of all other transmitter coils of the plurality of transmitter coils.

Abstract: Disclosed is a charging apparatus mounted in a vehicle. The charging apparatus includes at least two power modules parallel to each other to convert input power applied from an outside into a charging power for charging a high-voltage battery, at least two slave controllers that outputs information about whether each of the power modules enters a constant-voltage charging mode, based on the charging power output from the power modules, and a master controller that determines whether the at least two power modules enter the constant-voltage charging mode by utilizing the information, which is received from the slave controllers, about whether each of the power modules enters the constant-voltage charging mode, wherein the master controller controls such that one of the power modules is operated when the power modules enter the constant-voltage charging mode.

Abstract: A charge and discharge device (10) includes: a battery unit (110) in which m (m is an integer of 3 or more) battery cells (112) that are connected in series are grouped into plural groups (114) including n (n is an integer equal to or larger than 2 and smaller than m) battery cells (112) that are continuously arranged and a part of the battery cells (112) that belong to a certain group is shared by a different group; a cell balance unit (120) that is provided for each group (114) and uniformizes voltages of the battery cells (112) that belong to the group (114); and a control unit (130) that stops the operation of the cell balance unit (120), when a voltage difference of the battery cells (112) that belong to an arbitrary one of the groups (114) is within a predetermined value, and when a total average voltage in all the battery cells (112) and a partial average voltage which is an average voltage of the battery cells (112) that belong to the arbitrary group (114) satisfy a specific condition, the cell balanc

Abstract: A power adapter, an electronic equipment, a battery charging system and a battery charging method are provided. The power adapter comprises a communication interface and charges via the communication interface a battery of the electronic equipment; during charging a battery, the power adapter is configured to: first charge the battery in a regular charging mode; when an output current value of the power adapter falls within a regular current range for a predefined time period, send a quick charge inquiry instruction to the electronic equipment; after receiving a quick charge command sent by the electronic equipment, adjust an output voltage according to battery voltage information fed back by the electronic equipment; and if the output voltage meets a quick charge voltage requirement predefined, adjust an output current and the output voltage according to a quick charge mode so as to charge the battery.

Abstract: Systems and control devices for charging and discharging a lithium-ion battery and relevant methods are provided. A variable frequency triggering oscillation charge-discharge device constructs an oscillation loop with a lithium-ion battery using an inherent impedance characteristic of the lithium-ion battery to charge and/or discharge the lithium-ion battery in the form of an oscillation current generated by the oscillation loop, to avoid direct current (DC) charge-discharge for the lithium-ion battery or battery pack that causes polarization and lithium precipitation of the lithium. Accordingly, the lithium-ion battery has longer battery life, higher charging threshold voltage, higher charge, and controlled internal temperature increase. Thus, the suitable temperature range for the lithium-ion battery is broadened.

Abstract: An electronic device is provided. The electronic device includes a housing having a first surface and a second surface, a display exposed through the first surface of the housing, a conductive coil disposed inside the housing and forming a portion of the second surface of the housing, a movable member operatively connected to at least a portion of the housing and including one or more magnets that generate a magnetic field that passes through the conductive coil, a first charging circuit electrically connected to the conductive coil for wirelessly receiving power from an external device using the conductive coil and supplying the received power to a battery of the electronic device, and a second charging circuit electrically connected to the conductive coil for supplying, to the battery of the electronic device, power that is induced in the conductive coil based on movement of the movable member.

Abstract: A portable, modular solar array. The array includes a support structure configured to support a plurality of solar panel modules in a side-by-side co-planar arrangement. The support structure can be configured to support the modules in an elevated position to provide an overhead structure that shades an underlying area. The solar panel modules include solar panels mounted on a frame in a planar configuration. The frame includes a pair of hooked mounting flanges at a first end and a pair of slotted mounting flanges at a second end that enable mounting of the module between opposing support bars of the support structure. The modules are in electrical communication with a battery for storage of electrical energy generated by the solar panels. The frames and the mounting flanges are further configured to enable stacking of a plurality of the modules for storage or transport.

Abstract: A jump-start kit includes a control unit with a safety circuit and a portable power bank. The power bank and control unit are capable of jump-starting a 12 V car battery as well as charging at least one 5 V portable electronic device. The safety circuit includes a jump-start relay operatively connecting a power supply of the portable power bank to positive and negative jumper cable jacks, a microprocessor, and a voltage input analyzer of the control unit to enable or disable the jump-start relay.

Abstract: Disclosed herein are systems and methods for providing wireless power. The method includes determining a route in an area for a charger vehicle, where the charger vehicle includes a primary wireless power transceiver. The method further includes determining a schedule according to which the charger vehicle travels along the route. The method also includes determining a number of repeater vehicles to deploy in the area to extend a range of the primary transceiver of the charger vehicle. Further, the method includes deploying the determined number of repeater vehicles into the area. Furthermore, the method includes coupling each of the repeater vehicles to the charger vehicle via a respective first wireless resonant coupling link.