Abstract: An accumulator battery, comprising at least: first and second stages electrically connected in series, each stage including at least first to third accumulators electrically connected in parallel. There are at least first and second current limiters via which the first to third accumulators of said first stage are connected in parallel and via which the first to third accumulators of said second stage are connected in parallel.

Abstract: A wireless power supply device that is installed in a parking space in which a vehicle can stop and that has a power-supplying coil which wirelessly supplies electric power to a power-receiving coil of the vehicle is provided. The wireless power supply device includes a vehicle wheel detecting unit that is installed in the parking space in which the vehicle can stop and that detects vehicle wheels of the vehicle and traveling assistance means that assists with traveling of the vehicle such that the power-receiving coil and the power-supplying coil have a power-suppliable positional relationship depending on a detection result of the vehicle wheel detecting unit.

Abstract: An apparatus includes a digital battery charger. The digital battery charger includes an analog-to-digital converter (ADC) to convert a terminal voltage of a battery to a first digital signal. The digital battery charger further includes a digital controller coupled to the ADC to receive the first digital signal and provide a set of control signals. The digital battery charger further includes a current digital-to-analog converter (IDAC) coupled to the digital controller to receive the set of control signals and to provide a battery charging current signal.

Abstract: Electric and plug-in hybrid vehicles connect to Electric Vehicle Supply Equipment (EVSE) to recharge a traction battery. Existing standards define the signal interface between the vehicle and EVSE including control pilot and proximity detect signals. The vehicle may use the status of these signals to detect when a connection is established with EVSE. The vehicle may indicate a connection when the signals provide conflicting statuses. The vehicle may prevent driving off and permit charging in the event of a proximity detect signal indicating a state of engagement other than connected as long as a valid control pilot signal is present. The status of the control pilot signal may be utilized to prevent drive-off and permit charging.

Abstract: It is possible to limit the use of non-authentic battery packs. A battery control IC (200) includes an authentication circuit (208) and a charge/discharge control circuit (210). The charge/discharge control circuit (210) controls charging and discharging of a battery (22). The authentication circuit (208) performs a process for performing an authentication with a host device. The authentication circuit (208) is configured to perform a process associated with a first authentication in a common key system. The charge/discharge control circuit (210) is configured to perform a control to enable a discharge operation when the first authentication is established.

Abstract: A universal power delivery cable includes a first connector, a second connector, and a power delivery controller. The first connector is used for coupling a host, wherein the host has a power delivery function. The second connector is used for coupling an electronic device. When the first connector is coupled the host, the second connector is coupled the electronic device, and the electronic device does not have the power delivery function, the power delivery controller makes the electronic device imitate to have the power delivery function. After the power delivery controller makes the electronic device imitate to have the power delivery function, the host charges the electronic device according to a specification of the power delivery function and a specification of the electronic device.

Abstract: The disclosed systems and methods are directed to a battery assisted charging station. A battery system comprising plurality of batteries and a battery management system software controlling the operations of the battery system, function together with a vehicle charging system that charges electric vehicles using one or both of stored power provided by a battery system, and power provided by a utility power grid. The battery system uses the power grid to charge the batteries therein.

Abstract: Embodiments include methods, systems, and computer program products of a Wi-Fi charging system. An example Wi-Fi charging system includes a plurality of chargeable devices (CD) configured to be charged wirelessly. The plurality of chargeable devices is grouped into a fully charged group, and a need-charging group according to a charging status of each of the plurality of chargeable devices respectively. The Wi-Fi charging system also includes at least one access point (AP) that wirelessly charges the chargeable devices using a Wi-Fi communication network. The access point uses a first AP channel to transmit a plurality of data packets to the chargeable devices in the fully charged group, and a second AP channel to transmit a plurality of data packets and a plurality of charging packets to the chargeable devices in the need-charging group.

Abstract: The present application relates to an active equalization method and system of a lithium iron phosphate (LFP) battery pack.

Abstract: A band-type electronic device and an antenna module included therein are provided. The band-type electronic device includes a band configured to be worn on a body of a user, a metal housing configured to connect to the band, and a frequency control module configured to operate such that the metal housing is used as a wireless charging antenna.

Abstract: A method for controlling the charging of multiple electric vehicles operating in a geographic area may include inputting a tariff schedule into a control system. The tariff schedule may identify the cost of energy at different times in the geographic area. The method may also include receiving data from the multiple electric vehicles. The data may include at least the state of charge of the vehicle. The method may further include sending instructions to at least one vehicle of the multiple electric vehicles. The instructions may include directives on charging based at least on the tariff schedule and the received data.

Abstract: A voltage detection device for detecting a voltage across both ends of each of plural unit batteries which are connected to each other in series. The voltage detection device includes lowpass filters which are connected to the respective unit batteries, a first voltage detector which detects a voltage across both ends of each of the unit batteries that is supplied via a corresponding lowpass filter, a second voltage detector which detects a voltage across both ends of each of the unit batteries that is supplied without passage through the corresponding lowpass filter, and a failure detector which detects whether the lowpass filter is failing by comparing a voltage detection value detected by the first voltage detector with a voltage detection value detected by the second voltage detector.

Abstract: In a general aspect, a battery pack can include a battery configured to supply power to a connected device and to receive re-charge power from a charger circuit. The battery pack can further include a current modulating circuit configured to modulate current of the battery between first and second supply terminals of the battery pack. The battery pack can also include a controller configured to provide voltage protection of the battery pack and charge current control of the battery using the current modulating circuit. The controller can be configured, while the battery is being charged, to compare, at the battery pack, a charge voltage setpoint of the battery pack with a desired charging voltage; modify, at the battery pack, the charge voltage setpoint to achieve the desired charging voltage; and provide the modified charge voltage setpoint from the battery pack to a connected device.

Abstract: USB charger apparatus and chargeable electronic devices are presented in which the device and charger use USB cable data lines to establish a bidirectional communications connection, and the charger provides charger capability information to a master controller of the electronic device via the communications connection. The device controller preferentially selects a fastest charging match between the charger capability information and device charging capability information, and sends configuration information through the communications connection to set the power supply level of the charger. The charger communicates power supply status information to the electronic device, and the device can reconfigure the charger power supply level accordingly.

Abstract: A case for an electronic device includes a front member having an aperture for interacting with a touchscreen of the electronic device and a back member that includes a rechargeable power cell, a switched electrical interface, an electromechanical switch, and current monitoring circuitry. The switched electrical interface has an enabled mode in which electrical current is permitted to flow from the rechargeable power cell of the case to the installed electronic device and a disabled mode in which the electrical current is not permitted to flow to the installed electronic device. The electromechanical switch transitions the switched electrical interface from the disabled mode to the enabled mode. The current monitoring circuitry automatically toggles the switched electrical interface from the enabled mode to the disabled mode when the magnitude of the electrical current flowing from the case to the electronic device decreases to a predetermined value.

Abstract: Accurate and reliable techniques for wirelessly powering a tablet device are disclosed.

Abstract: Embodiments of the present invention allow multi-space meters and gated parking systems to separately manage and control electric vehicle charging stations located in conjunction with parking spaces. Control is implemented by the meters or other management systems providing codes, for example by printing them on a parking pass or receipt. When entered into the electric vehicle charging station, the code initiates a predetermined interval of charging, or an interval of charging selected by the patron during a transaction with the meter. The code is typically a multi-digit number, and may be encrypted to resist fraud. Data representative of the receipt, including the code, may be made available from an online server and delivered to a parking patron's smartphone or other portable device, whereby parking and vehicle charging may be obtained without first visiting a parking management kiosk and then returning to the vehicle to initiate charging.

Abstract: A circuit arrangement for charging a DC link capacitor with electrical energy from a charging battery includes a first switching element. The first switching element can optionally electrically connect a first connection contact of the circuit arrangement for the charging battery to a second connection contact of the circuit arrangement for the DC link capacitor. The circuit arrangement also includes an electrical pre-charging resistor that can connect in parallel with the first switching element. The circuit arrangement also includes two second switching elements that can be connected in series with the pre-charging resistor and in parallel with the first switching element.

Abstract: The invention relates to an electrical vehicle (100), including an electric engine (102) and on-board energy storage means (104, 106) that are electrically connected to the engine in order to supply same with electrical energy, in which the energy storage means include a first energy storage module (104) including at least one supercapacitor, and a second energy storage module (106) including at least one battery, the first and the second energy storage modules (104,106) being arranged on parallel electrical branches, the vehicle including interconnection means (108), arranged between the energy storage means (104, 106) and the engine (102), capable of electrically connecting the two electrical arms to the engine (102) and configured such that a single one of the two electrical arms is connected to the engine (102) at a time. The invention also relates to a facility comprising the vehicle (100) and at least one station (200) for recharging the vehicle.

Abstract: In general, techniques are disclosed for efficiently transferring power from a portable power bank to an electronic device. More particularly, a disclosed power bank incorporates a switching mechanism capable of routing battery voltage (novel) or a stepped-up voltage (e.g., from a boost regulator) directly to a common portion of an output connector. In addition, electronic devices as described herein also incorporate a switching mechanism to allow them to accept direct battery output (novel) or a stepped-up voltage at a common portion of the device's connector (e.g., a USB connector). When used in combination, the disclosed portable power bank can transfer power to the electronic device with no more than half the loss attributable to voltage conversion operations of the prior art.