698 results about "Battery charger" patented technology

A system includes: an AC-DC converter; and a DC-DC converter, the DC-DC converter including: a first high voltage buck-boost converter having a secondary side connectable to a first high voltage battery; a second high voltage buck-boost converter having a secondary side connectable to a second high voltage battery; a first low voltage buck-boost converter having a secondary side connectable to a first low voltage battery; a second low voltage buck-boost converter having a secondary side connectable to a second low voltage battery; and one or more transformers having a primary side connected to the AC-DC converter and a secondary side connected to each of a primary side of the first high voltage buck-boost converter, a primary side of the second high voltage buck-boost converter, a primary side of the first low voltage buck-boost converter, and a primary side of the second low voltage buck-boost converter.

A first zinc-air battery module and a second zinc-air battery module are formed by connecting two zinc-air batteries in series, the two zinc-air batteries are located on the same plane, the first zinc-air battery module and the second zinc-air battery module are arranged in a mirror symmetry mode, the positive electrode part is close to the mirror surface position, and the negative electrode part is close to the mirror surface position. The gas diffusion partition plate is arranged between the first zinc-air battery module and the second zinc-air battery module, the first zinc-air battery module and the second zinc-air battery module are connected in series and then are connected with the charging wire, the first zinc-air battery module and the second zinc-air battery module are arranged in the shell together, and the side surface of the shell has air permeability. According to the internal oxygen type zinc-air battery power bank with the built-in positive electrode and oxygen introduction from the side face, the zinc-air battery power bank can be attached to the back face of a mobile phone and then can be flatly placed on a table top in the using process, and meanwhile the zinc-air battery power bank has the advantages of being light, rapid in charging, low in price and convenient to carry.

A stackable storage device, container or unit is provided. The storage device includes a storage compartment and an interface to recharge rechargeable batteries for power tools. The storage device is stackable within a modular storage system.

A system includes: an alternating current (AC) to direct current (DC) converter (AC-DC converter), the AC-DC converter connectable to a line voltage; and a DC to DC converter (DC-DC converter) connected to the AC-DC converter, the DC-DC converter including: a high voltage buck-boost converter having a secondary side connectable to a high voltage battery; a low voltage buck-boost converter having a secondary side connectable to a low voltage battery; and one or more transformers having a primary side connected to the AC-DC converter, a secondary side connected to a primary side of the high voltage buck-boost converter, and a tertiary side connected to a primary side of the low voltage buck-boost converter.

The present disclosure provides a multifunctional battery charger including: an installation component. An interior of the installation component is provided with an external charging component and a charging component, the charging component is provided below the external charging component, a front of a housing is provided with a charging indicator light and a magnetic charging head, the magnetic charging head is connected to a magnetic adapter, one end of the magnetic adapter is inserted into a charging port of a battery. Some battery charging ports are provided at one side, some battery charging ports are provided on a head portion. Whether on the side or the head portion, they can be charged flexibly, solve a problem that most charging plugs of existing chargers are fixed.

Data are optically transmitted from a power tool device, such as a power tool, a power tool battery charger, power tool pack adapter, and / or a battery pack. The data are stored in a memory of the power tool device and are encoded as optical signal data to provide an encoded representation of the stored data. An optical transmitter (e.g., a light emitting diode or a flat panel display) transmits the optical signal data, which are detected or otherwise received by an optical receiver device, which may include a camera or other photodetector. The optical signal data may include light signals generated by an LED, where the data are encoded using an encoding scheme that modulates one or more characteristics (e.g., amplitude, wavelength, color) of the generated light signals. The optical signal data may also include images (e.g., barcodes, QR codes) or characters.

A vehicle battery charger and a vehicle battery charging system are described and illustrated, and can include a controller enabling a user to enter a time of day at which the vehicle battery charger or system begins and / or ends charging of the vehicle battery. The vehicle battery charger can be separate from the vehicle, can be at least partially integrated into the vehicle, can include a transmitter and / or a receiver capable of communication with a controller that is remote from the vehicle and vehicle charger, and can be controlled by a user or another party (e.g., a power utility) to control battery charging based upon a time of day, cost of power, or other factors.

A charger for use with a battery pack having a latch. The charger comprises a charging bay defining a battery path and a lock including a member retractably extending into the charging bay transverse to the battery path. The member is positioned to overlap with the latch in the battery path regardless of a position of the latch lateral to the path direction.

A system comprises: a high voltage (HV) direct current (DC) to DC converter (HVDC) including: one or more transformers; a bridge driver connected to a primary side of the one or more transformers; and one or more bridge rectifiers connected to a secondary side of the one or more transformers, the one or more bridge rectifiers including one or more bridge rectifier switches; a low voltage (LV) DC to DC converter (LVDC) connected to the HVDC; and a boost converter including: an inductor connected to the one or more bridge rectifier switches; and one or more boost configuration switches operable, in combination with the one or more bridge rectifier switches, to configure the boost converter into each of a bypass configuration and a boost configuration, to regulate a voltage at the LVDC.

An electrical system includes a battery, temperature sensor, and battery charging station connectable to the battery and to an alternating current (AC) power supply. The charging station includes connected battery charging and heating circuits. The charging circuit includes a first plurality of power switches configured to rectify an AC input voltage from the power supply into a direct current (DC) voltage for charging the battery during a battery charging mode. The heating circuit includes a voltage bus, transformer, series switch, and a second plurality of power switches downstream of the transformer. The heating circuit generates an AC battery current from the DC voltage and injects the same into the battery during a battery heating mode. An electronic controller controls the power switches and the series switch to perform the charging and heating modes, doing so via a corresponding method.

Responsive to a voltage across a capacitor being greater than a voltage across a traction battery, a controller may open switches such that charge current from a DC charger flows through a diode to the traction battery without following through coils of an electric machine and without flowing through an inverter.

A battery charger is described that can support multiple battery applications with a single USB type-C port. An architecture can include a single charger transferring power to multiple battery stacks. The architecture can include a plurality of battery stacks each respectively housed in a distinct electronic device. The architecture is expandable from one charger with one USB type-C port coupled to a plurality of battery stacks, to a plurality of chargers with respective USB type-C ports all coupled to a plurality of battery stacks respectively housed in distinct electronic devices.

Methods and systems for charging a battery string while protecting against overcharging. One system includes: a pair of disconnect devices; a power distribution bus which is electrically connected to a battery string via the disconnect devices; a battery charger connected to supply battery power to the power distribution bus for charging the battery string; a module monitoring unit configured to sense individual battery cell voltages during charging; a first processor configured to activate one disconnect device to open when the sensed individual battery cell voltages indicate overcharging; a plurality of sensors connected to sense a full-string voltage measured across the battery string and first and second half-string voltages measured across first and second half-strings of the battery string; and a second processor connected to receive sensor data during charging. The second processor is configured to independently activate the second disconnect device to open when the sensor data indicates continued overcharging.

A battery includes at least one battery cell, a bidirectional port configured to provide current output to a load from the at least one battery cell and to receive a charge current from a battery charger to charge the at least one battery cell, a charge only port configured to receive charge current from the battery charger to charge the at least one battery cell, and a battery control system. The battery control system is configured to detect a connection status of the bidirectional port and / or the charge only port and, based on the connection status of each port, to control the battery between a power delivery mode where current can flow from the at least one battery cell out of the bidirectional port, a charge mode where current can from the bidirectional port or the charge only port to the at least one battery cell, and a disconnected mode where current cannot flow between the bidirectional port or the charge only port and the at least one battery cell.

A vehicle battery charger and a vehicle battery charging system are described and illustrated, and can include a controller enabling a user to enter a time of day at which the vehicle battery charger or system begins and / or ends charging of the vehicle battery. The vehicle battery charger can be separate from the vehicle, can be at least partially integrated into the vehicle, can include a transmitter and / or a receiver capable of communication with a controller that is remote from the vehicle and vehicle charger, and can be controlled by a user or another party (e.g., a power utility) to control battery charging based upon a time of day, cost of power, or other factors.

A method performed by battery charger configured to charge a vehicle battery, the method comprising charging the vehicle battery until a first measured voltage over the battery exceeds a first voltage threshold, halting charging for a third time period, measuring a second voltage over the battery at the end of the third time period, determining a battery type using a differential voltage, by calculating a difference of the first voltage threshold and the second voltage, and a set of predetermined conditions, wherein the predetermined conditions comprise:battery⁢ type={Udiff>UPb→lead-acid⁢ battery⁢ typeUdiff<ULi→lithium⁢ battery⁢ typeUPb>Udiff<ULi→unknown⁢ battery⁢ type

A vehicle battery charger and a vehicle battery charging system are described and illustrated, and can include a controller enabling a user to enter a time of day at which the vehicle battery charger or system begins and / or ends charging of the vehicle battery. The vehicle battery charger can be separate from the vehicle, can be at least partially integrated into the vehicle, can include a transmitter and / or a receiver capable of communication with a controller that is remote from the vehicle and vehicle charger, and can be controlled by a user or another party (e.g., a power utility) to control battery charging based upon a time of day, cost of power, or other factors.

A combined battery charger and engine jump start system configured to automatically determine in which operating mode to operate based on which output port a plug is attached to is disclosed. For instance, the system may include both a battery charger subsystem and an engine jump start subsystem, whereby each includes at least one output port. The system may include a port protector enabling only one of the battery charger subsystem and the engine jump start subsystem to receive a plug at a time.

An apparatus to communicate with a battery management system (BMS) of a battery includes a memory and a processor coupled to the memory. The apparatus further includes a first electrical conductor configured to connect the processor to a controller area network (CAN) bus connected to the battery management system (BMS) of the battery. The apparatus further includes a second electrical conductor configured to connect the processor to a first winding of a transformer of the battery. A second winding of the transformer is connected to a power line of the battery. The processor is further configured to receive first data from the BMS via the CAN bus. transmit second data based on the first data to the battery charger via the power line. receive third data from the battery charger via the power line. and transmit fourth data based on the third data to the BMS via the CAN bus.

An on-board battery charger (OBC) of an electric vehicle (EV) receives AC electrical power from a charge station and outputs a DC output current for charging a traction battery of the EV. In response to transients in the AC electrical power while the OBC is receiving the AC electrical power from the charge station and outputting the DC output current, a controller controls the OBC to (i) stop processing the AC electrical power from the charge station and reduce the DC output current and (ii) after the transients have passed, resume processing the AC electrical power from the charge station and increase the DC output current. At a zero-crossing event of the AC electrical power after the transients have passed, the OBC is controlled to resume processing the AC electrical power from the charge station and increase the DC output current.

Apparatuses, devices, and methods for operating a battery charger are described. A semiconductor device can include a controller that can monitor at least one battery parameter of a battery connected to a secondary stage of a two-stage battery charger. The controller can determine a threshold voltage based on the at least one battery parameter. The controller can regulate a midpoint voltage at the threshold voltage. The midpoint voltage can be provided by a primary stage of the two-stage battery charger to the secondary stage of the two-stage battery charger. The controller can operate the secondary stage in a non-switching mode to directly provide the midpoint voltage regulated at the threshold voltage to the battery.

A non-isolated bidirectional high-voltage direct current battery charger is made compatible with a ground-fault circuit interrupter (GFCI) at the DC output by adapting the power converter to control, in response to voltage or current sensors, a net current difference between forward current and return current to remain below a threshold of the GFCI. This can be done without compromising safety in the case of actual ground faults.

A power tool battery charger and method for adaptive charging and data transfer is disclosed. A power tool battery charger may include one or more charging docks, each charging dock including a charging interface for providing charging current, and an electronic controller including a processor and a memory. The electronic controller is configured to identify one or more battery packs received by the charging docks and determine battery information for the one or more battery packs. The battery information indicating tandem use information for the one or more battery packs, end-of-use information for the one or more battery packs, or user preference information. The electronic controller also charges the one or more battery packs based on the battery information.

A battery charger and a method of operating a battery charger. The charger may include a housing defining an air inlet and an air outlet; a charging circuit operable to output a charging current to charge a battery couplable to the battery charger; a tubular heat sink; and a fan operable to cause air flow from the air inlet to the air outlet and along the heat sink. The charger may include a first switch operable to electrically connect the charging circuit to a power source when the battery engages the charger; and a second switch operable to electrically connect the charging circuit to a battery terminal after the charger terminal is electrically connected to the battery terminal. The charging current or a fan speed may be adjusted based on at least one of the temperature of the charger or a temperature of the battery.

A charging cable management assembly configured to couple to a stationary vehicle battery charger, including an elongated frame configured to be coupled to the stationary vehicle battery charger; a movable support arm, coupled to the elongated frame, movable relative to the stationary vehicle battery charger and a battery electric vehicle (BEV) between a stowed and a deployed position relative; and a cable reel, attached to the movable support arm, deploying a retractable tether, configured to couple to a charging cable of the stationary vehicle battery charger, that assists a vehicle user moving the charging cable into electrical engagement with the BEV.

The disclosed techniques include reducing inrush current due to the bulk capacitance by pre-charging the bulk capacitance using a charge from a battery provided by a battery charging circuit. An example apparatus includes a switching circuit with an input terminal and an output terminal. The input terminal of the switching circuit is coupled to a power adapter. The apparatus includes a battery charging circuit with a first terminal and a second terminal. The first terminal of the battery charging circuit is coupled to the output terminal of the switching circuit. The second terminal of the battery charging circuit is coupled to a battery. The apparatus includes a bypass circuit with an input terminal and an output terminal, with its input terminal coupled to the output terminal of the switching circuit and the first terminal of the battery charging circuit. The apparatus includes a bulk capacitor coupled to the bypass circuit.

A charging cable management assembly can be part of a stationary vehicle battery charger for furnishing charge to vehicle batteries of battery electric vehicles (BEVs), as an example application. In an implementation, the charging cable management assembly has a cable support arm and a spring. The cable support arm moves about a pivot relative to an associated stationary vehicle battery charger during use. The cable support arm can move between a home position and a fully deployed position, as well as to less-than-fully deployed positions therebetween. The spring exerts a return biasing force to the cable support arm for bringing the cable support arm back to its home position after deployment and for keeping it there.

An EMI filtering circuit (1) for battery chargers of EV or HEV comprising: a plurality of filters (2a, 2b) for electro-magnetic disturbances connected in cascade to each other and provided with at least one coil (2a) comprising one ferromagnetic core (3) and at least one winding (4a, 4b) provided with one input end (6) and with one output end (7): a plurality of line capacitors (2b); one printed circuit board, PCB, (8) adapted to support the capacitors (2b) and connect them to each other; a plurality of connecting elements (10) adapted to electrically connect the coils (2a) to the PCB (8); wherein each of the output ends (7) of each coil (2a), except for the last one, is directly connected to a respective input end (6) of the next coil (2a) and is associated together with the respective input end (6) to a same connecting element (10).

Battery cell formation can include forming a SEI layer in a battery cell, evaluating the cell quality, grading the cells and removing any defect cells. A first switch can connect a first terminal of a battery charger with a first terminal of a first cell. A second switch can connect a second terminal of the first cell with a third switch. The second switch can connect a second cell with a first terminal of the battery charger. The third switch can connect the second switch with a first terminal of the second cell. A fourth switch can connect a second terminal of the second cell with a second terminal of the battery charger. The charger can provide a current to the first cell and to the second cell via the first switch and the third switch for battery cell formation of the first battery cell and the second battery cell.