Abstract: A power transmission method for a wireless power transmitter, the power transmission method including transmitting sequentially a plurality of sensing signals to a wireless power receiver through transmission coils to sense a presence of the wireless power receiver; identifying transmission coils that receives a signal strength indictor transmitted from the wireless power receiver in response to the plurality of sensing signals; selecting, as a power transmission coil, a transmission coil that receives a signal strength indicator having the largest amount or the largest value among the transmission coils, receiving, from a wireless power receiver, a foreign object detection (FOD) status packet including information on a reference quality factor or a reference peak frequency; determining whether a foreign object is present in a charging area of the wireless power transmitter based on the FOD status packet; and generating a foreign object detection indicator indicating whether the foreign object is present in t

Abstract: A system for providing power to an unpowered vehicle by a powered vehicle has a line arrangement with multiple lines representing inputs, each of which includes at least one power line for supplying power. A merging unit combines the power lines of the line arrangement to a total voltage on a common voltage line. The line arrangement and the merging unit are to be arranged on the powered vehicle to provide power to the unpowered vehicle.

Abstract: The ground power supplying apparatus includes a communication device for directly communicating with the vehicle by short range wireless communication with a communication distance of less than 10 meters, and a controller configured to control power transmission by the ground power supplying apparatus. If the communication device receives vehicle identification information from a second vehicle during supply of power from the ground supplying apparatus to a first vehicle, the controller is configured to stop supply of power to the first vehicle when the communication device receives the vehicle identification information from the second vehicle.

Abstract: Various disclosed embodiments include illustrative controller modules, direct current (DC) fast charging devices, and methods. In an illustrative embodiment, a controller module for a DC-DC converter includes a controller and computer-readable media configured to store computer-executable instructions configured to cause the controller to receive an input voltage Vin to the DC-DC converter, receive an output DC voltage Vo from the DC-DC converter, generate control signals configured to control a charging output of the DC-DC converter responsive to the received input voltage Vin and output voltage Vo, and output the generated control signals to the DC-DC converter.

Abstract: A station for a lawn mower for charging a storage battery included in the lawn mower that autonomously travels and perform specified work, the station including: a base that stores the lawn mower; and a power supply device that supplies electric power to the storage battery included in the lawn mower when the lawn mower is stored in the base, in which the power supply device or the base includes power supply means for supplying electric power from the power supply device to power receiving means for supplying received electric power to the storage battery included in the lawn mower, and the power supply device is attachable to and detachable from the base.

Abstract: A machine includes a plurality of battery string modules that supply electric current to an inverter of the machine. The machine also includes a control system that opens at one contactor coupled to at least one battery string module of the plurality of battery string modules to disconnect the at least one battery string module. The other battery string modules of the plurality of battery string modules, apart from the at least one battery string module, continue supplying electric current to the inverter of the machine while the at least one battery string module is disconnected.

Abstract: A device for detecting an attachment and detachment of a portable device according to example embodiments of the present disclosure may include a first terminal and a second terminal configured to be connected to the portable device; a pull-up circuit connected to the first terminal; a charging circuit configured to generate an output voltage for charging the portable device; and a controller configured to control the charging circuit to generate the output voltage when a voltage of the first terminal drops in a detachment state, and determine whether to transition to an attachment state based on an output current output through the first terminal during a first period in which the output voltage is generated.

Abstract: The utility model discloses an angle self-adjusting wireless charging device, which comprises a main body shell and a first wireless charging device arranged at the upper end of the main body shell, the first wireless charging device is vertically and rotationally connected with the main body shell and driven by a first motor, a panel turntable which can rotate horizontally is arranged on the first wireless charging device and driven by a second motor, and the first motor and the second motor are connected with a mainboard located in the main body shell. A control signal generated after power-on is transmitted to the first motor or the second motor to drive the first wireless charging device to rotate vertically or horizontally, or the first motor and the second motor are controlled by buttons to drive the first wireless charging device to rotate vertically or horizontally.

Abstract: A system and method for controlling charging of a plurality of battery cells includes a cell voltage detector determining a top-of-charge voltage for each of the plurality of battery cells. An imbalance circuit compares the top-of-charge voltage for each of the plurality of battery cells to an imbalance threshold and determines a first battery cell of the plurality of battery cells is above the imbalance threshold by an imbalance amount. A shunt control circuit determines an imbalance shunt time for the first battery cell based on the imbalance amount and controls discharging the first battery cell for the imbalance shunt time toward the imbalance threshold.

Abstract: The disclosure is based on a method for the adaptive rapid charging of a battery pack, in particular of an interchangeable battery pack for electric machine tools, by way of a battery charger, wherein, in at least one method step, at least one charging parameter of the battery charger is adjusted depending on at least one parameter of the battery pack. It is proposed, in at least one method step, for the at least one charging parameter to be adjusted depending on at least one charging characteristic diagram that is typical for the battery, is stored in a storage unit of the battery pack and contains at least predefined values of a voltage, temperature and/or current suitable for a charging procedure for the battery pack.

Abstract: An electronic device and a protective cover having a magnetic structure with multiple opposing poles on a surface for use with magnetically sensitive components is provided. The magnetic structure is configured for aligning the electronic device and the protective cover, and creating a separable magnetic attachment between the electronic device and the protective cover. The magnetic structure includes more than three magnetic sections arranged in a linear configuration, with each of the magnetic sections magnetized in a direction perpendicular to first and second surfaces of the magnetic structure. The magnetic structure generates flux densities having similar magnitudes relative to the first and second surfaces as a function of distance from each surface, respectively, along a perpendicular axis. Adjacent magnetic sections are magnetized in opposing directions such that the magnetic structure does not impair normal operation of a camera, a compass, and an inductive charger in the electronic device.

Abstract: Operational instability is prevented without compromising the state transition speed. A mask control circuit is a circuit which generates a mask signal masking a control signal during a period in which a voltage level of a monitoring target terminal to be monitored is transitioning. The mask control circuit includes: a first input port which receives a signal supplied to the monitoring target terminal; a second input port which receives a signal representing the voltage level of the monitoring target terminal; a logic circuit which determines whether the voltage level of the monitoring target terminal is in transition based on signals received from the first input port and the second input port; and an output port which outputs a signal indicating a determination result of whether the voltage level of the monitoring target terminal is in transition as the mask signal.

Abstract: A system for inductive charging is provided. The system comprises a magnetic structure having one or more pieces that include substantially flat first and second surfaces. Each piece includes at least two magnetic poles of opposite polarity located at each of the first and second surfaces such that each piece includes at least two pairs of opposing magnetic poles oriented to cause magnetization in two opposing directions. The magnetic structure creates a magnetic field with flux densities having substantially similar magnitudes relative to the first and second surfaces as a function of distance from the first and second surfaces, respectively, along an axis that runs perpendicular to the first and second surfaces. The magnetic field does not impair normal operation of a magnetically sensitive component. The magnetic structure is configured to create a magnetic attachment between devices and to align the charging and receiving coils in the devices.

Abstract: This invention discloses a charging method for series rechargeable battery cells. This invention comprises a Total Voltage Follow-up Procedure (TVFP) in combination with an Artificial Intelligent Equalizing Procedure (AIEP). The TVFP detects deviation of a total voltage and accordingly modifies a trigger voltage for voltage equaling procedure; the AIEP controls the voltage difference of the series battery cells within a predetermined range.

Abstract: A circuit is provided, including first and second input terminals (110, 112) an output terminal (114), a DC-to-DC converter (120), and a trifilar choke (130) including a first inductor (140) connected between the first input terminal (110) and a first input terminal (150) of the converter (120), a second inductor (142) connected between the second input terminal (112) and a second input terminal (152) of the converter (120), and a third inductor (144) connected between the output terminal (114) and an output terminal (154) of the converter (120). The converter (120) is configured to convert a first voltage (V1) received at its first and second input terminals (150, 152) to a second voltage (V2) at its output terminal (154) higher than the first voltage (V1).

Abstract: A wireless charging device includes a driver unit configured to generate one of a first AC voltage signal having a first frequency and a second AC voltage signal having a second frequency. Also, the wireless charging device includes a transmitting unit having a first coil and a first capacitor and configured to transmit the first AC voltage signal. Further, the transmitting unit includes a second coil and a second capacitor and configured to transmit the second AC voltage signal. Additionally, the wireless charging device includes a control unit configured to detect a first receiver device operating at the first frequency based on a change in a first voltage in the transmitting unit, and detect a second receiver device operating at the second frequency based on a change in a second voltage in the transmitting unit.

Abstract: A charging apparatus includes a control unit configured to determine an average ion concentration, a surface ion concentration and a solid phase potential for anode particles and an electrolyte potential in an anode, using a predefined electrochemical reduced order model. The control unit is further configured to determine a side reaction rate from the solid phase potential and the electrolyte potential. The control unit is further configured to reduce the magnitude of the charging current applied to a secondary battery based on at least one of a cutoff voltage, the surface ion concentration and the side reaction rate.

Abstract: A system and method of using wireless charging to redistribute power resources within a mesh network. The method includes monitoring, by a processing device of a control node of the mesh network, a plurality of nodes of the mesh network to obtain a power distribution (PD) report comprising a plurality of battery levels associated with the plurality of nodes. The method includes identifying a first node of the mesh network having a first battery in a first deficit power state based on the PD report. The method includes identifying a second node of the mesh network having a second battery in a second surplus power state based on the PD report. The method includes transmitting a message to the second node of the mesh network to cause the second node to wirelessly charge the first battery of the first node.

Abstract: A method and an apparatus for controlling power in a wireless power transfer system are disclosed. A method for controlling power of a main device in a wireless power transfer system comprises the steps of: receiving information necessary for power control from a plurality of peripheral devices; identifying the actual power consumption state of the plurality of peripheral devices on the basis of the information necessary for power control, and determining a reference peripheral device on the basis of the actual power consumption state; and determining output power in consideration of the reference peripheral device.

Abstract: In a control unit for a battery system, the control unit includes: an input node configured to receive a sensor signal indicating a state of at least one of a plurality of battery cells of the battery system; a first microcontroller configured to generate a first control signal based on the state of the at least one battery cell; a first communication interface configured to receive a second state signal indicating an operation state of a second microcontroller; and a switch control circuit configured to: receive the first control signal; generate a second control signal based on the state of the at least one battery cell; and transmit one of the first and second control signal to a power switch of the battery system based on at least one received state signal indicating an operation state of the first microcontroller and of an operation state of the second microcontroller.