Abstract: A wireless charging device, a wireless charging case and a wireless charging method thereof are provided. The wireless charging device includes a wireless signal transmitter, a controller and a temperature sensor. The wireless signal transmitter is configured to transmit an electromagnetic signal. The controller is coupled to the wireless signal transmitter. The temperature sensor is coupled to the controller. The temperature sensor is configured to detect an ambient temperature to obtain a temperature sensing value. The controller controls the wireless signal transmitter to adjust a frequency or a transmitting position of the electromagnetic signal according to the changing state of the temperature sensing value.

Abstract: A discharging circuit discharging electrical charges of an external energy storage device coupled to a power transmission line coupled between a power supply device and a load is provided. The discharging circuit includes a current-limiting unit, an internal energy storage unit, a voltage detection unit and a discharge unit. The current-limiting unit is coupled between the power transmission line and a first node. The internal energy storage unit is coupled between the first node and a ground node. The ground node receives a ground level. The voltage detection unit detects a level of the first node. The discharge unit is coupled between the power transmission line and a second node. When the level of the first node is less than a pre-determined level, the voltage detection unit directs the second node to couple to the ground node.

Abstract: A method for automatically selecting a recharging mode of an electric vehicle includes: identifying a first recharging mode corresponding to a duty cycle of a received pulse width modulation signal, performing a first recharge process corresponding to the identified first recharging mode, identifying a second recharging mode according to the duty cycle of the received pulse width modulation signal when the first recharge process fails; and performing a second recharge process corresponding to the second recharging mode when the second recharging mode is identified.

Abstract: A lithium battery control circuit and a lithium battery charger are provided. The lithium battery charger includes the lithium battery control circuit. The lithium battery control circuit includes a smooth transition circuit and an off-time control circuit. The smooth transition circuit generates a first voltage according to a sense current signal and a feedback signal, and generates a second voltage according to a mode signal. The smooth transition circuit compares the first voltage with the second voltage to generate a reset signal. The off-time control circuit converts the feedback signal to generate a first current by a voltage-to-current mechanism, and generates a set signal by using the first current and a duty ratio signal. The invention may prevent a surge current and an oscillation phenomenon by the smooth transition circuit. A switching frequency and a ripple size of an output current are controlled by the off-time control circuit.

Abstract: An all-solid-state battery system includes: an all-solid-state battery; a light detection unit; and a control unit. The all-solid-state battery includes a battery element having a positive electrode layer, a negative electrode layer and a solid electrolyte layer. The light detection unit detects light emitted from at least one of the positive electrode layer and the negative electrode layer. The control unit controls charge of the all-solid-state battery on the basis of intensity of light detected by the light detection unit.

Abstract: First and second detectors and first and second forced stop circuits are included in a charger including an AC/DC converter having a PFC circuit that converts AC power supplied from an external AC power supply into DC power and a smoothing capacitor, and a DC/DC converter that transforms power output by the AC/DC converter and supplies the transformed power to a vehicle-mounted battery. The first and second detectors detect voltage applied to the vehicle-mounted battery. The first forced stopper determines whether or not voltage detected by the first detector exceeds a predetermined threshold, and causes the DC/DC converter to stop when the predetermined threshold is exceeded. The second forced stopper determines whether or not voltage detected by the second detector exceeds the threshold, and causes the DC/DC converter to stop when the threshold is exceeded.

Abstract: A control system and control method for a phase shifted full bridge charger, wherein, the control system comprising a sampling system and a charger controller, the charger controller comprises a start and running determination unit, a soft start control unit, a running control unit and a smooth switchover control unit; the running control unit comprises a mode determination unit, a constant-voltage control unit, a total-current-limiting control unit and a charging-current-limiting control unit.

Abstract: An isolated DC/DC converter (3) includes a full-bridge type switching circuit. A primary winding of a transformer (6) and a resonance reactor (5) are connected in series to each other. Another end of each of the primary winding and the resonance reactor (5) is connected to one of middle points between switching elements. First and second surge suppression diodes (D5 and D6) are provided to a node between the resonance reactor (5) and the primary winding of the transformer (6) and between a positive side and a negative side of a capacitor (4). This configuration suppresses a surge voltage applied to the transformer by releasing surge energy of the resonance reactor (5) caused by a recovery of rectifying diodes (D1 to D4) on a secondary side of the transformer (6) via the surge suppression diodes (D5 and D6).

Abstract: The present disclosure relates to an electronic cigarette and an integrated circuit therefor. The integrated circuit incorporates a bi-directional control scheme for a charging process of a rechargeable battery and a discharging process of the rechargeable battery, and includes power devices used in both the processes. Thus, the integrated circuit has less semiconductor devices and lowered manufacturer cost. The integrated circuit has a temperature detection function for providing overheat protection of the system so that it operates in a safe temperature range. The integrated circuit also has a battery current-limiting function for limiting an output current of the rechargeable battery and protecting the same. The integrated circuit further has a short-circuit protection function for limiting an output current of the integrated circuit when the output current is too large and protecting the system.

Abstract: An electronic device capable of performing data communication and method of charging the same are provided. The electronic device comprises a device body, a band that couples the device body to a target object, a fastening part that adjusts a fit of the band to the target object, a fixing strap movably coupled to the band, and an interface terminal installed in the fixing strap, wherein a charging state is determined according to the position of the fixing strap relative to the band.

Abstract: A method of controlling a portable electronic device that has a battery. The method includes, in response to detecting coupling of the portable electronic device to a charger for charging the battery of the portable electronic device, determining if a condition is met to enter a reduced battery use state, and in response to determining that the condition to enter the reduced battery use state is met, identifying a configuration setting of the portable electronic device in the reduced battery use state, and entering the reduced battery use state by applying the configuration setting to adjust a configuration of the portable electronic device.

Abstract: It is inter alia disclosed to an apparatus (100), comprising an interface (110) configured to be connected to a cable, the interface (110) comprising a first terminal (111) configured to be connected to a first line of the cable, a second terminal (112) configured to be connected to a second line of the cable, and a third terminal (113) configured to be connected to a shield line of the cable, and comprising a charger (120) configured to provide a voltage between the first terminal (111) and the second terminal (112), wherein said voltage is based on a predefined voltage and a compensation voltage, the compensation voltage being dependent on a voltage between the third terminal (113) and the second terminal (112).

Abstract: The present invention relates to an electrical energy storage apparatus having a plurality of electrical storage cells connected in series and to an inductive balun for balancing the storage cell voltages, wherein the balun has a balancer transformer having separate single coils for the storage cells and has a respective electric switch for each storage cell. Provision is made in accordance with the invention that the coils of the balancer transformer are connected to a pole of the respective storage cell via a respective at least one inductance and a switch connected to the named inductance, with the switch associated with one respective storage cell being connected via a diode to a pole of a storage cell respective arranged upstream or downstream.

Abstract: An electronic device is provided, including a housing having a back surface. The device includes a rechargeable battery, a capacitor, an inductor coil connected to the capacitor, the inductor coil being disposed around an axis oriented perpendicular to the back surface, a rectifier circuit connected to the inductor coil to output a direct current (DC), a DC-DC converter connected to the rectifier circuit, configured to trickle charge the battery with current received from the rectifier circuit, a test load switchably connected to the DC-DC converter, and a feedback circuit configured to detect a voltage level of the test load and provide an indication of the voltage level.

Abstract: Methods, systems, and apparatus of managing the lifespan of a battery are disclosed herein. A method comprises interpreting age data indicative of a current age of a battery, interpreting usage data indicative of a current usage of the battery, comparing the age data to the usage data, and allocating a propelling power from the battery in a hybrid electric vehicle (HEV) responsive to the comparison.

Abstract: A hand tool case holding device including a holding device housing, a case accommodating area, and a charging coil, which is provided for the purpose of transferring energy into a hand tool case situated in the case accommodating area. It is provided that the hand tool case holding device includes a holding device, which is provided for the purpose of detachably fixing at least the holding device housing independently of the hand tool case.

Abstract: Power feed device (100) supplies power to storage battery (152) mounted on vehicle (150), through power receiving unit (154) of vehicle (150). Power supply unit (104) performs preliminary supply to power receiving unit (154) while sequentially changing a frequency, and performs main supply with power larger than in the preliminary supply. Power supply-side controller (103) acquires frequency characteristics associated with power supply coil (104a), and specifies a resonance frequency based on the acquired frequency characteristics. Power supply-side controller (103) determines whether or not to supply power to power reception coil (154a) based on a frequency difference between resonance frequencies.

Abstract: Arrangements directed to the wireless charging of a vehicle are described. A battery of a vehicle can be charged while the vehicle is traveling on a roadway. A driving environment of the vehicle can be sensed to detect a charging marker. The charging marker can provide information relating to a location of a charge transmitter located below a travel surface of the roadway. The charge transmitter can be located forward of the vehicle in the travel direction of the roadway. The location of the charge transmitter can be determined based on information obtained from the charging marker. A travel path for the vehicle can be determined based at least partially on the location of the charge transmitter so that the charge receiver is positioned in substantial charging alignment with the charge transmitter as the vehicle passes over the charge transmitters.

Abstract: A charging and discharging system, a charging and discharging method, and a photovoltaic power generation system are provided. The charging and discharging system includes: a unidirectional converter, a unidirectional switch, an energy storage device and a controller; where an input terminal of the unidirectional converter is connected to an output terminal of a photovoltaic device of a photovoltaic power generation system to which the charging and discharging system is applied, and an output terminal of the unidirectional converter is connected to an input terminal of the energy storage device; the unidirectional switch is connected between an output terminal of the energy storage device and an input terminal of a bidirectional inverter of the photovoltaic power generation system to which the charging and discharging system is applied; the controller is connected to the unidirectional converter, the unidirectional switch, the energy storage device and the bidirectional inverter.

Abstract: An electronic device includes a battery module, a first switch circuit, a connector, a voltage stabilizer and a controller circuit. The controller circuit is coupled to the connector and the first switch circuit. A configuration channel is implemented between the controller circuit and the connector. When a voltage of the battery module is lower than a threshold voltage and is only connected to a first power source, the first power source provides an activating voltage to the controller circuit through the voltage stabilizer, so as to enable the controller circuit. The connector sends a first detection signal to the controller circuit through the configuration channel. The controller circuit sends a first control signal to turn on the first switch circuit according to the first detection signal, so that the first power source charges the battery module through the first switch circuit.