Abstract: Predetermined information indicating an application scene in charging electronic equipment is determined. A target charging mode adapted to the application scene is selected from alternative charging modes based on the predetermined information. Each of the alternative charging modes corresponds to a distinct charging parameter. The electronic equipment is charged based on the target charging mode.

Abstract: A single-interface charging-discharging switchable circuit comprising a power management unit U1, field effect transistors Q1˜Q2, capacitors C1˜C5, resistors R1˜R8, a diode D1 and an inductor L1. The product fills the gap in the market where there is no automatic charging-discharging switching circuit with the same interface, which enables the same interface (VCC/GND) to realize discharging and charging functions. The circuit of the disclosure is simple and has broad application prospects. The product of the disclosure uses a 5V-30V power supply to charge, and mobile phone adapters, portable power supply and other 5V power supply can be used as chargers. It is not limited by the 5V voltage of the traditional power supply, and the range of the input voltage of charging is wide.

Abstract: A printing apparatus includes: a battery accommodating portion; a conveyor; a printing device; a power-source connector; an electric charger that charges the battery power source from an external power source when the power-source connector is connected to the external power source; and a degradation-degree detector that detects a degradation degree of the battery power source. A controller executes: a charge processing for controlling the electric charger using at least one charge parameter to charge the battery power source; storing data on the degradation degree of the battery power source based on a result of detection of the degradation-degree detector; a determining processing for determining whether a particular determination criterion relating to the degradation degree is satisfied in the stored data; and correcting the at least one charge parameter in accordance with a result of determination in the determining processing.

Abstract: A battery including: a power supply bus; an assembly of electric cells and of first switches coupling the cells; second switches forming an H bridge and coupling said assembly to nodes; a first circuit for supplying first control signals to the first and second switches; a second circuit for delivering a first power supply voltage to the first circuit based on the voltage across one of the cells; a third circuit for supplying second control signals to at least two of the second switches and connected to the power supply bus; and first diodes coupling the first circuit to the two second switches and second diodes coupling the third circuit to the two second switches.

Abstract: A car charger includes a main body, a charging slot, and a charging module. The main body has an insertion portion and a top portion. The charging slot is located at the top portion. The charging slot has a concave surrounding wall, and the surrounding wall has a receiving space. The charging module includes an input terminal, a first charging terminal, and a conversion circuit. The input terminal is located at the insertion portion. The first charging terminal is located at the surrounding wall. The conversion circuit is electrically connected to the input terminal and the first charging terminal. The conversion circuit is configured to convert power from the input terminal and output the power to the first charging terminal.

Abstract: Electric vehicles with easily configurable and detachable battery modules are disclosed. An electric vehicle may include a battery module that includes a plurality of modular battery packs, each of which can be detached without affecting the normal functions of the electric vehicle. The number of modular battery packs installed on the electric vehicle can be configured by the manufacturer, retailer, and/or customer based on the customer's needs. Systems and methods of servicing electric vehicles with modular battery packs are also disclosed. Battery swapping and/or renting stations allows electric vehicle users to swapping batteries whose charges run low with fully charged batteries and/or to rent additional batteries to temporary use. A centralized or distributed data system may be used to track each modular battery pack's conditions such use history, capacity degrade, charge cycles, etc. The costs battery swapping and/or renting can be based conditions of the battery packs.

Abstract: A step-down conversion circuit assembly and an electronic device are provided. The step-down conversion circuit assembly includes a box body, a step-down conversion circuit, a heat dissipation element, and a fan. The box body has multiple side walls, where the multiple side walls define an enclosed accommodating space, and the box body defines an air outlet on one of the multiple side walls. The step-down conversion circuit is disposed in the accommodating space of the box body. The heat dissipation element is disposed in the accommodating space of the box body and attached to the step-down conversion circuit for conducting heat. The fan is disposed between the step-down conversion circuit and the air outlet and configured to enable the heat in the accommodating space to exit from the air outlet.

Abstract: A low voltage charging control and protection circuit for an electronic cigarette is provided. The circuit includes an extended charging circuit configured to charge a battery of the electronic cigarette at a first voltage. The circuit also includes a charging integrated circuit configured to charge the battery of the electronic cigarette at a second voltage. The first voltage is lower than the second voltage. The circuit further includes a microcontroller configured to control the extended charging circuit and the charging integrated circuit to alternately charge the battery of the electronic cigarette based on a high or low level of a voltage of the battery.

Abstract: A method is described for charging an accumulator having terminals at which a terminal voltage is applied. The method includes the following steps: (a) charging the accumulator using a predefined current or a predefined electrical power until the terminal voltage has reached a predefined first value; (b) determining a time-dependent drop in the terminal voltage of the accumulator at a reduced charge current; (c) determining a second value on the basis of the voltage loss, the second value being greater than the first value; and (d) charging the accumulator using a predefined current or a predefined electrical power until the terminal voltage of the accumulator has reached the second value.

Abstract: A distributed battery balance management method includes: performing a battery system balancing procedure by a battery system balance management unit and performing battery module balancing procedure by module balance management circuit (MBMC) of corresponding battery module (BM). The battery system balancing procedure includes: obtaining lowest module voltages of corresponding BMs; obtaining a lowest system voltage and an average system voltage of the battery system; determining whether the lowest module voltage of the corresponding BM is greater than the average system voltage; when yes, setting a balance time duty ratio of the corresponding MBMC as a first duty ratio; when no, setting the balance time duty ratio of the corresponding MBMC as a second duty ratio; and setting module balance enable signal of corresponding MBMC to be enable, thus allowing the corresponding BM to perform voltage balance control on the batteries in the corresponding BM.

Abstract: The present disclosure provides a charger capable of improving the portability thereof. The charger is a charger including a second charging terminal configured to be magnetically connected to a first charging terminal provided on a mobile body to supply power to the first charging terminal, the charger further including: a stand; a suspension member configured to suspend the second charging terminal from the stand; and a displacement inducing mechanism configured to induce, in order to reduce a magnetic connecting force between the first and the second charging terminals, relative displacement between the first and the second charging terminals in a direction different from an axial direction of the second charging terminal.

Abstract: Battery management circuits include a first charging channel, a Cuk circuit, and a communication control circuit. A battery is charged through the first charging channel based on charging voltage and/or charging current provided by a power supply device. The battery includes a first cell and a second cell coupled in series. The communication control circuit is configured to communicate with the power supply device, to make magnitude of the charging voltage and/or charging current provided by the power supply device match a present charging stage of the battery, and the communication control circuit is further configured to send a drive signal to the Cuk circuit to drive the Cuk circuit to work, to make energy of the first cell and the second cell be transferred through the Cuk circuit to balance voltage of the first cell and voltage of the second cell.

Abstract: Methods, systems, and devices for power electronics-based (PE-based) battery management. A system may include a set of battery strings, where each battery string may include a set of battery modules, and where each battery module may include a set of battery cells. The system may also include a set of power converters, where each power converter may be coupled with at least one battery string. A power electronics-based (PE-based) BMS may provide one or more battery management functions for at least one corresponding battery string while also monitoring or controlling a corresponding power converter.

Abstract: A charging control device includes: a battery state detector configured to detect a cell voltage of at least one cell of a battery and a charging current between the battery and a charging device; and a controller configured to perform a cell over voltage protection (COVP) function on the battery based on a cell over voltage protection voltage, and to vary the cell over voltage protection voltage in response to the charging current.

Abstract: An ESS charging and discharging operation method may include the steps of: checking whether SOC of the ESS is within an operable range, and performing an SOC management operation if the SOC of the ESS is not within the operable range; performing, if the SOC of the ESS is within the operable range, a catenary wire voltage control operation based on range of catenary wire voltage and range of variation rate of the catenary wire voltage; performing the SOC management operation after the ESS is charged or discharged depending on the catenary wire voltage control operation over unit time, if output current of the ESS does not exceed current reference value; and stopping the catenary wire voltage control operation and switching the operation to a standby state.

Abstract: An electronic apparatus according to an aspect of the present disclosure includes an external electric power input terminal for inputting electric power from an external device, a detector for detecting that the external device is connected to the external electric power input terminal, a battery that is chargeable, a measuring unit for measuring a voltage and a current of the battery, a load circuit for consuming the electric power, a charging circuit for charging the battery, and a power controller for controlling on/off of the charging circuit, wherein the power controller set the charging circuit off during a predetermined period, when a discharge operation of the battery is detected based on a measuring result of the measuring unit in a state in which the charging circuit is set on, when the detector detects that the external device is connected to the external electric power input terminal.

Abstract: A battery charger circuit having a regulator controller configured to control the switching transistors of a switching voltage regulator. A power path switch is disposed intermediate an output of the switching voltage regulator and a terminal of a battery to be charged, with the power path switch including at least two transistor segments having common respective drain electrodes, common respective source electrodes and separate respective gate electrodes. A power path switch controller operates to sequentially turn ON the at least two transistor segments of the power path switch, preferably in the order of a decreasing ON resistance.

Abstract: Various embodiments of the disclosure relate to an apparatus and method for preventing overcharging of a battery. In this case, the electronic device includes a battery, at least one processor, and a memory electrically coupled to the at least one processor. The memory may store instructions, when executed, allowing the at least one processor to set a charge safety time corresponding to an external device upon connection with the external power device, charge the battery, based at least in part on power of the external power device, and update the charge safety time, based on a change of at least one of charging current and discharging current of the battery. Other embodiments may also be possible.

Abstract: A method of charging a battery in an electronic device includes: supplying electrical power to the battery at a charge rate equal; determining if a battery temperature exceeds an adaptive temperature threshold; responsive to the battery temperature exceeding the adaptive temperature threshold: determining a rate of change of the battery temperature; obtaining a charge rate adjustment based on the rate of change; and modifying the charge rate by the charge rate adjustment.

Abstract: A battery pack charger system may include a first charger configured to charge a first battery pack, a second charger configured to charge a second battery pack, a support arranged between the first charger and the second charger, and a power cord configured to deliver power. The first charger may be attached on a first side of the support and the second charger may be attached on a second side of the support that is opposite the first side of the support. The first charger and the second charger may be arranged directly opposite of each other. The power cord may be connected to one of the first charger or the second charger.