368results about "Battery load switching" patented technology

Systems, methods, and articles for a portable power case are disclosed. The portable power case is comprised of at least one battery and at least one PCB. The portable power case has at least two access ports, at least two leads, or at least one access port and at least one lead and at least one USB port. The portable power case is operable to supply power to an amplifier, a radio, a wearable battery, a mobile phone, and a tablet. The portable power case is operable to be charged using solar panels, vehicle batteries, AC adapters, non-rechargeable batteries, and generators. The portable power case provides for modularity that allows the user to disassemble and selectively remove the batteries installed within the portable power case housing.

A multi-functional module system for a mobile device includes a docketing station and housing attachable to the mobile device. The housing includes an integrated wireless charging coil, and a plug head integrally formed with or attached to the housing. The plug head establishes a direct electrical / data connection between the housing and a port of the mobile device. The charging coil aligns with and charges a wireless-enabled accessory placed adjacent to the housing. The docking station includes an electrical connection interface to transmit power and / or data between the housing, the mobile device and a removable electronic module (REM) connected to the docking station. At least one port of the housing transfers power / data between an external device plugged into the port and the housing and / or the mobile device and / or the connected REM. The docking station provides a docking interface between the REM and housing via a magnetic coupling.

A combination includes a battery pack and an adapter. The battery pack includes a battery pack interface at least capable of being detachably connected to a power tool. A first adapter includes a plug, an alternating current input interface, an alternating current-direct current conversion circuit, and a direct current output interface. A second adapter is capable of being electrically connected to the first adapter and the battery pack. The second adapter includes an adapter interface, a direct current interface, a voltage conversion circuit, and a two-way control module. The direct current interface is configured to be detachably electrically connected to the direct current output interface. The voltage conversion circuit is connected in series between the direct current interface and the adapter interface. The two-way control module is connected between the direct current interface and the adapter interface and connected to the voltage conversion circuit.

Systems, methods, and articles for a portable power case are disclosed. The portable power case is comprised of at least one battery and at least one PCB. The portable power case has at least two access ports, at least two leads, or at least one access port and at least one lead and at least one USB port. The portable power case is operable to supply power to an amplifier, a radio, a wearable battery, a mobile phone, and a tablet. The portable power case is operable to be charged using solar panels, vehicle batteries, AC adapters, non-rechargeable batteries, and generators. The portable power case provides for modularity that allows the user to disassemble and selectively remove the batteries installed within the portable power case housing.

Electrochemical cell and battery management systems are generally provided. The systems can comprise an electrochemical cell and a controller. In some cases, the controller can be used to control various aspects of the charge and / or discharge of the electrochemical cell. In some cases, the system can comprise one or more strings of cells.

Systems and apparatus for implementing a mobile energy system. In one aspect, a mobile energy system includes a cabinet having an interior space defined by an outer surface of the cabinet, where the interior space can include a battery storage area configured to receive a battery energy storage system having at least 2 kWh of storage capacity. The mobile energy system can also include an item storage area configured to receive and store one or more other items, a connector configured to connect a battery energy storage system located in the battery storage area to an external power source, and a charging cable configured to connect the battery energy storage system to a charging port of an electric vehicle.

Disclosed is an electronic device. The electronic device may include a housing forming a first space configured to seat an external electronic device and a second space, a battery storing power, a support part disposed within the first space and configured to support the external electronic device when the external electronic device is seated in the electronic device, a first antenna and a second antenna disposed in the support part, a third antenna disposed in the second space and configured to receive a first magnetic field from the outside of the housing and to supply power to the battery. The battery may be disposed in the second space. The battery may radiate a second magnetic field to at least some area of the first space by supplying power to at least one of the first antenna and the second antenna.

An emergency LED lighting system maintains power to an LED lighting source based on measured voltages and currents provided to the LED lighting source; rolls back or decreases power provided to an LED lighting source over time in order to increase the amount of time the battery can power the LED lighting source; executes a soft start procedure, such that the power provided to the LED lighting source is gradually ramped up during activation of the LED lighting sources; identifies a type of battery coupled to the emergency LED lighting system; cycles the emergency LED lighting system between charging mode and standby mode to reduce power consumption over a window of time; detects AC power or an absence of AC power; and / or uses a status LED to communicate information about the emergency LED lighting system with a remote device.

A power supply device includes a first battery and a second battery, and a first switching unit, configured to select the first battery to supply power to a load; a second switching unit, configured to select the second battery to supply power to the load; a processing unit, configured to detect power of the first battery and the second battery; when the power of the second battery is greater than a first preset value, the processing unit disconnects the first switching unit and turns on the second switching unit to enable the second battery to supply power to the load; the processing unit controls the second battery to charge the first battery when the power of the first battery is less than a second preset value; and when the power of the first battery is greater than a third preset value, the second battery stops charging the first battery.

An overheating detection method of a cleaning robot includes, when contact between a first charging terminal of the cleaning robot and a second charging terminal of a station is detected through a first voltage detection circuit, transmitting a charge command to the station, obtaining a heating value between the first charging terminal and the second charging terminal when a voltage is supplied from the station to the cleaning robot according to the charge command, and performing a re-docking operation after the cleaning robot moves away from the station by a predetermined distance when the obtained heating value exceeds a threshold heating value that is a criterion for overheating.

A method to control storage into and depletion from multiple energy storage devices. The method enables an operative connection between the energy storage devices and respective power converters. The energy storage devices are connectible across respective first terminals of the power converters. At the second terminals of the power converter, a common reference is set which may be a current reference or a voltage reference. An energy storage fraction is determined respectively for the energy storage devices. A voltage conversion ratio is maintained individually based on the energy storage fraction. The energy storage devices are stored individually with multiple variable rates of energy storage through the first terminals. The energy storage is complete for the energy storage devices substantially at a common end time responsive to the common reference.

Techniques and apparatus for swapping a primary power source (e.g., a main battery) while using a secondary power source (e.g., a backup battery or a supercapacitor) to power a portable device. One example integrated circuit (IC) for power management generally includes a first power supply node; a second power supply node; a first port for coupling to a primary power source; a first switch coupled between the first power supply node and the first port; a second port for coupling to a secondary power source; a second switch coupled between the first power supply node and the second port; and a third switch coupled between the first and second power supply nodes. For certain aspects, the IC also includes a third power supply node, a voltage regulator coupled between the first and third power supply nodes, and a fourth switch coupled between the second and third power supply nodes.

A charging apparatus for a handheld electronic device includes a housing configured to removably attach to the handheld electronic device. The housing includes at least one electronic logic board, and an accessory station configured to store and charge at least one accessory item of the handheld electronic device. The electronic logic board includes a coil configured to wirelessly provide or accept power to and from the handheld electronic device. A software installed on the electronic logic board is configured to control a power transfer between at least two of the following: the accessory item, the accessory station, the housing, and the handheld electronic device. The housing includes a magnetic material configured to removably attach to a corresponding magnetic material of the handheld electronic device.

A multiport converter designed to supply direct current loads comprising one or more energy sources, a battery, a multiport DC-DC converter connected to the energy sources and to a load, an IoT device for communication and control of the system. The multiport DC-DC converter further comprises an energy management system for selectively controlling the charging or discharging of the battery and the amount of energy directed to the load based on predictions of energy generation from the energy sources, based on a load demand and based on optimized scenarios. The multiport converter is used in green hydrogen generation plants powered by renewable energy sources, such as wind and photovoltaic energy; and a system capable of self-managing and ensuring better use of energy from the sources and better efficiency of green hydrogen generation.

A processor of a battery apparatus estimates an internal resistance of a battery at a reference temperature based on a measured voltage of the battery, a measured current of the battery, an open circuit voltage of the battery, and a measured temperature of the battery, and estimates a resistance state of the battery based on the estimated internal resistance and a beginning of life (BOL) resistance at the reference temperature when the battery is in a BOL state.

A battery pack, detachably connected to an external device for charging or discharging, includes a battery set, a control module, a first signal terminal, and a second signal terminal. The first signal terminal and the second signal terminal are connected to the control module and the external device, the control module detects at least one operating parameter of the battery set, and generates a state parameter related to the operating parameter according to the operating parameter, the control module send the state parameter to the outside by using the first signal terminal, and the control module sends that state parameter to the outside by using the second signal terminal. The battery pack transmits data to the outside by using two communication channels, to doubly ensure communication, thereby preventing any abnormal communication channel from causing damage to the use of the battery pack, and improving the use security.

A hybrid light tower includes an engine, a mast, a generator configured to be driven by the engine, a battery coupled to the generator, a light assembly having a light, and a controller in communication with the battery, the engine, and the light assembly. The controller is configured to operate in a hybrid mode where the controller is configured to monitor a cell voltage of the battery, determine if the cell voltage of the battery is below a charging threshold, upon determining that the cell voltage of the battery is below the charging threshold, start the engine and charge the battery in a constant current mode, while charging in the constant current mode, determine if the cell voltage is above a constant voltage threshold, and upon determining that the cell voltage is above a constant voltage threshold, charge the battery in a constant voltage mode.

A charger integrated circuit includes a bidirectional switching converter including first to fourth switching elements connected in series, an inductor connected to a third switching element, and a capacitor connected to a second switching element and the third switching element, and a controller configured to generate, a first PWM signal and a second PWM signal based on sensing signals from the bidirectional switching converter, and a first switching signal controlling first and fourth switching elements based on the first PWM signal in response to an average of an inductor current being positive, a second switching signal controlling second and third switching elements based on the second PWM signal, and generate the first switching signal based on the second PWM signal, and the second switching signal based on the first PWM signal in response to the average value of the inductor current being negative.

The disclosure provides a charging and discharging method for a cleaning device, and a cleaning system. The charging and discharging method for a cleaning device includes: operating in a self-cleaning mode to clean a self-cleaning object of the cleaning device; and supplying at least part of a current from a charging power supply to a workload in the self-cleaning mode. In the solution according to the disclosure, the at least part of the current from the charging power supply is supplied to the workload in the self-cleaning mode, thus reducing the power consumption of a battery in the self-cleaning mode and prolonging the overall battery life of the battery.

A method includes charging a battery of a vehicle to a charge threshold voltage. The method also includes discharging the battery from the charge threshold voltage to a post-task voltage by performing a travel task using the vehicle. The method additionally includes determining that a battery calibration condition has been met. The method further includes, based on determining that the battery calibration condition has been met, discharging the battery from the post-task voltage to a discharge threshold voltage by performing a battery discharge task. The method yet further includes determining a capacity of the battery based on a first electrical output of the battery during the travel task and a second electrical output of the battery during the battery discharge task.

A charge control device is configured to control charging of a lithium ion battery, estimate an inflow current flowing into the lithium ion battery when a current flowing through a load stops, derive a protective charging current that is a maximum value of charging current not to cause the lithium ion battery to form lithium deposition, calculate a charging upper limit current based on the protective charging current and the inflow current, the charging upper limit current being an upper limit of current to charge the lithium ion battery, and control charging of the lithium ion battery based on a limit electric power calculated from the charging upper limit current and a voltage of the lithium ion battery.

A mobile solar power unit control system providing power to an associated equipment item comprising: at least one mobile solar power unit comprising an assembly of inter-connected solar collector panels; an energy storage module connected to receive power from the assembly of inter-connected solar panels; and a control system for controlling operation of both the energy storage module and associated equipment item. The control system comprises a local controller onboard or proximate the at least one mobile solar power unit and a remote controller, communicable with the local controller, located remotely from said at least one mobile solar power unit. The mobile solar power unit conveniently provides power for an associated equipment item and any selected auxiliary loads located in an off-grid location.

A control device includes a processor. The processor controls an electric power supply to an operating part, and charging and discharging of a secondary battery; estimates electric power being supplied to the operating part and the secondary battery; acquires a charge state for a case of charging the secondary battery; and when a determination is made that the electric power estimated by the processor and being supplied to the operating part and the secondary battery is less than electric power required for a predetermined action to be executed by the operating part and, also, the charge state of the secondary battery is a predetermined charge state, controls so as to limit the predetermined action.

A power inverter is provided. The power inverter includes: first, second and third legs configured to output alternating voltages having different phases. Each the first leg, the second leg, and the third leg includes: a first power metal oxide semiconductor field effect transistor (MOSFET) on a SiC substrate, and connected between a power terminal of direct current voltage and an output terminal configured to output a voltage of a corresponding phase among the first phase, the second phase and the third phase; a second power MOSFET on the SiC substrate, and connected between the output terminal and a ground terminal; and a redundancy circuit including a redundancy power transistor configured to replace the first power MOSFET based on the first power MOSFET failing and replace the second power MOSFET based on the second power MOSFET failing.

This backup power supply control system comprises: a first semiconductor switch for switching a main power supply path between a conductive state and a cutoff state; and a sub-power supply switch for switching a sub-power supply path between a conductive state and a cutoff state. In a failed state, a second drive unit controls the sub-power supply switch to be ON. In a non-failed state, a first drive unit controls a second semiconductor switch connected between the gate and the source of the first semiconductor switch so as to control the first semiconductor switch to be ON. In the failed state, the first drive unit ensures at least the gate plateau voltage of the first semiconductor switch as a driving voltage for the second semiconductor switch, and upon detection of the failed state by a failure detection unit detects, the first drive unit controls the second semiconductor switch to be ON so as to control the first semiconductor switch to be OFF.

A power and data coupling system for a handheld electronic device includes accessory housing configured to operatively couple with the electronic device. An accessory station is integrated with the accessory housing to store and charge at least one accessory item of the electronic device. The housing includes at least one electronic logic board configured to provide or accept power or data to and from the handheld electronic device when the accessory housing is within an effective range of a power and data transfer component of the electronic device. A software installed on the electronic logic board is configured to control a power transfer between at least two of the following: the accessory housing, the accessory station, the at least one accessory item, and the handheld electronic device.

A DC power system includes a first interface to a DC source and a second interface coupled to the first interface and to a load. A battery control system (BCS) has an input / output interface coupled to the first interface and to the second interface, and a series arrangement of switched controllable units of one or more battery cells, each switchably bypassable according to a control signal. The BCS selectively sources and sinks power to variably control a voltage at the input / output interface utilizing the plurality of switched controllable units under control of a BCS processor that produces the control signal. The BCS sources power from the switched controllable units to supply power to the load in addition to, or in lieu of, the DC source, and regulates performance of an external circuit by dynamic variation of the voltage at the input / output interface according to the control signal.

Systems and methods for transistor protection for battery packs are disclosed. In one aspect, transistors are turned on and off at a duty cycle selected to keep the transistor in a safe operating area (SOA). Such SOAs are generally defined by voltage, current, and time, so by keeping the time limited, high currents or voltages may be better tolerated. In specifically contemplated aspects, a control circuit alternately activates and deactivates driver transistors to toggle a discharge pin, thereby setting the duty cycle.

The present disclosure provides various embodiments of a fastener-driving tool that includes a battery-charged supercapacitor as a power source. The fastener-driving tool includes first and second spaced-apart, conductive rails and a partially conductive piston slidably mounted on the rails. The rails and the piston are electrically connected to one another. The supercapacitor is electrically connected to the first rail. When the supercapacitor discharges electrical current, the electrical current flows from the supercapacitor, into the first rail, through the piston into the second rail, and from the second rail. The electrical current induces magnetic fields in the rails and the piston, and the combination of the electrical current and the magnetic fields induce a Lorentz force that acts on the piston to move the piston toward a nosepiece to drive a fastener.

Defibrillators, defibrillator architectures, defibrillator interface units and methods of operating defibrillators are described. In one aspect, a modular defibrillator architecture is described. In some embodiments, a base defibrillator unit includes a rechargeable battery and a supplemental battery pack is provided to facilitate recharging the base defibrillator unit's rechargeable battery.