Methods and systems are provided for managing multi-battery systems, such as those utilized in an electric vehicle. Multi-battery systems comprise batteries providing power in parallel, thereby making each battery available to the vehicle and avoiding the weight of transporting a backup battery. The methods and systems provided allow for a fault in one battery, in a parallel configuration with at least one other battery, to be detected and managed.

Disclosed herein are regulated power supplies. The power source delivers power to a system load and includes battery units. The power source also includes power flow devices coupled to the battery units that are configured to provide power from the battery units to the system load. Each power flow device corresponds to a respective one of the battery units, and includes a one direction current flow device connected in series with a current regulator between the respective battery unit and the system load.

A wearable medical screening device using electrical impedance tomogram and associated operation method. The wearable medical screening device includes electrodes, signal generator, and signal processor. The electrodes are arranged to be arranged on a body part of a wearer. The signal generator is arranged to provide a signal to at least one of the electrodes for transmission of a respective excitation signal to the body part of the wearer. The signal processor is arranged to process respective response signal received by at least one of the remaining electrodes as a result of the respective excitation signal, for determination of an electrical impedance tomogram for real-time preliminary medical screening of a disease associated with body part on which the wearable medical screening device is worn.

A powder inhaler assembly includes a powder inhaler including a metering device having a dosing recess and movable, with respect to a container and to an inhalation channel, between an idle state, in which the dosing recess is in communication with an opening of the container so as to be filled with a dose of the powdered medicament, and a triggered state, in which the dosing recess is in communication with the inhalation channel for enabling inhalation of a dose of the powdered medicament contained in the dosing recess through a mouthpiece. An electronic module is attachable to the powder inhaler and includes a non-contact sensor positioned and configured to sense position(s) of at least part of the metering device to detect at least when the metering device is in the triggered state.

A wireless power feeding system comprising a power feeder and a power receiver including a power reception coil, a power reception circuit unit for recovering energy generated in the power reception coil, and an internal secondary battery for storing energy. Electric energy is supplied from the power feeder to the power receiver by means of electromagnetic induction using a resonance phenomenon. The power receiver has an outer shape identical to that of a conventional battery, and has a power receiver housing accommodating the power reception coil, the power reception circuit unit, and the internal secondary battery. Further, the power receiver has two electrodes disposed in positions identical to those of the conventional battery. Further, the power feeder includes a power feeding base on which the power receiver can be mounted.

An electric processing tool includes an energy supply device and an open-loop or closed-loop control unit. The energy supply device includes at least two energy sources which are interconnected, each in a series circuit with an electronic component for applying the logical operator “OR” to the individual current of the electronic component in question, to form a common star point, such that a resulting total current for supplying the electric processing tool results. At least a subset of the energy sources, in particular each energy source, is assigned a current-measuring unit for measuring the individual current of the energy source in question. The open-loop or closed-loop control unit is configured to adapt the total current to the measured individual currents.

The electronics comprises a load circuit, a power supply circuit having a rechargeable electrical energy storer, and a protection circuit. An input of the power supply circuit is adapted to be electrically connected with an external energy supply. Both the power supply circuit and the protection circuit have at least two operating modes. Additionally, the protection circuit is adapted in the first operating mode to monitor the cell voltage applied on the circuit input to determine whether its voltage level has exceeded a predetermined maximum value and, in given cases, automatically to deactivate the operating mode.

A battery pack power transfer adaptor and a battery pack system that includes a battery pack adaptor. The adaptor enables a battery pack to provide high level power transfers to a variety of devices and to receive high level power transfers from a variety of power sources. The adaptor includes a battery pack interface to enable the adaptor to mechanically and electrically connect to the battery pack. The adaptor is able to transfer power at a variety of levels dependent upon the device to which it is attached.

The invention relates to a method of controlling the on-time of a plurality of energy modules of an energy storage. The energy storage comprising a plurality of series connected energy modules forming an energy module string. A string controller is controlling which of the individual energy modules that is part of a current path through the energy module string, by control of the status of a plurality of switches. The string controller is controlling the frequency of the energy module string voltage according to an electric system reference related to a system to which the energy storage is connected. And wherein the string controller is controlling the switches of the individual energy modules so that each of the individual energy modules that are required to be included in the current path to establish the energy modules string voltage are included in the current path for at least a minimum on-time.

Described herein is a battery system that allows a battery pack to operate in different modes at different times. Each of the different modes may provide its own set of functionality that affects how the battery pack operates and/or reacts to external input signals. A mode may change how the battery pack discharges power by, for example, altering whether terminals are enabled or disabled. A mode may change how the battery pack's hardware operates by, for example, disabling or enabling portions of the battery pack's hardware. A mode may change what battery-related services are provided by the battery pack and available to an end user by, for example, enabling or disabling the sending of battery status information from the battery pack.