Abstract: A battery cell (10), having a low-inductance, capacitive parallel path interconnected between the poles of the battery cell (10), wherein the parallel path is embodied as a discrete capacitor (11).

Abstract: A damping circuit for an energy storage device. The damping circuit comprises a current detection device designed to detect an output current of energy supply strings or the energy storage device and to generate an output current signal dependent on the output current. The damping circuit also includes a closed-loop control circuit coupled to the current detection device. The closed-loop control circuit designed to adjust the output current signal to a setpoint current signal and to output a corresponding current control signal. A first winding of a transformer is coupled to an output connection of the energy storage device. A second winding is galvanically isolated from the first winding. A compensation current generation device is coupled to the closed-loop control circuit, and is designed to feed a compensation current into the second winding of the transformer depending on the current control signal.

Abstract: The invention relates to a system for charging at least one energy storing cell (5) in a controllable energy store (2) that is used to control and supply electric energy to an n-phase electric machine (1), wherein n?1. The controllable energy store (2) has n parallel energy supply branches (3-1, 3-2, 3-3), each of which has at least two serially connected energy storing modules (4), each said energy storing module comprising at least one electric energy storing cell (5) with a corresponding controllable coupling unit (6). The energy supply branches (3-1, 3-2, 3-3) can be connected to a reference bus (T-), and each energy supply branch can be connected to a phase (U, V, W) of the electric machine (1). The coupling units (6) bridge the respective corresponding energy storing cells (5) or connect same into the respective energy supply branch (3-1, 3-2; 3-3) dependent on control signals. The aim of the invention is to allow at least one energy storing cell (5) to be charged.

Abstract: The invention relates to a system comprising an n-phase separately excited electrical machine (1), with n?1, a controllable first energy store (2) which has n parallel energy supply branches (2a, 2b, 2c), every energy supply branch (2a, 2b, 2c) comprising a first connection (3a, 3b, 3c) that is connected to a respective phase connection (1a, 1b, 1c) of the electrical machine (1), and a second connection (4a, 4b, 4c) that is connected to a common reference bus (9), said reference bus (9) being connected to the neutral point (10) of the electrical machine (1) via a field winding (11) of the electrical machine (1).

Abstract: The invention relates to a controllable energy store (2) with n parallel energy supply branches (3-1, 3-2, 3-3), wherein n?1, each said branch having a first energy supply sub-branch (3-11; 3-21; 3-31) and a second energy supply sub-branch (3-12; 3-22; 3-32) that is connected in parallel to said first energy supply sub-branch. Each energy supply sub-branch (3-11; 3-12; 3-21; 3-22; 3-31; 3-32) has at least one energy storing module (4), each of which comprises at least one electric energy storing cell (5) with a corresponding controllable coupling unit (6). The coupling units (6) disconnect the energy supply sub-branch (3-11; 3-12; 3-21; 3-22; 3-31; 3-32) or bridge the respective corresponding energy storing cells (5) or connect the respective corresponding energy storing cells (5) into the respective energy supply sub-branch (3-11; 3-12; 3-21; 3-22; 3-31; 3-32) dependent on control signals.

Abstract: The invention relates to an energy storage device (2) comprising at least one first energy supply branch (2a, 2b, 2c) which is designed to supply a separately excited electrical machine (1) with energy via a first connection (3a, 3b, 3c), and a second energy supply branch (2d) which is connected in parallel to the at least one first energy supply branch (2a, 2b, 2c) and which is designed to supply a field winding (11) of the separately excited electrical machine (1) with current via a second connection (3d), the at least one first energy supply branch (2a, 2b, 2c) and the second energy supply branch (2d) being connected to the field winding (11) by means of third connections (4a, 4b, 4c; 4d) via a common reference bus (9).

Abstract: The invention relates to a system for charging at least one energy storing cell (5) in a controllable energy store (2) that is used to control and supply electric energy to an n-phase electric machine (1), wherein n?1. The controllable energy store (2) has n parallel energy supply branches (3-1, 3-2, 3-3), each of which has at least two serially connected energy storing modules (4), each said energy storing module comprising at least one electric energy storing cell (5) with a corresponding controllable coupling unit (6). The energy supply branches (3-1, 3-2, 3-3) can be connected to a reference bus (T-), and each energy supply branch can be connected to a phase (U, V, W) of the electric machine (1). The coupling units (6) bridge the respective corresponding energy storing cells (5) or connect same into the respective energy supply branch (3-1, 3-2, 3-3) dependent on control signals. The aim of the invention is to allow at least one energy storing cell (5) to be charged.

Abstract: The invention relates to a system for charging at least one energy storing cell (5) in a controllable energy store (2) that is used to control and supply electric energy to an n-phase electric machine (1), wherein n ?1. The controllable energy store (2) has n parallel energy supply branches (3-1, 3-2, 3-3), each of which has at least two serially connected energy storing modules (4), each said energy storing module comprising at least one electric energy storing cell (5) with a corresponding controllable coupling unit (6). The energy supply branches (3-1, 3-2, 3-3) can be connected to a reference bus (T-), and each energy supply branch can be connected to a phase (U, V, W) of the electric machine (1). The coupling units (6) bridge the respective corresponding energy storing cells (5) or connect same into the respective energy supply branch (3-1, 3-2; 3-3) dependent on control signals. The aim of the invention is to allow at least one energy storing cell (5) to be charged.

Abstract: The invention relates to a system for charging at least one energy storing cell (5) in a controllable energy store (2) that is used to control and supply electric energy to an n-phase electric machine (1), wherein n>1. The controllable energy store (2) has n parallel energy supply branches (3-1, 3-2, 3-3), each of which has at least two serially connected energy storing modules (4), each said energy storing module comprising at least one electric energy storing cell (5) with a corresponding controllable coupling unit (6). The energy supply branches (3-1, 3-2, 3-3) can be connected to a reference bus (T-), and each energy supply branch can be connected to a phase (U, V, W) of the electric machine (1). The coupling units (6) bridge the respective corresponding energy storing cells (5) or connect same into the respective energy supply branch (3-1, 3-2; 3-3) dependent on control signals. The aim of the invention is to allow at least one energy storing cell (5) to be charged.

Abstract: The invention relates to a system for coupling at least one DC source (9) to a controllable energy store (2), which is used for controlling and supplying electrical energy to an n-phase electric machine (1), where n?1. In this case, the controllable energy store (2) has n parallel energy supply branches (3-1, 3-2, 3-3), which are connectable firstly to a reference rail (T?) and secondly to in each case one phase (U, V, W) of the electric machine (1). An intermediate circuit (10) is connectable on the output side via a controllable coupling circuit (12) to the energy supply branches (3-1, 3-2, 3-3) of the controllable energy store (2) and on the input side to the at least one DC source (9). An associated operating method provides for a current flow from the at least one DC source (9) into the energy supply branches (3-1, 3-2, 3-3) of the controllable energy store (2) or the phases (U, V, W) of the electric machine (1) to be controlled with the aid of the controllable coupling circuit (12).

Abstract: The invention relates to a controllable energy store (2) with n parallel energy supply branches (3-1, 3-2, 3-3), where n?1, each of which comprises at least two serially connected energy storage modules (4). Each energy storage module comprises at least one electric energy storage cell (5) having an associated controllable coupling unit (6). The coupling units (6) bridge the associated power storage cells (5) in accordance with control signals or connect the associated energy storage cells to the respective energy storage branch (3-1; 3-2; 3-3). At least one energy storage module (4-11; 4-21; 4-31) is designed such that it has reduced switching losses, reduced in particular by at least 10% compared to the other energy storage modules (4) in the respective power supply branch (3-1; 3-2; 3-3).

Abstract: The invention relates to a battery module (1), comprising at least two battery cells (2), each having a first (3) and a second connection (4), connector connecting elements (7) for connecting the battery cells (2), a first (9) and a second terminal connector (11) for connecting the battery module (1) to external circuitry, a first terminal connector connecting element (8) for connecting the first terminal connector (9) to a first terminal (5) of the battery module (1), and a second terminal connector connecting element (10) for connecting the second terminal connector (11) to a second terminal (6) of the battery module (1).

Abstract: The invention relates to a battery cell (101; 101; 101?; 101??), comprising a first electrode foil (102) and a second electrode foil (103), which are rolled up together with an interposed separator to form a roll 104; 104??), a first (105; 105?; 105??) and a second terminal connector (106; 106?; 106??) for connecting the battery cell (101; 101; 101?; 101?) to external circuitry, a first connecting element (107; 107; 107?), which electrically connects the first terminal connector (105; 105?; 105??) to the first electrode foil (102), and a second connecting element (108; 108; 108??), which electrically connects the second terminal connector (106; 106?; 106?) to the second electrode foil (103). According to the invention, the two connecting elements (105, 107; 105?, 107?; 105??, 107??) make contact with the respective electrode foil (102; 103) on a first end face (110; 110?) of the roll.

Abstract: An energy supply network has an n-phase electrical machine where n?1 and a controllable first energy reservoir which serves to control and supply electrical energy to the electrical machine. The first energy reservoir has n parallel energy supply branches that each have at least two energy reservoir modules, connected in series, that each encompass at least one electrical energy reservoir cell having an associated controllable coupling unit and are connected on the one hand to a reference bus, and on the other hand to a respective phase of the electrical machine. As a function of control signals, the coupling units either bypass the respectively associated energy reservoir cells or switch the respectively associated energy reservoir cells into the energy supply branch.

Abstract: A system for charging at least one energy reservoir cell in a controllable energy reservoir serving to control/supply electrical energy to an n-phase electrical machine (n?2). The controllable energy reservoir has n parallel energy supply branches each having at least two series connected energy reservoir modules, each encompassing at least one electrical energy reservoir cell having an associated controllable coupling unit, are connected to a reference bus, and are connected to a respective phase of the machine. As a function of control signals, the coupling units interrupt the respective energy supply branch or bypass the associated reservoir cells or switch the associated reservoir cells into the respective energy supply branch. To charge at least one cell, at least two phases of the machine are connectable via at least one respective free-wheeling diode to a negative pole of a charging device. The reference bus is connectable to the negative pole of the device.

Abstract: A system for charging at least one energy reservoir cell in a controllable energy reservoir for controlling/supplying electrical energy to an n-phase electrical machine. The controllable energy reservoir has n parallel energy supply branches each having at least two series connected energy reservoir modules, each encompassing at least one electrical reservoir cell having an associated controllable coupling unit. The energy supply branches are connectable to a reference bus and a respective phase of the machine. As a function of control signals, the coupling units interrupt the respective energy supply branch or bypass the cells or switch the associated cells into the respective energy supply branch. To enable charging of at least one cell, at least two phases of the machine are connectable via at least one respective freewheeling diode to a positive pole of a charging device, and the reference bus is connectable to a negative pole of the device.

Abstract: A power supply system has an n-phase electric machine, where n?1, and a controllable energy store serving to control and to supply electrical energy to the electric machine. The controllable energy store has n parallel power supply arms which each have at least two series-connected energy storage modules which each include at least one electrical energy storage cell with an associated controllable coupling unit, are connected on one side to a reference bus and are connected on the other side to one respective phase of the electric machine. In dependence on control signals, the coupling units either bridge the respectively associated energy storage cells or connect the respectively associated energy storage cells into the power supply arm.

Abstract: In a method for transferring energy between at least two energy storage cells in a controllable energy store that serves to control and to supply electrical energy to an n-phase electric machine, which energy store has n power supply arms which each have at least two series-connected energy storage modules which each include at least one electrical energy storage cell with an associated controllable coupling unit, and are connected to one respective phase of the electric machine, in a charging phase, all coupling units of those energy storage modules which are to be used as an energy source are controlled in such a way that the respectively associated energy storage cells are connected into the respective power supply arm.

Abstract: A circuit electrically connects a MEMS microphone with a single line transmitting both a DC power signal and an AC information signal. The MEMS microphone has a power interface for receiving the power signal, and an information interface for delivering the information signal. In such embodiments, the circuit includes a pair of lines that separate the power and information signals. To that end, the circuit has an information line configured to connect with the information interface of the MEMS microphone, and a power line configured to connect with the power interface of the MEMS microphone.

Abstract: A method and a device for triggering an injector are described, allowing expansion of the metering range of the injector. The injector is triggered by a trigger voltage that is adjusted according to a predefined voltage for opening the injector, the trigger voltage being first increased to open the injector, starting from the predefined voltage, and then reduced after a predefined time. The predefined time is selected in such a way that the energy stored in an energy accumulator mechanism of the injector has reached a steady-state energy level after the predefined time.