Abstract: In some examples, this disclosure describes a method of operating a battery management circuit of a battery management system associated with an electric device. The method may comprise supplying power to the battery management circuit from battery cells being monitored by the battery management circuit in a first instance of time; and suppling power to the battery management circuit from a DC/DC power converter in a second instance of time.

Abstract: In some examples, this disclosure describes a method of operating a plurality of battery management circuits of a battery management system associated with an electric device. The method may comprise adjusting a first trim value associated with a first battery management circuit during operation of the electric device, and adjusting a second trim value associated with a second battery management circuit during operation of the electric device. The method may also comprise sinking a first amount of current in the first battery management circuit based on the first trim value; and sinking a second amount of current in the second battery management circuit based on the second trim value, wherein sinking the first amount of current and sinking the second amount of current causes the first battery management circuit and the second battery management circuit to consume substantially similar amounts of current.

Abstract: Circuitry to measure individual battery cells of a battery pack and make corrections to account for environmental differences between battery cells and their associated measuring circuit. Several cell supervision circuits (CSCs) may be placed to monitor and manage one or more subsets of battery cells within the battery pack. The temperature of this battery pack is not distributed homogeneously which may cause a temperature gradient and affect the internal regulation circuit that generates a reference voltage used to determine the voltage of its supervised cell or cells and regulates power to the CSC components. This reference voltage is temperature dependent and thus a temperature mismatch of the CSCs. Based on the measurement circuit an external regulation terminal controls a pass device to share power between the pass device and the internal regulation circuit to manage the temperature of each CSC.

Abstract: A device is configured to receive, from a controller, an instruction requesting data for the device and determine a comparison result value based on a comparison of the data for the device and a reference value. The device is further configured to determine whether to respond to the instruction based on the comparison result value and, in response to a determination to respond to the instruction, output, to the controller, the comparison result value, wherein, to output the comparison result value, the device is configured to refrain from outputting the data for the device.

Abstract: A battery cell circuit of a battery management system configured to receive, from a previous battery cell circuit of a plurality of battery cell circuits connected in a daisy chain configuration or ring configuration, an instruction requesting a value for the battery cell circuit and determine a comparison result value based on a comparison of the value for the battery cell circuit and a reference value. The battery cell circuit is further configured to output, to a controller, the comparison result value, wherein, to output the comparison result value, the battery cell circuit is configured to refrain from outputting the value for the battery cell circuit.

Abstract: A device is configured to receive, from a controller, an instruction requesting data for the device and determine a comparison result value based on a comparison of the data for the device and a reference value. The device is further configured to determine whether to respond to the instruction based on the comparison result value and, in response to a determination to respond to the instruction, output, to the controller, the comparison result value, wherein, to output the comparison result value, the device is configured to refrain from outputting the data for the device.

Abstract: A method for monitoring a particular battery cell among a plurality of battery cells may be performed by a battery monitoring circuit, wherein a supply wire from a supply circuit and a voltage measurement wire of a battery management circuit comprises a shared path for the particular battery cell. The method may comprise performing a first voltage measurement associated with the particular battery cell; performing a second voltage measurement associated with the particular battery cell and an additional element; and determining a cell voltage associated with the particular battery cell based on the first voltage measurement and the second voltage measurement.

Abstract: A sound emission arrangement, having a seat that has a backrest surface and a headrest surface, where the sound emission arrangement has at least one first and one second actuator for vibration excitation, where each of the two actuators is arranged in the seat, so that the first and the second actuator are each arranged with their excitation surface on the inner side of a covering of the headrest surface or the inner side of a covering of the backrest surface at substantially the same height.

Abstract: A process for determining an impedance of a battery cell may comprise delivering an excitation current to the battery cell; performing, via an analog-to-digital converter (ADC), one or more first measurements associated with the battery cell in the presence of the excitation current, wherein the one or more first measurements comprise one or more current measurements; performing, via the ADC, one or more second measurements associated with the battery cell in the presence of the excitation current, wherein the one or more second measurements comprise one or more voltage measurements; and determining the impedance of the battery cell based on the one or more first measurements and the one or more second measurements.

Abstract: An actuator, including an electric drive for converting electrical signals into mechanical deflections, the drive having a coil through which the current of the electrical signal can flow, and having a permanent magnet which can be in electromagnetic interaction with the coil, the actuator furthermore has a housing and a flat body, the flat body being able to be mechanically deflected and/or mechanically excited into vibration by the electric drive and, in the process, being able to radiate acoustic sound signals, wherein the flat body is connected integrally to at least part of the housing and at least part of the drive is connected to the flat body.

Abstract: A device configured to monitor a voltage at a voltage rail for driving a motor includes processing circuitry configured to receive an indication of a switching signal for a phase of a plurality of phases of the motor. Inverter circuitry associated with the device is configured to electrically couple the phase to the voltage rail or to a reference rail associated with the voltage rail based on a driving signal that is generated based on the switching signal. The processing circuitry is further configured to determine a measurement time to measure the voltage at the voltage rail based on the switching signal and generate, using an analog-to-digital converter (ADC), a set of measured voltage values based on the voltage at the voltage rail during the measurement time.

Abstract: A device configured to monitor a voltage at a voltage rail for driving a motor includes processing circuitry configured to receive an indication of a switching signal for a phase of a plurality of phases of the motor. Inverter circuitry associated with the device is configured to electrically couple the phase to the voltage rail or to a reference rail associated with the voltage rail based on a driving signal that is generated based on the switching signal. The processing circuitry is further configured to determine a measurement time to measure the voltage at the voltage rail based on the switching signal and generate, using an analog-to-digital converter (ADC), a set of measured voltage values based on the voltage at the voltage rail during the measurement time.

Abstract: A sound emission arrangement, having a seat that has a backrest surface and a headrest surface, where the sound emission arrangement has at least one first and one second actuator for vibration excitation, where each of the two actuators is arranged in the seat, so that the first and the second actuator are each arranged with their excitation surface on the inner side of a covering of the headrest surface or the inner side of a covering of the backrest surface at substantially the same height.

Abstract: An actuator, including an electric drive for converting electrical signals into mechanical deflections, the drive having a coil through which the current of the electrical signal can flow, and having a permanent magnet which can be in electromagnetic interaction with the coil, the actuator furthermore has a housing and a flat body, the flat body being able to be mechanically deflected and/or mechanically excited into vibration by the electric drive and, in the process, being able to radiate acoustic sound signals, wherein the flat body is connected integrally to at least part of the housing and at least part of the drive is connected to the flat body.

Abstract: Apparatus and methods are disclosed for controlling multiple parameters on a multi-touch surface. Design of the apparatus and the multi-touch gestures enable unprecedented control of parameters by allowing the user to alter multiple parameters blindly in real-time with varying sensitivity.

Abstract: A joining element and a method for attaching the joining element on a surface of a component are disclosed. The joining element comprises a sleeve-shaped accommodation part for the accommodation of an element to be attached in the interior of the accommodation part. A flange-type extension having an indentation is provided wherein said indentation can be filled with suitable means of attachment for mounting the joining element onto surface.

Abstract: The present invention relates to a joining element 1 mand a suitable method for its attachment on a surface 42 of a component 40. The joining element 1 comprises a sleeve-shaped accommodation part 10 for the accommodation of an element to be attached in the interior 12, a flange-like extension 20 with an indentation 22, which is developed in such a way that the joining element 1 can be attached on the surface 42 by filling the indentation 22 with a suitable means of attachment 30.

Abstract: An areal implant, in particular for abdominal wall closure, has a flexible basic structure made from a knitted fabric comprising non-resorbable or slowly resorbable material or a combination of such materials. The knitted fabric of the basic structure is designed to stretch more than the tissue region destined to receive the implant below a critical force and stretch less than this tissue region above the critical force. The critical force lies below the highest load which is allowable for this tissue region. The basic structure is provided with a stiffening, synthetic resorbable material whose resorption time is less than that of the basic structure.