Various embodiments include a DC switch for disconnecting a DC line. The switch may include: a power semiconductor switch arranged in a current path of the DC line; a first sensor for measuring the input and output voltages; a second sensor for measuring the current flowing through the DC line; and a controller for the power semiconductor switch. The control device is configured to: switch on the DC switch for a first time period; determine the input voltage present; determine the output voltage present at the end of the first time period; determine the current intensity present at the end of the first time period; and determine an inductance and/or capacitance from the determined values.

An electronic determination device is configured for determining at least one characteristic parameter of an electric machine with P phases, P≥3, connected to an electric starter and including at least P-1 switching arms, each switching arm being connected to a respective phase of the electric machine. The determination device comprises a control module configured to control respective switching arm(s) to close and the other switching arm(s) to open, so as to generate a current injection on two phases of the electric machine; an acquisition module configured to acquire measurements of respective current(s) and voltage(s) for said two phases, further to the generation of the current injection; and a calculation module configured to calculate at least one characteristic parameter of the electric machine according to the respective current(s) and voltage(s) measurements.

The present disclosure relates to a detection circuit, an appliance, and a control method. The detection circuit includes at least a first capacitive component, a second capacitive component, a load to be detected and a detection component, where the first capacitive component is connected in series with the load to be detected to form a first branch, and the first branch is connected in parallel with a second branch including the second capacitive component. The detection component is configured to detect a first alternating current (AC) signal of the first branch and a second AC signal of the second branch, determine a first direction of the first AC signal and a second direction of the second AC signal, and determine a type of the load to be detected based on the first direction and the second direction.

A door handle assembly for a motor vehicle door includes a handle base to be secured to the door, a grip cover coupled to the handle base, an inductive proximity sensor, configured to produce an sensor signal, mounted to the grip cover opposite a portion of an outer surface of the grip cover defining a detection surface thereon, and an electrically conductive layer disposed on an inner surface of the grip cover, opposite the detection surface, and spaced apart from the inductive proximity sensor, the inductive proximity sensor producing a detectable change in the sensor signal upon detection of a deflection of the portion of the grip cover defining the detection surface sufficient to move the electrically conductive layer to within a detection proximity of the inductive proximity sensor, the detectable change in the sensor signal enabling the door handle to lock or unlock.

A method for operating an inverter includes applying, via a switching unit of the inverter, an AC voltage to a phase line in which a filter inductor is arranged, determining a coil current (i.sub.L) of the filter inductor and determining a coil voltage (u.sub.L) of the filter inductor, determining a first value (L(I.sub.x)) of the filter inductor for a first value of the coil current (I.sub.x), determining an inductance profile of the filter inductor with respect to the coil current, using the determined first value of the filter inductance and optionally using the at least one determined further value of the filter inductance, and controlling the switching unit of the inverter, via a control unit, to generate an alternating current in the phase line. At least one parameter of the control process is continuously adapted to the momentary coil current according to the determined current-dependent inductance profile.

Method for determining the behaviour of one electrical or electronic power component (2), with respect to a working limit condition, the method comprising the following operational steps: A. defining one three-dimensional mathematical space (3) of operational parameters of interest for the electrical or electronic power component (2), wherein the coordinates of an n-th point P.sub.n of the three-dimensional mathematical space (3) correspond to specific values of the operational parameters of interest for the electrical or electronic power component (2); B. defining one exploration field (4) of the three-dimensional mathematical space, one working limit condition for the electrical or electronic power component (2) and one set R of response parameters of interest for the electrical or electronic power component (2); C. exploring, said three-dimensional mathematical space (3) by: - the generation of at least one stimulus, determined based on the coordinates of the points P.sub.n of the three-dimensional mathematical space (3) and based on the exploration field (4), - the application of the at least one stimulus, to the at least one electrical or electronic power component (2), and - the detection of one corresponding response to the stimulus thereby applied, from the electrical or electronic power component (2), and based on the response thereby detected, determining, and storing one finite subset of points P.sup.∗.sub.n of said mathematical space (3) among the points P.sub.n of the mathematical space (3), for which that working limit condition of that electronic power component (2) is met; and D. determining one mathematical model that analytically describes the locus of the points P.sup.∗.sub.n of that three-dimensional mathematical space (3) thereby stored, thereby obtaining the locus (5) of the operational parameters that determine a response from said electrical or electronic power component (2) that meets that working limit condition.

An apparatus for detecting a stacking direction of internal electrodes of a multilayer capacitor includes a capacitor moving unit having a supply unit in which a plurality of multilayer capacitors are continuously supplied ad moving the supplied multilayer capacitors in one direction, a sensor unit including a coil, installed on the capacitor moving unit, and detecting inductance of the coil when each of the multilayer capacitors approaches the coil to determine a stacking direction of internal electrodes of the multilayer capacitor based on the detected inductance of the coil, and a separating unit installed on the capacitor moving unit and separating a multilayer capacitor selected as an unsuitable multilayer capacitor by the sensor unit.

An assembly with a secondary coil arranged on a coil carrier for a field device is described, wherein the field device comprises an electronics and an inductive interface connected to the electronics, and wherein the assembly can be used in the field device such that the field device can be connected via its interface to an inductive interface of a superordinate unit such that the secondary coil of the assembly, with a primary coil of the inductive interface of the superordinate unit, form a transformer for transmitting data and/or energy, which makes it possible to reduce the dimensions of field devices equipped with it and also contributes to increased operational safety, in that an assembly circuit formed by the secondary coil and at least one electronic component connected to the secondary coil via lines connected to it and arranged on the coil carrier is arranged on the coil carrier.

A system for detecting displacement of a movable member of an electromagnetic transducer having a magnetic coil-driven linear actuator with a static member and a movable mass mechanically coupled to the static member and having a back electromotive force present across terminals of a coil of the electromagnetic transducer is provided. The system may include a resistive-inductive-capacitive sensor comprising the coil, a driver configured to drive the resistive-inductive-capacitive sensor with a driving signal, a measurement circuit communicatively coupled to the resistive-inductive-capacitive sensor and configured to measure one or more of phase information and amplitude information associated with the resistive-inductive-capacitive sensor and based on the one or more of phase information and amplitude information, determine a displacement of movable mass, wherein the displacement of the movable mass causes a change in an impedance of the resistive-inductive-capacitive sensor.

A method of assessing whether a vehicle is straddled between lanes (12,14) on a multi-lane carriageway, the method comprising the steps of: a) measuring inductance change values from two adjacent inductive loops (22a, 20b) situated at a loop site, as the vehicle traverses the loop site; b) summing separate logarithms of the inductance change values, or taking a logarithm of the product of the inductance change values, to obtain a value; and c) comparing the value from step (b) against a predetermined threshold value to make a determination as to whether: i) a single vehicle is straddling multiple lanes (12,14), where the value from step (b) is on one side of the predetermined threshold value, or ii) two vehicles are present in adjacent lanes (12,14), where the value from step (b) is on the other side of the predetermined threshold value.