Abstract: An intermediate circuit current of a power converter is determined as precisely as possible in a simple and inexpensive manner. The intermediate circuit current is determined as a function of a detection of the measured output voltages and output currents of the individual phases.

Abstract: An intermediate circuit current of a power converter is determined as precisely as possible in a simple and inexpensive manner. The intermediate circuit current is determined as a function of a detection of the measured output voltages and output currents of the individual phases.

Abstract: A secondary-side rectifier of an inductive n-phase energy transmission system with N greater than or equal to 3, the energy transmission system including in each phase a resonant oscillating circuit, each resonant oscillating circuit including at least one inductor and at least one capacitor wherein secondary-side resonant oscillating circuits are magnetically coupleable to primary-side resonant oscillating circuits, wherein the secondary-side resonant oscillating circuits are star-connected or mesh-connected and are connected to a rectifier via external conductors, wherein the rectifier includes a series connection of a plurality of diodes with identical conducting directions, wherein a smoothing capacitor is connected in parallel with the series connection and an output voltage of the rectifier is applied to connecting points of the smoothing capacitor wherein each external conductor is connected to an anode of the diodes.

Abstract: A device for contactless energy transmission may include series resonant circuits on primary and secondary winding sides, which may each include at least one coil and at least two capacitors. The series resonant circuit on the primary winding side may be connected to an upstream circuit, and the series resonant circuit on the secondary side may be connected to a downstream circuit. One or both coils may be coupled to fault-recognition resistors.

Abstract: The invention relates to a secondary-side coil arrangement for an inductive energy transmission system for transmitting energy between a primary-side and a secondary-side coil arrangement (A1, A2), characterised in that the secondary-side coil arrangement (A1) has coils (SS1, SS2, SS3, SS4) which form four coil regions (BES1, BES2, BES3, BES4) of the coil arrangement (A1) which are arranged beside each other in a plane, wherein each coil (SS1, SS2, SS3, SS4) forms an oscillating circuit (RESS) together with at least one capacitor (CS1-4).

Abstract: The invention relates to a primary-side coil assembly for an inductive energy transfer system for transferring energy between a primary- and a secondary-side coil assembly (A1, A2). The invention is characterised in that the primary-side coil assembly (A1) has four coils (z, SP3, SP4) which form the four adjacent coil regions (BEP1, BEP2, BEP3, BEP4) of the coil assembly (A1), the phase position (?Ii) of the coil fluxes (SP1, SP2, SP3, SP4) in relation to one another flowing through the coils (I1, I2, I3, I4) determining the phase position (?Bi) of the magnetic flux density (Bi) which is established in the regions (BEP1, BEP2, BEP3, BEP4).

Abstract: The invention relates to an inductive energy transfer system with a primary-side coil arrangement (LP) and a secondary-side coil arrangement (LS), which in each case together with capacities (CP, CS) form resonant circuits (RESP, RESS), characterised in that the primary-side coil system (SPP) comprises two coils (LP) connected in series, the connection point of which (PP) is connected via a primary-side impedance (LPM) with an input terminal (3) of the circuit (1) supplying the primary-side resonant circuit (RESP) and/or in that the secondary coil system (SPS) comprises two coils (LS) connected in series, the connection point of which (PS) is connected via a secondary-side impedance (LSM) to an output terminal (4) of the circuit (2) downstream of the secondary-side resonant circuit (RESS).

Abstract: The invention relates to a detection system for detecting electrically conductive foreign objects (F) in the area (3) between the primary winding and secondary winding of an inductive power transmission system, wherein the detection system also has at least one primary coil (LA) and at least one secondary coil (LB) which are coupled together, and that at least one primary coil (LA) and/or at least one secondary coil (LB) of the detection system is an integral part of at least one electric resonant circuit (LA-CA; LB-CB), wherein an electric source (7) energises at least one resonant circuit (LA-CA), and that a monitoring device monitors at least one electric variable on the secondary side and/or on the primary side of the detection system and effects the foreign object detection by means of the measured electric variable.

Abstract: An inverter may include at least two switching means for feeding a series oscillator circuit from a source, wherein a control device of the inverter controls the switching means in such a way that: in a first mode A, the inverter feeds the oscillator circuit via the switching means from the source; and in a second mode B, the oscillator circuit is decoupled from the source, wherein the control device switches back and forth between the two modes A and B to set a reference current in the oscillator circuit or a reference voltage on the oscillator circuit.

Abstract: A secondary-side rectifier of an inductive n-phase energy transmission system with N greater than or equal to 3, the energy transmission system including in each phase a resonant oscillating circuit, each resonant oscillating circuit including at least one inductor and at least one capacitor wherein secondary-side resonant oscillating circuits are magnetically coupleable to primary-side resonant oscillating circuits, wherein the secondary-side resonant oscillating circuits are star-connected or mesh-connected and are connected to a rectifier via external conductors, wherein the rectifier includes a series connection of a plurality of diodes with identical conducting directions, wherein a smoothing capacitor is connected in parallel with the series connection and an output voltage of the rectifier is applied to connecting points of the smoothing capacitor wherein each external conductor is connected to an anode of the diodes.

Abstract: The invention relates to a secondary side rectifier of an inductive energy transmission system, wherein the energy transmission system has a single-phase resonant tuned circuit, which has at least one inductor (L) and at least one capacitor and can be magnetically coupled to a primary side resonant tuned circuit, and wherein the secondary side rectifier has a B2 bridge circuit, which Consists of four diodes (D1, D2, D3, D4) and is connected on the input side to the secondary side resonant tuned circuit, and the output voltage of which is smoothed by at least one smoothing capacitor (Cgr), characterised in that a switching means (S) is connected in parallel with a diode (D1, D2, D3, D4), by means of which the diode (D1, D2, D3, D4) can be short-circuited.

Abstract: The invention relates to an inductive energy transfer system, having at least one primary coil (Sp1) and at least one secondary coil (Sp2), which are coupled or able to be coupled with one another magnetically and which form a primary-side and a secondary-side resonant circuit (Repri, Resek) having at least one capacitance (C1, C2) respectively, characterised in that a primary-side inverter (15) generates a pulsed voltage (UW), in particular a pulsed square wave voltage, from a unipolar primary voltage (|UN|) or a DC voltage (UG) and supplies the primary-side resonant circuit (Repri), wherein the primary-side inverter (15) is pulsed or adjusted or the pulse of the voltage, in particular square wave voltage, generated by the primary-side inverter (15), is selected or adjusted in such a way that a secondary AC voltage (Ui) induced in the secondary-side resonant circuit (Resek) and having a carrier frequency (fT) results, wherein the amplitude of the secondary AC voltage (Ui) oscillates at mains frequency (f0),

Abstract: The invention relates to an inductive energy transmission system for the transfer of electrical energy between a base station and a movable consumer, in particular a vehicle, the energy transmission system being able to transfer electrical energy from a base station to the consumer and/or from the consumer to the base station, said energy transmission system comprising at least one primary-side flat coil (Sp), arranged in the base station, and a flat coil (Ss) arranged on the secondary side in the consumer, having a plurality of turns (3, 4) in each case, the turns (3, 4) being arranged concentrically or spirally around a centre (M), characterised in that there is a relative spacing (d1) at least between some adjacent turns (13) of a primary-side flat coil (Sp), and the distance (9, 10) between the turn arranged closest to the centre (M) and the turn arranged furthest from the centre (M) in the primary-side coil (Sp) is greater than in a secondary-side coil (Ss).

Abstract: The invention relates to an inductive contactless energy and data transmission system (1) having a primary-side coil arrangement and a secondary-side coil arrangement, the primary-side coil arrangement and secondary-side coil arrangement each having at least one coil (3, 7) for energy transmission and at least one coil (4, 6) for data transmission, characterised in that the primary-side and secondary-side coils for energy transmission are in the form of coils (3, 7) which each have a single winding direction, and in that the coils (4, 6) for data transmission are coil arrangements which each have at least two coil fields (4a, 4b, 4c, 4d).