Abstract: Coil pad for wireless power transfer having a front plane radiating an electromagnetic field during wireless power transfer, the coil pad having a circumference encompassing a positioning contour reflecting positioning options for at least one point-to-point communication element to be embedded into the front plane, the positioning contour having rotational symmetry with respect to a first axis of symmetry and a second axis of symmetry orthogonal to the first axis of symmetry, the first axis of symmetry and the second axis of symmetry intersecting at an origin and defining a coordinate system for the front plane, and the coil pad comprising a point-to-point communication element embedded into the front plane at an intersection of the positioning contour and a positioning hand extending from the origin along a first direction defined by a first angle of rotation in clockwise direction relative to the first axis of symmetry.

Abstract: Efficient measures to improve electrical performance in a mobile side output circuitry of a wireless power transmission system are provided. The mobile side circuitry of the wireless power transmission system has a mobile side transformer stage comprising at least one primary side winding and a plurality of secondary side windings. To the plurality of secondary side windings there are connected a plurality of mobile side AC/DC converters. According to a first alternative of the present invention output terminal pairs of the plurality of mobile side AC/DC converters are connected in series. According to a second alternative of the present invention output terminal pairs of the plurality of mobile side AC/DC converters are connected in parallel.

Abstract: A circuit arrangement for providing an output voltage and/or an output current from an input voltage Vin, comprising: a first switching converter (10) having a storage element (120) and a first switching element (110), adapted to charge the storage element (120) from the input voltage Vin up to a threshold voltage and a second switching converter (20) having a second switching element (210) adapted to start with the threshold voltage at the storage element (120) and to provide the output voltage Vout and/or the output current Iout from the input voltage Vin, wherein the first switching element (110) has a minimum driving voltage, at and above which the first switching element (110) can perform switching operations, the second switching element (210) has a minimum driving voltage, at and above which the second switching element (210) can perform switching operations, and wherein the minimum driving voltage of the first switching element is smaller than the minimum driving voltage of the second switching elemen

Abstract: A circuit arrangement for providing an output voltage and/or an output current from an input voltage Vin, comprising: a first switching converter (10) having a storage element (120) and a first switching element (110), adapted to charge the storage element (120) from the input voltage Vin up to a threshold voltage and a second switching converter (20) having a second switching element (210) adapted to start with the threshold voltage at the storage element (120) and to provide the output voltage Vout and/or the output current Iout from the input voltage Vin, wherein the first switching element (110) has a minimum driving voltage, at and above which the first switching element (110) can perform switching operations, the second switching element (210) has a minimum driving voltage, at and above which the second switching element (210) can perform switching operations, and wherein the minimum driving voltage of the first switching element is smaller than the minimum driving voltage of the second switching elemen

Abstract: A current-limiting circuit for limiting switch-on currents or transients includes a switch, a diode, an inductance, an input with a first connection and second connection, and an output with a first connection and second connection. The second connection of the input is connected via the switch to the junction of an inductance and the anode of a diode and via the inductance to the second connection of the output. The cathode of the diode is connected to the first connection of the input and to the first connection of the output. The switch is preferably an electronic switch controlled to provide clocked current limitation.

Abstract: A current-limiting circuit for limiting switch-on currents or transients includes a switch, a diode, an inductance, an input with a first connection and second connection, and an output with a first connection and second connection. The second connection of the input is connected via the switch to the junction of an inductance and the anode of a diode and via the inductance to the second connection of the output. The cathode of the diode is connected to the first connection of the input and to the first connection of the output. The switch is preferably an electronic switch controlled to provide clocked current limitation.

Abstract: There is provided a resonance transducer including a main bridge linked with an input signal. The resonance transducer includes a transformer assembly across which an output signal can be tapped, a resonance circuit and a control circuit. In this arrangement, the transformer assembly is linked with the main bridge and the resonance circuit, the resonance circuit is further linked with the main bridge and the control circuit, and the control circuit is further linked with the main bridge.

Abstract: A buck converter is equipped with a switch, a diode, an inductance, a capacitor, an input with a first connection and second connection, and an output with a first connection and second connection. The first connection of the input is connected to the first connection of the output via a series circuit comprised of the switch and the inductance; in particular, the switch is provided on the input side and the inductance is provided on the output side. In addition, the cathode of the diode is connected to the connection between the switch and the inductance while the anode of the diode is connected to the second connection of the input and to the second connection of the output. The capacitor is connected in parallel with the connections of the output. It is possible to trigger the switch by combining a first signal with a second signal and a third signal corresponding to a control variable from the output of the buck converter may be used to adjust the output signal.

Abstract: A circuit arrangement for overvoltage detection is disclosed, which has an input, a filter, a transient detection, and an output. The filter and the transient detection are connected to the input; the output is connected to the filter and the transient detection. The circuit arrangement provides overvoltage problems. A method for operating the circuit arrangement is also disclosed.

Abstract: A current-limiting circuit, including a switch, a diode, an inductance, an input with a first connection and second connection, and an output with a first connection and second connection. The first connection of the input is connected via the switch to the inductance and to the cathode of the diode and is connected via the inductance to the first connection of the output. In addition, the anode of the diode is connected to the second connection of the input and to the second connection of the output.

Abstract: A buck converter is equipped with a switch, a diode, an inductance, a capacitor, an input with a first connection and second connection, and an output with a first connection and second connection. The first connection of the input is connected to the first connection of the output via a series circuit comprised of the switch and the inductance; in particular, the switch is provided on the input side and the inductance is provided on the output side. In addition, the cathode of the diode is connected to the connection between the switch and the inductance while the anode of the diode is connected to the second connection of the input and to the second connection of the output. The capacitor is connected in parallel with the connections of the output. It is possible to trigger the switch by combining a first signal with a second signal and a third signal corresponding to a control variable from the output of the buck converter may be used to adjust the output signal.