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: 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: An ignition coil includes a primary coil carrying primary coil body, a low voltage connection area and a secondary coil inductively coupled with the primary coil for the provision of a high voltage for a spark plug of the combustion engine. The secondary coil is carried on a secondary coil body concentrically enclosed by the primary coil body. A high voltage connection area is provided, in which the secondary coil contacts the spark plug. The secondary coil body encloses a cylindrical, magnetic core, and primary coil body and secondary coil body are both surrounded by an electrically and magnetically conductive shell. The shell includes a longitudinal slit therethrough. The primary coil includes an uneven number of layers. A remote extending coil lead from the low voltage connection is led along the longitudinal slit of the shell. The coil lead runs at least partially within the outer perimeter of the shell.