Abstract: An arrangement for measuring the position of a magnet relative to a ferromagnetic magnetic core, has a magnetic core, a conductor, which is guided in such a way through the toroidal core that the conductor and the toroidal core form an inductive arrangement, and an evaluation circuit for evaluating the saturation state of the toroidal core of the inductive arrangement as a measure of the distance of the magnet relative to the magnetic core.

Abstract: The invention relates to a high-pass branch (7) of a frequency separating filter for ADSL systems comprising inductive components (11, 14) which dispose of magnet cores made of a soft magnetic amorphous or nanocrystalline. As a result, frequency separating filters are provided which comprise small structural shapes and which have especially beneficial properties in the relevant frequency and temperature range.

Abstract: A filter arrangement for replacing a standard filter for notch diplexers in telephone networks comprising a shunt arm and two longitudinal arms in a T arrangement, wherein the first longitudinal arm has a first inductance (L1), the second longitudinal arm has a second inductance (L3), and the shunt arm has a third inductance (L2), in addition to comprising a capacitor (C2) arranged in a series. The third inductance (L2) is increased in relation to the standard filter and the capacitor (C2) is correspondingly reduced, whereby a neutral point is maintained inside a given area.

Abstract: A filter system includes at least two longitudinal branches with longitudinal inductors and at least one filter section (B) and an adjacent filter section (A). The filter section (B) is provided with at least one transverse branch that is interposed between the longitudinal branches, the adjacent filter section (A) adjoining the transverse branch. The number of inductors of a filter section that arc wound around different magnet cores can be reduced by equivalence transformation.

Abstract: Low-pass filter for a diplexer in an ADSL communications system comprising a low-pass filter (8) with chokes (9). Said chokes (9) have magnetic cores made of an alloy, especially a nanocristalline or amorphous alloy.

Abstract: The invention relates to a low pass filter (7′) which is adapted to a complex terminator wherein at least one inductor (17) is provided with a parallel-connected real resistor (18) in order to increase reflection dampening in the series arm. In the low pass filter (7′) is provided with at least one inductor (17) series arm which is not connected in parallel to a real resistor.

Abstract: The filter system designed according to the inventive method comprises at least two longitudinal branches with longitudinal inductive resistors and at least one filter step (B), and an adjacent filter step (A). The filter step (B) is provided with at least one transverse branch that is interposed in between the longitudinal branches, the adjacent filter step (A) directly adjoining the transverse branch. The umber of inductive resistors of a filter step that are wound around different magnet cores can be reduced by equivalence transformation.