Huettinger Elektronik Gmbh & Co. Kg

Trumpf Huettinger Gmbh + Co. Kg

Trumpf Huttinger Gmbh + Co. Kg

Christian Fritsch

Ekkehard Mann

Erich Pivit

Thomas Kirchmeier

Christian Bock

Michael Glueck

Peter Wiedemuth

Markus Winterhalter

Moritz Nitschke

Daniel Krausse

Michael Glück

Markus Bannwarth

Martin Steuber

Rolf Merte

Ulrich Heller

Krishna Kishore Nedunuri

Gerhard Seifert

Christoph Obrecht

A method for producing an arc detection signal on the basis of a plurality of observation signals comprises producing an arc detection part-signal for each of at least two observation signals. Producing each of the part-signals includes correlating the respective observation signal with a correlation signal by influencing the correlation signal with the respective observation, thereby producing a correlation result; producing or modifying a coefficient on the basis of the correlation result; and weighting the respective observation signal with the coefficient. The arc detection part-signals are added to form the arc detection signal.

Method for producing an arc detection signal and arc detection arrangement

In one aspect, a method includes protecting passive components connected to a high-frequency generator. In another aspect, a system includes a high-frequency generator having an HF source generating a high-frequency power signal at a fundamental frequency, and having a first control circuit which is fed with a signal related to an HF power transmitted by a high-frequency cable between the high-frequency generator and a load.

Protecting passive HF generator components

In order to determine amplitudes of measurement signals originating from an AC power supply and to determine the phase shift (&#xf8;) between measurement signals more simply, the measurement signals are processed in measurement signal operation devices to form auxiliary signals each having a constant AC amplitude and to obtain first measurement values (v, a, rssi, rssi, rssi), in particular, from amplification factors (v) that are applied to the measurement signal (m, m, m). The phase shift between two auxiliary signals (h, h', h&#x2032;, h&#x2032;) is further determined as a second measurement value, in particular, by means of the time difference (&#x394;t) between the zero passages of the auxiliary signals (h, h&#x2032;, h&#x2032;, h&#x2032;).

Measurement signal processing

A current measurement device for measuring an electrical current, in particular in a contactless manner, in a current-carrying conductor, using a coil arrangement having a coil conductor and a circuit connected to the coil conductor, the coil arrangement being surrounded at least in portions by a coil shield. The coil shield and the circuit are connected to a ground potential independently of each other. The measurement accuracy is thereby increased.

Measuring electrical current flowing through a conductor

A 90&#xb0; hybrid for splitting or interconnecting radio frequency power includes four gate connections, capacitances and inductances for electric capacitive coupling and magnetic inductive coupling, an arrangement of strip conductors that are disposed approximately parallel to each other and whose ends form gate connections, and whose dimensions and mutual separations are dimensioned to form the electric capacitive and magnetic inductive couplings of the 90&#xb0; hybrid, and a ferrite ring surrounding the strip conductors to increase the inductive coupling.

90&#xb0; hybrid

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Waldkirch, Germany

Christian Fritsch