Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: In order to determine amplitudes of measurement signals originating from an AC power supply and to determine the phase shift (ø) 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, rssi1, rssi2), in particular, from amplification factors (v) that are applied to the measurement signal (m, m1, m2). The phase shift between two auxiliary signals (h, h?, h?1, h?2) is further determined as a second measurement value, in particular, by means of the time difference (?t) between the zero passages of the auxiliary signals (h, h?, h?1, h?2).

Abstract: In order to determine amplitudes of measurement signals originating from an AC power supply and to determine the phase shift (ø) 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, rssi1, rssi2), in particular, from amplification factors (v) that are applied to the measurement signal (m, m1, m2). The phase shift between two auxiliary signals (h, h?, h?1, h?2) is further determined as a second measurement value, in particular, by means of the time difference (?t) between the zero passages of the auxiliary signals (h, h?, h?1, h?2).

Abstract: A plasma power supply controller jointly monitors a plurality of plasma power supply devices of one or more electrical loads. The controller includes at least one signal input, at least one signal output connected to at least one first logic switching device configured to actuate a first power interrupter of at least one of the plasma power supply devices, and a safety switching device. The at least one signal input is configured to receive indication signals of at least one indication device. The safety switching device is configured to detect a state or a state change of at least one of the indication devices and to interrupt the current supply of at least one of the plasma power supply devices using the first logic switching device upon a detection of a predetermined state or upon a detection of a state change of at least one of the indication devices.

Abstract: 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.

Abstract: A 90° 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° hybrid, and a ferrite ring surrounding the strip conductors to increase the inductive coupling.

Abstract: 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.

Abstract: A 90° 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° hybrid, and a ferrite ring surrounding the strip conductors to increase the inductive coupling.

Abstract: The present invention relates to an acidic effervescent component for direct tableting of effervescent tablets and a process for its preparation.

Abstract: An effervescent ibuprofen preparation comprisinga) basic granules consisting of 1 part by weight of water-soluble ibuprofen salt, 2 to 10 parts by weight of excipient, 0.3 to 0.8 part by weight of stabilizer and 0.1 to 1 part by weight of sodium carbonate or potassium carbonate andb) 1 to 4 parts by weight of an acid component.

Abstract: The present invention relates to an antacid preparation having a prolonged gastric residence time, comprising an antacid active substance, calcium polycarbophil and a water-insoluble, anionic polymer.