Abstract: The invention relates to a method for transferring a pourable medium (10) from a first vessel (12) into a second vessel (14), by means of a robot arm (16), wherein a movement 118) of the robot arm (16) can be controlled by at least one movement parameter (BP), including, inter alia, the following method steps: d) determining the mass of the medium (10) transferred into the second vessel (14) as an actual filling mass (IFM), and also the variation over time of the actual filling mass (IFM) of the medium (30; as an actual mass flow (IMS), by means of a balance 124), c) calculating a correcting mass flow (StMS) as a correcting variable (26) of a first control circuit (28) while taking into account the actual filling mass (FM) and the intended filling mass (SFM), f) using the correcting variable (26) of die first control circuit (28) as a reference variable (30) of a second control circuit (32) for the purpose that the calculated correcting mass flow (StMS) is used as the intended mass flow (SMS), g) calculating

Abstract: The present invention relates to a control circuit for controlling the output power of a primary-controlled switched mode power supply unit, which comprises a primary switch and a transformer with an auxiliary winding. Within the auxiliary winding, voltage pulses are induced by primary-sided switching operations, which can be taken into account when controlling the output power. In order to provide an improved control and an enhanced flexibility with respect to the operational parameters, the sampling instance is determined based on the duration of the voltage pulse at the auxiliary winding during a previous switching cycle. In order to detect a defective contact between the auxiliary winding and the control circuit in a particularly simple and secure manner, the negative voltage pulse at the auxiliary winding occurring when the switch is closed may be used for confirming a proper connection.

Abstract: A device for protecting the electronic circuitry of electrical appliances against damage from unacceptably high voltages. An element is interposed in the power supply paths which limits the application of an externally supplied excessive voltage to a predetermined time interval and which completely interrupts the current flow when the excessive voltage and current causes a heat build-up. This is accomplished by interposing pairs of spaced-apart solder surfaces at at least one point along the current paths to the electronic circuitry. One solder surface of each pair is connected to the power supply and the other to the power consumer. An element is soldered to the respective solder surfaces of the pairs and electrically closes the current path. A mechanically prestressed spring engages the element and reliably separates it from the solder surfaces when the solder melts due to excessive heating.

Abstract: The present invention relates to a control circuit for controlling the output power of a primary-controlled switched mode power supply unit, which comprises a primary switch and a transformer with an auxiliary winding. Within the auxiliary winding, voltage pulses are induced by primary-sided switching operations, which can be taken into account when controlling the output power. In order to provide an improved control and an enhanced flexibility with respect to the operational parameters, the sampling instance is determined based on the duration of the voltage pulse at the auxiliary winding during a previous switching cycle. In order to detect a defective contact between the auxiliary winding and the control circuit in a particularly simple and secure manner, the negative voltage pulse at the auxiliary winding occurring when the switch is closed may be used for confirming a proper connection.

Abstract: A circuit arrangement is described for supplying a load (1) from a direct voltage source (14) through a switch bridge (3 to 6), by which the direct voltage source (14) can be connected in alternating polarity to the load (1), comprising a control circuit (17) for controlling the switch bridge (3 to 6); and including a circuit for precisely adjusting and controlling a given D.C.

Abstract: A circuit arrangement is described for supplying a load (1) from a direct voltage source (at 2,3) through a combinatorial circuit part (4) comprising a control circuit (13) for controlling the current the load (1) in a starting time interval after start of the operation.

Abstract: A circuit for operating high-pressure gas discharge lamps comprises a full-wave rectifier (2) which is connected to an alternating voltage supply source and supplies an output direct voltage to a combinatorial circuit part comprising a switching transistor (3), a choke coil (4), a fly-wheel diode (5) and a storage capacitor (6), from which the lamp is energized. A further combinatorial circuit part (7, 8, 10, 11) comprises at least one electronic circuit element (7) coupled between the storage capacitor (6) and the lamp (9) and is controlled by a control device (12). The control device compares an instantaneous lamp current of higher frequency with a nominal-value signal composed of a sinusoidal voltage component having double the supply frequency and a d.c. voltage component having a value of at least the maximum amplitude of the sinusoidal voltage.