Abstract: The invention relates to a method (100) and a control device (SG) for operating power semiconductor switches (LH1 . . . LHn) connected in parallel, having the following steps: determining a nominal value for a total gate series resistor (GGVL . . . GGVn) of at least one power semiconductor switch (LH1 . . . LHn); providing the total gate series resistor (GGV1 . . . GGVn) for the at least one power semiconductor switch (LH1 . . . LHn) depending on the relevant nominal value, and operating the at least one power semiconductor switch (LH1 . . . LHn) with the associated total gate series resistor (GGV1 . . . GGVn).

Abstract: A circuit arrangement (1) for operating an electric machine. The circuit arrangement (1) includes at least one high-voltage half-bridge circuit (2), which has a high-side semiconductor switch (3) and a low-side semiconductor switch (4). In each case one gate driver (5, 6) is assigned to the semiconductor switches (3, 4) for actuating said semiconductor switches, and includes a low-voltage controller (7), which actuates the gate drivers (5, 6). A high-voltage controller (11) senses output signals (AS) of the gate drivers (5, 6) and transmits at least the sensed output signals (AS) to the low-voltage controller (7) using a data bus (12).

Abstract: The invention relates to a method for operating an electric circuit arrangement (1) which has a low-voltage sub-network (2) and a high-voltage sub-network (3). A test signal is transmitted from one of the sub-networks (2, 3) to the other sub-network (3, 2) in order to detect a fault depending on the reception of the signal in the other sub-network (3, 2) and to switch the circuit arrangement (1) to a safe state. A data bus (5), which connects a low-voltage control unit (6) of the low-voltage sub-network (2) to a high-voltage control unit (7) of the high-voltage sub-network (3), is operated with a maximum bus load at least temporarily as a test signal so that data packets are transmitted at fixed time intervals, and a fault is detected depending on a delay of the last received data packet, said delay being detected by the control unit (7, 6) receiving the data packets.

Abstract: The invention relates to a device and to a method for determining a voltage. The voltage to be determined is a direct voltage at the input of a flyback converter. The flyback converter comprises at least a flyback-converter transformer and a switching element on the primary side of the flyback-converter transformer. In order to determine the voltage at the input of the flyback converter, a voltage on the secondary side of the flyback-converter transformer is sensed and evaluated in correlation with the switching state of the switching element on the primary side.

Abstract: The invention relates to a circuit arrangement (1), in particular for controlling an electric machine, comprising at least one high-voltage semiconductor bridge circuit (2) that includes a low-side semiconductor switch (4) and a high-side semiconductor switch (3). A high-side gate driver (5) is assigned to the high-side semiconductor switch (3), and a low-side gate driver (6) is assigned to the low-side semiconductor switch (4). According to the invention, a high-side flyback converter (8) is connected upstream of the high-side gate driver, and a low-side flyback converter (9) is connected upstream of the low-side gate driver (6), at least one of the flyback converters (7, 8, 9) being designed as a high-voltage flyback converter.

Abstract: The invention relates to a container for the accommodation of products during a high pressure treatment of the products, whereby the container comprises an outer wall and a cavity situated within the outer wall for the accommodation of the products. With the container according to the invention at least one section of the outer wall is formed by a large number of mutually coupled chain links, which are arranged in the form of at least one multi-dimensional chain link matrix.

Abstract: A circuit arrangement (1) for operating an electric machine. The circuit arrangement (1) includes at least one high-voltage half-bridge circuit (2), which has a high-side semiconductor switch (3) and a low-side semiconductor switch (4). In each case one gate driver (5, 6) is assigned to the semiconductor switches (3, 4) for actuating said semiconductor switches, and includes a low-voltage controller (7), which actuates the gate drivers (5, 6). A high-voltage controller (11) senses output signals (AS) of the gate drivers (5, 6) and transmits at least the sensed output signals (AS) to the low-voltage controller (7) using a data bus (12).

Abstract: The invention relates to a packaging machine with a sealing device, whereby a sealing-tool upper part or sealing-tool lower part can be excited to a vibration (S) approximately parallel to a sealing plane (E).

Abstract: The disclosure relates to a packaging machine for packaging products, in particular food, wherein the packaging machine comprises at least one packaging station for producing packagings that accommodate products, and at least one high-pressure treatment station for high-pressure treatment of the products contained in the packagings. The disclosure is characterized in that a central control system for the packaging station and the high-pressure treatment station are provided. The disclosure moreover also relates to a method for operating such a packaging machine.

Abstract: The present disclosure relates to a device for the high-pressure treatment of products, particularly of packaged foodstuffs. The device comprises a high-pressure chamber and a discharge valve for discharging high-pressure medium out of the high-pressure chamber. The invention is characterized in that a controllable actuator is provided for adjusting the rate of the pressure decrease in the high-pressure chamber at least over a predetermined pressure range. The disclosure also relates to a method for the high-pressure treatment of products, wherein pressure decrease takes place in a first phase and in a second phase, and the mean pressure decrease rate in the first phase is higher than in the second phase.

Abstract: The present disclosure relates to a device for the high-pressure treatment of products, particularly of packaged foodstuffs. The device comprises a high-pressure chamber and a discharge valve for discharging high-pressure medium out of the high-pressure chamber. The invention is characterized in that a controllable actuator is provided for adjusting the rate of the pressure decrease in the high-pressure chamber at least over a predetermined pressure range. The disclosure also relates to a method for the high-pressure treatment of products, wherein pressure decrease takes place in a first phase and in a second phase, and the mean pressure decrease rate in the first phase is higher than in the second phase.

Abstract: The disclosure relates to a transport container for accommodating products during a high-pressure treatment of these products. By means of the transport container, the products can be transported into and out of a chamber in which they are high-pressure treated. The transport container comprises a lower component and an upper component which are adapted to be connected to one another, the lower component as well as the upper component being configured for accommodating at least one product.

Abstract: A packaging machine for producing closed packages includes a chamber that can be sealed in an airtight manner around one or a plurality of packages, a gas flushing unit for flushing with a gas the at least one package contained in the chamber, at least one gas line leading into the chamber or out of the chamber as well as a measuring device for determining a concentration of the gas. The measuring device comprises a measuring head for reading, through the use of electromagnetic radiation, an indicator for the concentration of the gas. The indicator is arranged in an interior of the chamber, in an interior of a package and/or in an interior the at least one gas line.

Abstract: The invention relates to a container for the accommodation of products during a high pressure treatment of the products, whereby the container comprises an outer wall and a cavity situated within the outer wall for the accommodation of the products. With the container according to the invention at least one section of the outer wall is formed by a large number of mutually coupled chain links, which are arranged in the form of at least one multi-dimensional chain link matrix.

Abstract: The invention relates to a packaging machine with a sealing device, whereby a sealing-tool upper part or sealing-tool lower part can be excited to a vibration (S) approximately parallel to a sealing plane (E).

Abstract: The disclosure relates to a transport container for accommodating products during a high-pressure treatment of these products. By means of the transport container, the products can be transported into and out of a chamber in which they are high-pressure treated. The transport container comprises a lower component and an upper component which are adapted to be connected to one another, the lower component as well as the upper component being configured for accommodating at least one product.

Abstract: The present disclosure relates to a device for the high-pressure treatment of products, particularly of packaged foodstuffs. The device comprises a high-pressure chamber and a discharge valve for discharging high-pressure medium out of the high-pressure chamber. The invention is characterized in that a controllable actuator is provided for adjusting the rate of the pressure decrease in the high-pressure chamber at least over a predetermined pressure range. The disclosure also relates to a method for the high-pressure treatment of products, wherein pressure decrease takes place in a first phase and in a second phase, and the mean pressure decrease rate in the first phase is higher than in the second phase.

Abstract: The disclosure relates to a packaging machine for packaging products, in particular food, wherein the packaging machine comprises at least one packaging station for producing packagings that accommodate products, and at least one high-pressure treatment station for high-pressure treatment of the products contained in the packagings. The disclosure is characterized in that a central control system for the packaging station and the high-pressure treatment station are provided. The disclosure moreover also relates to a method for operating such a packaging machine.

Abstract: A packaging machine for producing closed packages (21) includes a chamber (17) that can be sealed in an airtight manner around one or a plurality of packages, a gas flushing unit (34) for flushing with a gas the at least one package (21) contained in the chamber (17), at least one gas line (32, 33) leading into the chamber (17) or out of the chamber (17) as well as a measuring device (35) for determining a concentration of the gas. The measuring device (35) comprises a measuring head (37) for reading, by means of electromagnetic radiation, an indicator (39) for the concentration of the gas. The indicator is arranged in an interior of the chamber (17), in an interior of a package (21) and/or in an interior the at least one gas line (32, 33).