Abstract: A filter device for filtering electrical currents or electromagnetic interference, particularly common-mode interference. The filter device has a soft-magnetic core with a passage, a printed circuit board with a plurality of electronic components, and a holding section. The holding section of the printed circuit board can be put through the core passage wherein the passage is designed such that the holding section and the electronic components arranged on the holding section can be put through the passage.

Abstract: A circuit arrangement for operating an electric machine, which has a plurality of lines, each for one phase of an alternating current to the electric machine, each line having a plurality of series-connected switching elements that form a half bridge, the half bridge having a terminal between two switching elements, and the circuit arrangement being electrically couplable to the electric machine via the terminals of the half bridge. The circuit arrangement is characterized in that each line has a plurality of half bridges, which are electrically connected parallel to each other.

Abstract: A filter device for filtering electrical currents or electromagnetic interference, particularly common-mode interference. The filter device has a soft-magnetic core with a passage, a printed circuit board with a plurality of electronic components, and a holding section. The holding section of the printed circuit board can be put through the core passage wherein the passage is designed such that the holding section and the electronic components arranged on the holding section can be put through the passage.

Abstract: A full-bridge circuit includes a first, second, third and fourth switch element. According to the method the checking includes at least one measuring process. For the at least one measuring process either only the second or only the third switch element or only the first and the second switch element or only the third and the fourth switch element is/are switched on. At least one recording time in each measuring process, a parameter is recorded which is representative of an electrical current flowing through a measuring resistance Rm. Depending on the recorded parameter and the switched-on switch element(s), a fault or lack of fault is recognized in an inductive load L of an electromechanical converter in the full-bridge circuit. A duration for the checking is set such that during said duration an idle condition for the electromechanical converter is maintained.

Abstract: A full-bridge circuit comprises a first, second, third and fourth switch element (T1, T2, T3, T4). According to the method the checking comprises at least one measuring process. For the at least one measuring process either only the second or only the third switch element (T2, T3) or only the first and the second switch element (T1, T2) or only the third and the fourth switch element (T3, T4) is/are switched on. At least one recording time in each measuring process, a parameter is recorded which is representative of an electrical current flowing through a measuring resistance Rm. Depending on the recorded parameter and the switched-on switch element(S), a fault or lack of fault is recognised in an inductive load L of an electromechanical converter in the full-bridge circuit. A duration for the checking is set such that during said duration an idle condition for the electromechanical converter is maintained.

Abstract: A chassis suspension for a motor vehicle comprises an electrically driven chassis suspension component having a contact unit which is detachably linked with a mating contact unit disposed on a control cable. The mating contact unit is provided with an acceleration sensor having a connection cable.

Abstract: An electrical circuit includes a multilayer printed circuit board and a housing which shields against electromagnetic interference. A portion of at least one outer layer of the printed circuit board are in the form of contact areas which are connected to a respective conductor area on a further layer of the printed circuit board. The conductor area occupies an area region that is offset with respect to the contact area and forms a bushing capacitor with a ground area of the outer layer.

Abstract: A suppressor device for an electronic device comprising a plug-in device, comprising at least one plug element, which is arranged on a electrically conducting housing of the electronic device. A printed circuit board is arranged in the housing and bears an electronic circuit leading to the plug element. A capacitor is connected to the plug element and to the potential of the housing. The capacitor is arranged on the printed circuit board which protrudes from the inner part of the housing through an opening with a part thereof and which is also extends from the inner part of the housing to the outer side of the housing. The plug element is conductively connected to the capacitor and the circuit on the part of the printed circuit board located on the outer part of the housing.

Abstract: An electronic device includes a first module, which is protected against electromagnetic interference, and a second module. At least the first module has multilayer printed circuit boards with at least one inner layer with conductor tracks. The at least one inner layer forms flexible connections between the printed circuit boards of the first and second modules. The at least one inner layer forms a bushing capacitor together with other conductor tracks of the first module.

Abstract: An electrical device includes an electrically conductive shielding element which is positioned on a mounting substrate on which electronic components of an electric module are mounted. The mounting substrate has a conductor track structure for electrically connecting the electronic components of the electronic module and for connecting the module to other modules. The shielding element is formed so as to shield against electromagnetic radiation. At least one electrical conductor track forming a loop is formed around at least one component to be shielded on the mounting substrate, defines a boundary between the region with no electromagnetic shielding and the shielded region, and is connected to a fixed electric potential. At least one cutout is formed in the surface of the conductor track and of the mounting substrate therebelow.

Abstract: In a device for actuating a security device, preferably for securing a motor vehicle against unauthorized use, in which a control unit transmits a first coded electromagnetic signal (stimulus signal), in which a portable transmitter (radio key) receives the stimulus signal and transmits a second coded signal (enable signal), and in which the control unit is connected to the security device and actuates the latter if the enable signal is received and recognized, both the control unit and the radio key can after the carrier frequency of the coded electromagnetic signals. During signal transmission, this frequency is altered in a manner which is known only to the control unit and to the radio key.

Abstract: An electrical circuit includes a multilayer printed circuit board and a housing which shields against electromagnetic interference. A portion of at least one outer layer of the printed circuit board are in the form of contact areas which are connected to a respective conductor area on a further layer of the printed circuit board; The conductor area occupies an area region that is offset with respect to the contact area and forms a bushing capacitor with a ground area of the outer layer.

Abstract: A suppressor device for an electronic device comprising a plug-in device, comprising at least one plug element, which is arranged on a electrically conducting housing of the electronic device. A printed circuit board is arranged in the housing and bears an electronic circuit leading to the plug element. A capacitor is connected to the plug element and to the potential of the housing. The capacitor is arranged on the printed circuit board which protrudes from the inner part of the housing through an opening with a part thereof and which is also extends from the inner part of the housing to the outer side of the housing. The plug element is conductively connected to the capacitor and the circuit on the part of the printed circuit board located on the outer part of the housing.

Abstract: An electronic device includes a first module, which is protected against electromagnetic interference, and a second module. At least the first module has multilayer printed circuit boards with at least one inner layer with conductor tracks. The at least one inner layer forms flexible connections between the printed circuit boards of the first and second modules. The at least one inner layer forms a bushing capacitor together with other conductor tracks of the first module.

Abstract: An overvoltage protection device for an electronic apparatus having a plug-in device which has at least one plug-in element and is designed for insertion into a housing of the electronic apparatus. In overvoltage protection in which there is no need for any additional shielding measures from the electronics, a protection board which has a spark gap in order to dissipate overvoltages is arranged on the plug-in element.

Abstract: A suppression device for an electronic appliance having a plug-in device which has at least one plug-in element and is designed for attachment to a housing of the electronic appliance, with a capacitor having at least two capacitor plates being provided in order to improve the electromagnetic sensitivity. In a simple and low-cost suppression measure for electronic appliances, which is also suitable for mass production, the capacitor is arranged outside the housing of the electronic appliance and is electrically connected firstly to a plug-in element of the plug-in device and secondly to the potential of the electrically conductive housing.

Abstract: The invention relates to a suppression device for an electronic appliance having a plug-in device which has at least one plug-in element and is designed for attachment to a housing of the electronic appliance, with a capacitor having at least two capacitor plates being provided in order to improve the electromagnetic sensitivity. In a simple and low-cost suppression measure for electronic appliances, which is also suitable for mass production, the capacitor is arranged outside the housing of the electronic appliance and is electrically connected firstly to a plug-in element of the plug-in device and secondly to the potential of the electrically conductive housing.

Abstract: An electrical device includes an electrically conductive shielding element which is positioned on a mounting substrate on which electronic components of an electric module are mounted. The mounting substrate has a conductor track structure for electrically connecting the electronic components of the electronic module and for connecting the module to other modules. The shielding element is formed so as to shield against electromagnetic radiation. At least one electrical conductor track forming a loop is formed around at least one component to be shielded on the mounting substrate, defines a boundary between the region with no electromagnetic shielding and the shielded region, and is connected to a fixed electric potential. At least one cutout is formed in the surface of the conductor track and of the mounting substrate therebelow.

Abstract: An electronic device includes a housing for accommodating a carrier substrate. An electronic module and a conductor structure for making electrical connection with the electronic module are fitted on the carrier substrate. A filter device for improving the electromagnetic sensitivity is arranged in the housing. The filter device is formed by an electrical and/or capacitive connection of a first conductor surface of the conductor structure to an external first potential and by an electrical and/or capacitive connection of a second conductor surface of the conductor structure to a second electrical potential, the first conductor surface and the second conductor surface being arranged approximately opposite one another.

Abstract: A modular central electrical unit for motor vehicles, comprising an electrically insulating base body (1) having plug locations (3, 4), which are formed on the outer wall of the base body (1), for accommodating an electrical and an electromechanical functional unit, which plug locations are connected to one another and to a cable harness (10) and/or an electronic functional unit (11, 12, 13, 14, 15, 25). In a central electrical unit, which can be upgraded and/or modified without any additional space requirement, an electrical connection (5) which passes out of the base body (1) is such that it overhangs the base body (1), and a base body segment (8), which is formed from a plug body of a vehicle component (10) that is to be connected and is composed of insulating material, is mechanically attached to the base body (1), with the base body segment (8) and/or the fitted functional unit (14, 15, 25) being electrically connected to the electrical connection (5).