Abstract: A glass panel device having a switchable glass panel and a control unit for controlling the switchable glass panel with a control voltage is provided, where the control voltage is composed of a first AC voltage signal and a second AC voltage signal, where the first AC voltage signal is phase-shifted by 180° with respect to the second AC voltage signal; the control unit has a first analogue amplifier for amplifying the first AC voltage signal comprising two first power switches and a second analogue amplifier for amplifying the second AC voltage signal comprising two second power switches, where each one power switch of the two analogue amplifiers together form an upper voltage circuit and the respective other power switches of the two analogue amplifiers together form a lower voltage circuit.

Abstract: The invention relates to an arrangement for operating an electric motor, for example an electric motor for actuating a roof component, in a vehicle. Therein, the electric motor is electrically connected via at least two control lines with a motor control unit. The motor control unit is configured to control the electric motor by means of pulse width modulation. The motor control unit is configured to operate a first one of the two drive lines as an inactive line, and to operate a second one of the two drive lines as an active line during control of the electric motor. A switching module associated with the electric motor is configured to connect a terminal of the pole housing of the electric motor with the drive line which is operated as the inactive line during operation of the electric motor. The invention further relates to an electric motor as well as to a method of operating an electric motor, for example an electric motor for actuating a roof component, in a vehicle.

Abstract: A protective circuit includes an input that provides a first supply voltage, a voltage regulator that provides a second supply voltage based on the first supply voltage, a measuring device that identifies an impedance of the voltage regulator, and a self-locking switching element configured to connect the first supply voltage with the voltage regulator if an impedance of the voltage regulator exceeds a predefined impedance value.

Abstract: A system circuit board configured to be supplied by at least one power supply unit, with an operating voltage in an operating state and a stand-by voltage in at least one stand-by state, the system circuit board includes at least one connection device for at least one extension card, wherein the connection device is configured to provide at least one first card voltage on the basis of the operating voltage; at least one switching element arranged on the system circuit board and configured to disconnect the at least one connection device from the operating voltage; and a control device arranged on the system circuit board, and configured to identify a type of a connected power supply unit and send a switching signal to the switching element depending on the identified type.

Abstract: A protective circuit includes an input that provides a first supply voltage, a voltage regulator that provides a second supply voltage based on the first supply voltage, a measuring device that identifies an impedance of the voltage regulator, and a self-locking switching element configured to connect the first supply voltage with the voltage regulator if an impedance of the voltage regulator exceeds a predefined impedance value.

Abstract: A computer system includes power supply providing at least one secondary supply voltage to generate operating voltage and a standby voltage; a system board with a plurality of system components arranged thereon; at least one sequencing microcontroller arranged on the system board for time-controlled provision of at least one of the operating voltage and the standby voltage to the plurality of system components; and at least one button that switches the computer system from a standby state to an operating state; wherein the sequencing microcontroller is configured, when the button is held for a first predefined time period indicating a forced switching of the computer system from the operating state to the standby state, to disconnect the plurality of system components from both the operating voltage and the standby voltage for a second predefined time period so that each of the plurality of system components is reset.

Abstract: A Power-over-Ethernet terminal includes a plurality of components including at least one network communications port, a first plug connector electrically coupled with the network communications port, a first isolating transformer configured for the decoupling of signals, the first isolating transformer electrically coupled with the first plug connector, and a network communications unit electrically couplable with the first isolating transformer, wherein the first plug connector is configured to be selectively connected to at least one bridging element or an add-on board, such that when the at least one bridging element is connected to the first plug connector, a direct electric connection between the communications port and the first isolating transformer is established, and when the add-on board is connected to the first plug connector, an indirect electric connection between the network communications port and the network communications unit via a second isolating transformer arranged on the add-on board i

Abstract: A system circuit board configured to be supplied by at least one power supply unit, with an operating voltage in an operating state and a stand-by voltage in at least one stand-by state, the system circuit board includes at least one connection device for at least one extension card, wherein the connection device is configured to provide at least one first card voltage on the basis of the operating voltage; at least one switching element arranged on the system circuit board and configured to disconnect the at least one connection device from the operating voltage; and a control device arranged on the system circuit board, and configured to identify a type of a connected power supply unit and send a switching signal to the switching element depending on the identified type.

Abstract: A computer system includes power supply providing at least one secondary supply voltage to generate operating voltage and a standby voltage; a system board with a plurality of system components arranged thereon; at least one sequencing microcontroller arranged on the system board for time-controlled provision of at least one of the operating voltage and the standby voltage to the plurality of system components; and at least one button that switches the computer system from a standby state to an operating state; wherein the sequencing microcontroller is configured, when the button is held for a first predefined time period indicating a forced switching of the computer system from the operating state to the standby state, to disconnect the plurality of system components from both the operating voltage and the standby voltage for a second predefined time period so that each of the plurality of system components is reset.

Abstract: An energy supply assembly includes a supply input that provides a first voltage VIN with a maximum output current; a first voltage converter connected to the supply input to convert the first voltage VIN into a second voltage; an intermediate storage element connected to the first voltage converter to temporarily store electric energy of the second voltage; at least one first supply output connected to the supply input to provide the first voltage VOUT1; at least one second supply output connected to the intermediate storage element to provide a further supply voltage VOUT2; a measuring device to measure a current received via the supply input and/or a current output via the first supply output; and a control circuit that actuates the first voltage converter, wherein the control circuit is configured to actuate the first voltage converter on the basis of the measured current such that the current output via the at least one first supply output and the current received by the first voltage converter together d

Abstract: A computer system having at least one interface includes at least one voltage monitoring device, and at least one interface control device including a signaling circuit, wherein the interface control device is configured to restrict a power output via the interface to a predetermined power level if the voltage monitoring device detects a drop of a supply voltage of the computer system below a first threshold value, and the signaling circuit is configured to signalize the restriction of the power output to a peripheral device.

Abstract: A Power-over-Ethernet terminal includes a plurality of components including at least one network communications port, a first plug connector electrically coupled with the network communications port, a first isolating transformer configured for the decoupling of signals, the first isolating transformer electrically coupled with the first plug connector, and a network communications unit electrically couplable with the first isolating transformer, wherein the first plug connector is configured to be selectively connected to at least one bridging element or an add-on board, such that when the at least one bridging element is connected to the first plug connector, a direct electric connection between the communications port and the first isolating transformer is established, and when the add-on board is connected to the first plug connector, an indirect electric connection between the network communications port and the network communications unit via a second isolating transformer arranged on the add-on board i

Abstract: A computer system including a power supply unit that generates at least one DC supply voltage (Vcc, Vaux) based on an AC supply voltage (VAC), and a system board electrically connected to the power supply unit, the system board comprising a sequencing microcontroller that selectively activates further components of the system board, the further components comprising a chipset, wherein the sequencing microcontroller monitors the state of at least one control signal of the power supply unit and/or the system board to detect a shutdown and a successful reboot of the system board and, after a shutdown of the system board is detected, signals a reboot command to at least the chipset at predetermined intervals until a successful reboot of the system board is detected.

Abstract: An energy supply assembly includes a supply input that provides a first voltage VIN with a maximum output current; a first voltage converter connected to the supply input to convert the first voltage VIN into a second voltage; an intermediate storage element connected to the first voltage converter to temporarily store electric energy of the second voltage; at least one first supply output connected to the supply input to provide the first voltage VOUT1; at least one second supply output connected to the intermediate storage element to provide a further supply voltage VOUT2; a measuring device to measure a current received via the supply input and/or a current output via the first supply output; and a control circuit that actuates the first voltage converter, wherein the control circuit is configured to actuate the first voltage converter on the basis of the measured current such that the current output via the at least one first supply output and the current received by the first voltage converter together d

Abstract: A computer system that includes a power supply unit that generates at least one secondary supply voltage (Vcc) and an auxiliary voltage (Vaux) based on an AC supply voltage (VAC), and a system board electrically connected to the power supply unit, the system board comprising a sequencing microcontroller that selectively activates further components of the system board, the further components comprising a chipset, wherein the sequencing microcontroller is configured to monitor the state of at least one control signal of the power supply unit and/or the system board to detect a failure of the AC supply voltage (VAC) and signal the failure of the AC supply voltage (VAC) to at least the chipset.

Abstract: A sensor device for a computer system has a transceiver unit and a data processing device connected to the transceiver unit, wherein the data processing device is configured to predefine emission of signals at measuring intervals for the transceiver unit; detect, on the basis of received, reflected signals, signal ranges assignable to objects; define a deviation in intensities of the received signal ranges over a plurality of measuring intervals for associated, detected signal ranges; and decide, on the basis of the defined deviation, whether a change has taken place in the object assigned to the respectively detected signal range.

Abstract: A computer system including a power supply unit that generates at least one DC supply voltage (Vcc, Vaux) based on an AC supply voltage (VAC), and a system board electrically connected to the power supply unit, the system board comprising a sequencing microcontroller that selectively activates further components of the system board, the further components comprising a chipset, wherein the sequencing microcontroller monitors the state of at least one control signal of the power supply unit and/or the system board to detect a shutdown and a successful reboot of the system board and, after a shutdown of the system board is detected, signals a reboot command to at least the chipset at predetermined intervals until a successful reboot of the system board is detected.

Abstract: A computer system that includes a power supply unit that generates at least one secondary supply voltage (Vcc) and an auxiliary voltage (Vaux) based on an AC supply voltage (VAC), and a system board electrically connected to the power supply unit, the system board comprising a sequencing microcontroller that selectively activates further components of the system board, the further components comprising a chipset, wherein the sequencing microcontroller is configured to monitor the state of at least one control signal of the power supply unit and/or the system board to detect a failure of the AC supply voltage (VAC) and signal the failure of the AC supply voltage (VAC) to at least the chipset.

Abstract: An interface monitoring apparatus for an interface port for connecting a peripheral device to an interface chip by at least one first data line includes a capacitive element arranged between the interface chip and the interface port and which capacitively couples the first data line to the interface chip, a first monitoring circuit coupled to the first data line at the interface port and which monitors at least one device-end termination of the first data line and provides a first control signal in the event of it being identified that a termination for the first data line is not present, and a first deactivation circuit that permanently stops data traffic via the first data line of the interface port until the interface monitoring apparatus is reset when the first control signal has been provided by the first monitoring circuit.

Abstract: A power supply assembly for a terminal having Ethernet energy supply, includes a split device with an Ethernet energy supply connection (A1) that connects to an Ethernet cable which is set up to supply energy and with an output to provide a first DC voltage (U1), a logic unit coupled to the split device, a DC/DC converter coupled to the logic unit and connected to the output of the split device in a switchable manner, and a voltage (U) that supplies the terminal being provided at an output of the DC/DC converter under control of the logic unit.