Abstract: A computer-implemented method for a trusted update of control software of a vehicle based on vehicle field data. The method includes: receiving, in a central system, vehicle field data collected during operation of at least one vehicle and which are provided with at least one digital signature of the vehicle and/or of a user of the vehicle; including the received vehicle field data in a data corpus if the vehicle and/or the user was recognized as a valid sender of vehicle field data using the digital signature and processing the data corpus of the central system to generate training data for a machine learning model; training a machine learning model using the training data in a training environment and signing the trained machine learning model with a digital signature of the training environment; providing the trained machine learning model having the signature to another vehicle for a software update.

Abstract: A method is described for processing a payment transaction using a cryptocurrency wallet. The method involves the following features: an operating state profile of a vehicle is called up, the address is subjected to a plausibility check based on the operating state profile, and a release of the payment transaction is granted if the address bears up against the plausibility check.

Abstract: A power supply unit arrangement for an electronic device includes a first switching converter with a first control loop that provides a controlled output voltage (DC-out) at a node; a second switching converter with a second control loop that alternatively provides the controlled output voltage (DC-out) at the node; and an open-loop control circuit connected to the first control loop and the second control loop, wherein the open-loop control circuit, upon a changeover of the current supply from the first switching converter to the second switching converter, sets a predetermined control state of the first control loop and deactivates the first switching converter and, upon a changeover of the current supply from the second switching converter to the first switching converter, reactivates the first switching converter using the predetermined control state.

Abstract: A power supply unit for a computer system including a first converter circuit with a first control circuit that converts an input-side electrical supply voltage into at least one first output voltage, a second converter circuit with a second control circuit that converts the input-side supply voltage into at least one second output voltage, wherein an output of the first converter circuit directly electrically connects to an output of the second converter circuit, a nominal level of the at least one first output voltage is higher by a predetermined voltage difference than a corresponding nominal level of the at least one second output voltage, the power supply unit includes an additional circuit on the input side of the second converter circuit, which additional circuit controls the second control circuit such that the second converter circuit operates with a minimum output power when the first converter circuit provides the at least one first output voltage.

Abstract: A power supply unit arrangement for an electronic device includes a first switching converter with a first control loop that provides a controlled output voltage (DC-out) at a node; a second switching converter with a second control loop that alternatively provides the controlled output voltage (DC-out) at the node; and an open-loop control circuit connected to the first control loop and the second control loop, wherein the open-loop control circuit, upon a changeover of the current supply from the first switching converter to the second switching converter, sets a predetermined control state of the first control loop and deactivates the first switching converter and, upon a changeover of the current supply from the second switching converter to the first switching converter, reactivates the first switching converter using the predetermined control state.

Abstract: In a method for safely parking a vehicle, it is checked whether an emergency situation is present, and the vehicle is driven by the driver assistance system to a road shoulder upon recognition of an emergency situation. In controlling the driving operation, information is requested from an external database and taken into account by the driver assistance system.

Abstract: A closed-loop control circuit for an auxiliary power supply unit includes a control loop for the closed-loop control of a voltage transformer of the auxiliary power supply unit via a controlled variable to produce a setpoint voltage, wherein the control loop includes an additional circuit that limits a change in the controlled variable in the event of provision of an external voltage of a main power supply unit at a first output for emitting voltage generated by the auxiliary power supply unit when the external voltage exceeds a setpoint voltage of the auxiliary power supply unit.

Abstract: A regulating circuit that regulates rotary speed of a pulse-width modulated fan includes a measuring device that determines a period duration (TIst) of a tacho signal (TACH) of the fan, a digital regulating register that acquires a regulation value to drive the fan on the basis of a determined period duration (TIst) and a desired value (Tsoll), a digital control register that adjusts a duty ratio to drive the fan, the digital control register has a smaller register width than the digital regulating register, and a controller that updates the digital control register by evaluating a predetermined number of more significant bits of the digital regulating register.

Abstract: A switched-mode power supply unit for a computer includes at least one switching element that switches a charging current to charge a storage element, at least one secondary output circuit that provides an output voltage (Vout+), at least one controllable oscillator circuit that provides a switching clock, and at least one control circuit that determines a switch-off time for the at least one switching element, wherein, in operation of the switched-mode power supply unit, a mean oscillator clock of the oscillator circuit is controlled in dependence on a controlled variable (Vcontrol) specifying the output voltage or power of the secondary output circuit such that the mean oscillator clock rises monotonously with the output power and a switch-on time for the at least one switching element is determined in dependence on the mean oscillator clock and a random deviation.

Abstract: A power supply unit for a computer system including a first converter circuit with a first control circuit that converts an input-side electrical supply voltage into at least one first output voltage, a second converter circuit with a second control circuit that converts the input-side supply voltage into at least one second output voltage, wherein an output of the first converter circuit directly electrically connects to an output of the second converter circuit, a nominal level of the at least one first output voltage is higher by a predetermined voltage difference than a corresponding nominal level of the at least one second output voltage, the power supply unit includes an additional circuit on the input side of the second converter circuit, which additional circuit controls the second control circuit such that the second converter circuit operates with a minimum output power when the first converter circuit provides the at least one first output voltage.

Abstract: In a method for safely parking a vehicle, it is checked whether an emergency situation is present, and the vehicle is driven by the driver assistance system to a road shoulder upon recognition of an emergency situation. In controlling the driving operation, information is requested from an external database and taken into account by the driver assistance system.

Abstract: A switched-mode power supply unit includes a mains input connecting the power supply to a primary supply voltage; an input circuit including a shared electrical path connected to the mains input and including a first mains filter, a first electrical path, connected in series with the shared electrical path, including a second mains filter, a second electrical path connected in series with the shared electrical path and connected in parallel with the first electrical path, and a first switching element that opens the first electrical path; a supply output that provides a filtered primary supply voltage; a switched-mode converter coupled to the supply output that converts the filtered primary supply voltage to a secondary supply voltage; and a control circuit that selectively switches the power supply unit to a first mode of operation with a high power output or a second mode of operation with a reduced power output.

Abstract: A closed-loop control circuit for an auxiliary power supply unit includes a control loop for the closed-loop control of a voltage transformer of the auxiliary power supply unit via a controlled variable to produce a setpoint voltage, wherein the control loop includes an additional circuit that limits a change in the controlled variable in the event of provision of an external voltage of a main power supply unit at a first output for emitting voltage generated by the auxiliary power supply unit when the external voltage exceeds a setpoint voltage of the auxiliary power supply unit.

Abstract: A switched-mode power supply unit for a computer includes at least one switching element that switches a charging current to charge a storage element, at least one secondary output circuit that provides an output voltage (Vout+), at least one controllable oscillator circuit that provides a switching clock, and at least one control circuit that determines a switch-off time for the at least one switching element, wherein, in operation of the switched-mode power supply unit, a mean oscillator clock of the oscillator circuit is controlled in dependence on a controlled variable (Vcontrol) specifying the output voltage or power of the secondary output circuit such that the mean oscillator clock rises monotonously with the output power and a switch-on time for the at least one switching element is determined in dependence on the mean oscillator clock and a random deviation.

Abstract: An irrigation device includes a pipe conduit (2) which is connectable to a water source. An irrigation arm (10) is arranged at an end of the pipe conduit (2) which is away from the water source. The irrigation device also includes at least one pump (24) for delivering water from the water source to at least one sprinkler (22) formed on the irrigation arm (10). The at least one pump (24) is arranged within a connection conduit from the water source to the sprinkler (22). The connection conduit is formed by the pipe conduit (2) and the irrigation arm (10).

Abstract: A circuit arrangement with a power input and at least one power supply unit that generates a DC voltage for operating an electronic device including a power input circuit inserted between the power input and the at least one power supply unit that selectively disconnects or rectifies an AC voltage provided via the power input for the at least one power supply unit, wherein the power input circuit has at least one first semiconductor switching element that switches a first electrical load path with a current limiting element from the power input to the at least one power supply unit, and at least one second semiconductor switching element that switches a second electrical load path from the power input to the at least one power supply unit, and a power input filter, wherein the power input filter includes a first filter circuit arranged between the power input and the power input circuit and a second filter circuit arranged between the power input circuit and the at least one power supply unit.

Abstract: A regulating circuit that regulates rotary speed of a pulse-width modulated fan includes a measuring device that determines a period duration (TIst) of a tacho signal (TACH) of the fan, a digital regulating register that acquires a regulation value to drive the fan on the basis of a determined period duration (TIst) and a desired value (TSoll), a digital control register that adjusts a duty ratio to drive the fan, the digital control register having a smaller register width than the digital regulating register, and a controller that updates the digital control register by evaluating a predetermined number of more significant bits of the digital regulating register.

Abstract: A pumping system (1) comprising a pump (2) having an electrical drive motor (4) and a control unit (6) configured to control the speed of the electrical drive motor (4). The control unit (6) is configured to receive position information data (8) and/or to process position information data (8) on the basis of received data (24). The control unit (6) is adapted to control the pump (2) on the basis of the received or processed position in-formation data (8).

Abstract: A circuit arrangement includes a switching element that switches a load current, a current-limiting element connected in series to the switching element, a bistable first relay connected in parallel to the switching element and the current-limiting element, and a control circuit that switches the power-supply unit from a first operating state to a second operating state in which a load current for generating a DC voltage flows from the power grid to the power-supply unit, such that the control circuit turns on the switching element for a first time period during switching of the power-supply unit from the first to the second operating state, to turn the bistable relay on during the first time period, and to turn the switching element off at the end of the first time period.

Abstract: A line filter includes at least one X capacitor located between two supply lines and at least one discharge resistor that discharges the X capacitor, wherein the discharge resistor is arranged in series with at least one switching element, and at least one detector circuit that detects a network disconnection and closes the switching element to discharge the X capacitor via the discharge resistor when a network disconnection is recognized.