Abstract: An absorption circuit arrangement is for a traction converter of a rail vehicle. The traction converter has a first power converter, a second power converter, a DC link circuit connecting the first power converter and the second power converter with a first and a second voltage potential and a link circuit capacitance arranged in the DC link circuit. The absorption circuit arrangement is arranged in the DC link circuit and is connected in parallel with the link circuit capacitance and contains a switching arrangement having a switching unit and an inductance. Each switching unit contains two terminals, two controllable power semiconductor switches and a switching unit capacitance and is configured, dependent upon switching settings of the power semiconductor switches, to provide at least two different voltages at the terminals.

Abstract: A device (1) for salvaging a motor vehicle involved in an accident, in particular a burning motor vehicle (12), from a danger zone has an extendable telescopic cylinder (2), at the tip of which at least one catch (5) is attached so that it can be folded in such a way that the motor vehicle (12) is carried along when the device (1) is pulled back.

Abstract: A cooling device for an electrical installation, in particular, for a converter system of an electrical installation of a rail vehicle, includes a cooling path in which at least one power loss source is arranged and through which a coolant is able to flow. The cooling device includes a temperature sensor system configured to detect a failure of a mass flow of the coolant and includes at least two temperature sensors which are integrated in the cooling path in spaced-apart relationship in a transport direction of the coolant. The two temperature sensors are arranged in the transport direction of the coolant upstream of a passage of the mass flow of the coolant through a region of overlap of the cooling path with the power loss source.

Abstract: A cooking device is for cooking food on a support (e.g. in a basket) within a cooking chamber. A required cooking time is determined based only on the time-evolution of the cooking chamber temperature and a power of the heating device. A first, less accurate, estimate of the required cooking time is determined within a first period, e.g. 90 seconds, of the turning on of the heating device and a second, more accurate, estimate of the required cooking is determined later, but e.g. within five minutes of the turning on of the heating device.

Abstract: A cooking device is for cooking food on a support (e.g. in a basket) within a cooking chamber. Cooking parameters are sensed over time so that a required cooking time can be determined. An intervention made by a user to the food is sensed during cooking, such as shaking the basket. The required cooking time is then re-determined. In this way, the cooking time remains accurate both for an intervention or no intervention. This may for example enable the user to be given more accurate information about when the cooking process will be complete.

Abstract: The present application relates to a cooking apparatus (1) comprising a cooking chamber (2), a basket (3) disposed within the cooking chamber (2) to receive food (4) to be cooked, a heating element (5) disposed above the food basket (3) for heating air flowing out from the food basket (3), an air circulation system (6, 12, 13) for circulating the heated air upwards within the food basket (3) and a filter element (7) disposed between the food basket (3) and the heating element (5). The filter element (7) is spaced from the heating element (5). The filter element (7) comprises an air-permeable meshed structure for retaining particles contained in the air flowing out from the food basket (3). The food basket (3) comprises an upper opening (11), and the filter element (7) extends entirely over the upper opening (11).

Abstract: A modular power converter with wide-bandgap semiconductors, in particular SiC semiconductors. The modular power converter has at least two base units. The base units are connected together on the input side, and each base unit has an input circuit on the input side and an output circuit on the output side. The input circuit and the output circuit are each formed by the wide-bandgap semiconductors arranged in a B6-bridge circuit. An intermediate circuit capacitor is connected in parallel with the input circuit and the output circuit forming an intermediate circuit. The input circuits of the base units or a sub-quantity of the base units are arranged in a series circuit. At least one inductor is arranged between each pair of input circuits.

Abstract: A cooking device is for cooking food on a support (e.g. in a basket) within a cooking chamber. A required cooking time is determined based only on the time-evolution of the cooking chamber temperature and a power of the heating device. A first, less accurate, estimate of the required cooking time is determined within a first period, e.g. 90 seconds, of the turning on of the heating device and a second, more accurate, estimate of the required cooking is determined later, but e.g. within five minutes of the turning on of the heating device.

Abstract: The invention relates to a method and an actuation assembly (3) for actuating a MOSFET (1), in particular a MOSFET (1) based on a semiconductor with a wide band gap. According to the invention, a characteristic block is generated in which a change (?U1, ?U2, ?R1, ?R2) in at least one actuation variable (U1, U2, R1, R2) for actuating the MOSFET (1) with respect to a reference actuation value of the actuation variable (U1, U2, R1, R2) is stored on the basis of at least one operating characteristic variable (U, T) which influences the switching behavior of the MOSFET (1), said change counteracting a change in the switching behavior as a result of the at least one operating characteristic variable (U, T).

Abstract: The invention relates to a method and an actuating arrangement for controlling a MOSFET, in particular wide-bandgap MOSFET. A change of an actuating variable, which actuates the MOSFET as a function of an operating characteristic variable that influences the switching behavior of the MOSFET is stored in a characteristic block. The change counteracts a reference actuating value of the actuating variable. An actual value of the operating characteristic variable is determined during operation of the MOSFET, The actuating variable is changed from the reference actuating value as a function of the actual value commensurate with the change of the actuating variable stored in the characteristic block. The change stored in the characteristic block can include a change in the switch-on or switch-off voltage or gate resistance of the MOSFET as a function of the operating temperature or the operating voltage of the MOSFET.

Abstract: A modular power converter with wide-bandgap semiconductors, in particular SiC semiconductors. The modular power converter has at least two base units. The base units are connected together on the input side, and each base unit has an input circuit on the input side and an output circuit on the output side. The input circuit and the output circuit are each formed by the wide-bandgap semiconductors arranged in a B6-bridge circuit. An intermediate circuit capacitor is connected in parallel with the input circuit and the output circuit forming an intermediate circuit. The input circuits of the base units or a sub-quantity of the base units are arranged in a series circuit. At least one inductor is arranged between each pair of input circuits.

Abstract: A cooling device for an electrical installation, in particular, for a converter system of an electrical installation of a rail vehicle, includes a cooling path in which at least one power loss source is arranged and through which a coolant is able to flow. The cooling device includes a temperature sensor system configured to detect a failure of a mass flow of the coolant and includes at least two temperature sensors which are integrated in the cooling path in spaced-apart relationship in a transport direction of the coolant. The two temperature sensors are arranged in the transport direction of the coolant upstream of a passage of the mass flow of the coolant through a region of overlap of the cooling path with the power loss source.

Abstract: With a method and an actuation arrangement for actuating a MOSFET, in particular a wide-bandgap semiconductor MOSFET, a monitoring process is performed to determine whether the body diode of the MOSFET is electrically conducting or blocking. If the body diode is electrically conducting, the MOSFET is activated, and if the body diode is electrically blocking, the MOSFET is actuated in response to an actuation signal generated based on the drain-source voltage and the direction and intensity of the drain-source current of the MOSFET.

Abstract: A voltage supply device includes at least one intermediate circuit that has at least one intermediate circuit capacitor, at least one power converter, wherein the power converter is connected to the connections of the intermediate circuit such that the power converter can be supplied with electrical energy from the intermediate circuit capacitor, and includes at least one braking chopper that is connected to the connections of the intermediate circuit capacitor such that electrical energy from the intermediate circuit capacitor can be converted into thermal energy by the braking chopper, where the power converter is equipped with at least one semiconductor switch that is clocked at a higher rate, in particular based on SiC, while the braking chopper is equipped with at least one semiconductor switch that is clocked at a lower rate, in particular based on Si.

Abstract: An air-guide member (100) for guiding an air flow (AF) is provided for in a food preparation chamber of a cooking device that uses air flow (AF) to prepare food ingredients. The air-guide member (100) includes a plurality of air-deflecting arms (101) arranged symmetrically and extending in a horizontal plane (P) between an inner part (IP) and an outer part (OP) of the air-guide member (100). The air guide member configuration allows for directing the air flow upwards and more evenly between the outer part and the inner part of the air-guide. The food ingredients can thus receive a flow of hot air having a more uniform air pressure distribution, which results in a more even cooking of the food ingredients.

Abstract: Techniques for using factor risk models to more accurately estimate the risk or active risk of an investment portfolio are disclosed. Inherent “modeling error” in factor risk models is identified and compensated for. One or more factors are added to compensate for factors that are unspecified or unattributed in the original factor risk model and which lead to modeling error. The approach can be used with a variety of different factor risk models, and for a variety of securities. Knowledge of the risk associated with modeling error can be utilized when estimating risk or active risk using factor risk models or when constructing optimal portfolios by mean-variance optimization or other portfolio construction strategies using factor risk models.

Abstract: An air-based fryer apparatus (100) includes a shield (101) for use in a cooking apparatus (100), the cooking apparatus having a food preparation chamber (102) to receive a food support (103), a system (104) for circulating a flow of hot air inside the food preparation chamber (102) and a heating element (105) to heat at least the circulated air. The shield (101), disposed between the heating element (105) and the food support (103), comprises a plurality of inclined surfaces (112) and a plurality of apertures (111) between the inclined surfaces (112) through which the flow of hot air can pass. The inclined surfaces (112) block a direct line of sight through the apertures (111) in the shield (101) from the heating element (105) to the food support (103) to prevent air flowing from the food support (103) to the heating element (105) through the apertures without being deflected by the inclined surfaces.