摘要:
An antenna (10) having an emitter element which is positioned in front of a conductive reflector (13) and has a three-dimensional cast part. The cast part is implemented as conductive and has a closed peripheral structure (11) having alternating constrictions and bulges. The peripheral structure (11) spans an imaginary surface (14) which is intersected by at least two planes of symmetry (15.1, 15.3) of the cast part. At least two fastening elements (12.1, 12.2) are provided, which extend essentially perpendicular to the imaginary surface (14) and support the peripheral structure (11) at two points which lie on one of the planes of symmetry (15.1; 15.3). At the lower ends (16), the fastening elements (12.1, 12.2) are connected to the reflector (13), the fastening elements (12.1, 12.2) also being used for electrical excitation of the emitter element.
摘要:
The invention relates to an arrangement comprising a thermo-electric generator having a hot side which absorbs heat from a heat source, a cold side which discharges heat to a heat sink, and electrical terminals for outputting electrical energy with an output voltage and an electric circuit with a maximum permissible input voltage, the inputs of which are connected to the electrical terminals of the thermo-electric generator. Such arrangements may be used, for example, in exhaust systems of motor vehicles for more efficient use of the energy. In order to provide such an arrangement, which can be connected to a heat source, in particular an exhaust system of an internal combustion engine, largely independently of the magnitude of the temperature difference between the hot and cold sides of the thermo-electric generator, it is proposed that the thermo-electric generator be configured in such a way that saturation of the output voltage occurs below the maximum permissible input voltage of the electric circuit, or when said maximum permissible input voltage is reached.
摘要:
The invention relates to a high frequency coaxial connector (1) having a first and a second connector part (2, 3). The first connector part (2) comprises an outer conductor (5) and an inner conductor (4) held relative to said outer conductor by means of an insulator (6) and disposed in an opening (11) of the insulator (6). The inner conductor (4) comprises an end piece (8) that is electrically conductively and operatively connected to a connector sleeve (10). The connector sleeve (10) is mechanically operatively connected to the insulator (6) by means of first operative connection means (12, 13), so that the connector sleeve (10) can be tilted relative to the inner conductor (4). An axial displacement can be made possible by means of the active connection to the second connector part (3).
摘要:
A power supply regulator circuit uses a feedback loop to control current through a first output transistor from a power supply input to a regulated power supply output. The first output transistor is included in an integrated circuit. In order to avoid heating of the integrated circuit in excess of an acceptable level due to permanent supply of a high current through the first transistor, current through a second output transistor in parallel with the first transistor, but outside the integrated circuit is raised when it is detected that the current through the first output transistor exceeds a threshold level. The second output transistor outside the integrated circuit serves to take over supply of a part of the power supply current from first output transistor inside integrated circuit, when long term supply of that part from first output transistor would lead to undesirable heating of the integrated circuit. During a limited time interval a first transistor current above the threshold level is acceptable. During this time interval the current through the second output transistor is raised slowly in order to avoid unpredictable stability problems and the generation of excessive power supply noise.
摘要:
A circuit arrangement for supporting and monitoring a microcontroller, which is constructed externally of the microcontroller, comprises a watchdog circuit for monitoring the microcontroller, which circuit outputs an error signal if not reset by the microcontroller within a watchdog period, and an interrupt circuit, which feeds important system messages to the microcontroller as interrupt events for processing. In order correctly to combine interrupt processing and watchdog operation, the watchdog circuit is connected to the interrupt circuit and cooperates therewith in such a way that the interrupt circuit feeds at most a predetermined number of interrupt events to the microcontroller within a watchdog period.
摘要:
A cooling appliance (1) with circulated air cooling, comprising at least one cooling chamber (2) for reception of stock (3) to be cooled, at least one channel (4) for cooling air (5) and a coldness generator (12) for generating cooling air (5), wherein the channel (4) provides a fluid-conducting connection of the coldness generator (12) with the cooling chamber (2) and opens into the cooling chamber (2) by an outlet opening (6), wherein a jet forming means (7) is provided and wherein the jet forming means (7) is formed by a nozzle element (18) and/or by a spacer (10), by which the stock (3) to be cooled is kept at a spacing from the outlet opening (6), at the outlet opening (6). A precise, uniform and energy-saving temperature conditioning of the stock (3), which is to be cooled, in the cooling chamber (2) is made possible by the invention.
摘要:
To provide a transceiver (100) comprising a transmitter (10) and a receiver (13) for transmitting and receiving signals via a bus system (11), and a transmitter control unit (12), which transceiver ensures minimal electromagnetic emission, it is proposed that a monitoring circuit (14) for monitoring the transmitted signals is assigned to the transceiver (100), which circuit provides the possibility of a stepwise adaptation of the signal edge to the desired signal shape.
摘要:
A circuit arrangement for supporting and monitoring a microcontroller, which is constructed externally of the microcontroller, comprises a watchdog circuit for monitoring the microcontroller, which circuit outputs an error signal if not reset by the microcontroller within a watchdog period, and an interrupt circuit, which feeds important system messages to the microcontroller as interrupt events for processing. In order correctly to combine interrupt processing and watchdog operation, the watchdog circuit is connected to the interrupt circuit and cooperates therewith in such a way that the interrupt circuit feeds at most a predetermined number of interrupt events to the microcontroller within a watchdog period.
摘要:
To enable a method and a base chip (200) for monitoring the operation of at least one microcontroller unit (300) that is intended for at least one application and is associated with a system (100) to bc further developed in such a way that the operation of the microcontroller unit (300), which is associated with a serial system, is monitored in such a way as to enable faulty operation, and particularly faulty operation that discharges the battery, to be reliably prevented, it is proposed that the microcontroller unit (300) has at least one non-volatile memory area (10) associated with it, the memory area (10) can be read from and/or written to by the microcontroller unit (300), and at least one set of statistics, and in particular a set of fault statistics, relating to the operation of the microcontroller unit (300), can be kept by means of the memory area (10).
摘要:
A rotating actuator includes a rotatable control shaft, a manually operated handle connected therewith, and a device for generating a haptic perception when rotating the control shaft. The haptic signal generating device is developed in the form of a mechanical detent assembly including a detent curve and at least one detent element engaging the stop curve. An activating device is allocated to the haptic signal generating device and is actively configured on the detent curve or a detent element. By selecting the activation device an interaction is created between a detent element and the detent curve in order to generate the haptic signal formed by the detent curve. The haptic signal can be enabled or disabled by activating or deactivating the activation device as the control shaft is rotated.