Abstract: In a sensor arrangement (1) for measuring the temperature of a surface, in particular of a pane (2), comprising a temperature sensor (3) that is disposed on a circuit board (4) and positioned at a front end of the circuit board (4) in the direct vicinity of the surface, a flexible heat conducting element (7) is provided between the surface and the circuit board (4).

Abstract: A circuit arrangement (1) for the regulation of a current (IL) through a load (RL) comprises: a resistance (RS), through which a load current (IL) flows and across which a voltage (VS) drops, which serves as a control variable (X) for the regulation of the load current (IL), a tapping point (P) for a reference voltage (Vref), which serves as a command variable (W) for the regulation of the load current (IL), and a differential amplifier for the amplification of the control deviation (W?X) between command variable (W) and control variable (X).

Abstract: The invention to an electronic control system, controlled by a pulse width-modulated signal (SG) related to earth, for regulating the voltage (Umot) across a high-side load (M), in particular a fan control unit for motor vehicles. The circuit part that converts the pulse width-modulated signal (SG) into the reference input variable (U?) needed for the regulation uses the positive potential of the supply voltage (V2) as reference potential, so that the reference input variable (U?) is likewise related to the positive potential of the supply voltage and the control signal (SG) is converted by means of a Zener diode (D1) and by means of a resistor (R5) connected parallel to the Zener diode (D1) into a control signal related to the positive supply potential and is further converted with a low pass filter (R7, C1) into a linear control signal, which serves as input reference variable (U?).

Abstract: In a sensor arrangement for measuring the temperature of a surface with a temperature sensor provided on a circuit substrate, which is attached on a front side of a tongue-shaped projection of said circuit substrates and can be positioned in the direct proximity to said surface spaced apart from said circuit substrate, wherein a flexible heat conductive element surrounding said tongue-shaped projection in the region of said temperature sensor with a heat conductive cap or heat conductive foil is attached for the contacting of said surface.

Abstract: A sensor arrangement comprises a dew point sensor for measuring the dew point characteristic in a room, and a temperature sensor for measuring the temperature characteristic on a wall surface of the room, means being provided for evaluating and/or storing the measured dew point characteristic and the measured wall surface temperature characteristic.

Abstract: The invention relates to an electronic control device for regulating the voltage across a high-side load, especially for regulating a fan in a motor vehicle, with a control voltage (V1) which is referenced to system ground and which is mirrored to the positive high-side supply voltage, wherein the control voltage (V1) is supplied to the base of a first transistor (Q1) operated in common-emitter connection, which transistor (Q1) has, in the emitter circuit, a first resistor (R1) and, in the collector circuit, a second resistor (R2) and, in series with the latter, the base-emitter diode of a second transistor (Q2). Compensation for temperature effects of the base-emitter voltage of the first transistor is performed by the base-emitter path of a second transistor of the same conductivity type in series with the first transistor.

Abstract: The invention relates to an electronic control system for controlling a voltage across a load, in particular across a fan motor of a motor vehicle, as a function of a control signal, comprising: a setting transistor, a transistor, which activates the control channel of the setting transistor, as well as two resistors, which form a voltage divider via which the voltage across the load is fed to the emitter of the transistor, wherein the control system is designed, in the absence of the control signal, to block the control channels of all the transistors of the control system for limiting the current through all the resistors of the control system, such that, in the absence of the control signal, the control system has a quiescent current consumption in the off-state current range of the transistors.

Abstract: The invention concerns an electronic module for a motor vehicle, in particular a fan regulator (4?) with a control input (S) for a signal, in particular a pulse width modulated signal, transmitted via a signal line (3). The electronic module is designed for the generation of an essentially constant potential (Ubias, Ubias?UBE) at the control input (S), which preferably is designed as a current-controlled, low resistance control input. The invention also concerns an arrangement (1?) for the transmission of a preferably pulse width modulated signal with: a control device (2?) for the generation of the signal, a signal line for the transmission of the signal, and an electronic module as described above.

Abstract: A sensor configuration (1) for measuring the temperature of a surface, in particular of a screen (2), comprises a temperature sensor (3) which is disposed on a circuit board (4) and is positioned in the area of a front face (4?) of the circuit board (4) in the vicinity of the surface to be measured, and a further circuit board (6). The circuit boards (4) and (6) are connected by means of at least two connecting elements (5), at least one of which is designed in a resilient fashion.

Abstract: A sensor unit comprises a mounting base (1) on which an air moisture sensor (3) and an air temperature sensor (4) are disposed. The air moisture sensor (3) is disposed over a bore (5) of the mounting base and covers the bore (5) at least partially. An intensive thermal coupling between the air moisture sensor (3), air temperature sensor (4) and air mixture to be analysed is produced.