Abstract: A method is described for manufacturing semiconductor components with short switching time, having a weakly doped semiconductor area in contact with a PN junction. In order to obtain an inhomogeneous impurity distribution in the axial direction of the semiconductor array, the following process steps are implemented:a) gold impurities are placed in the semiconductor array and homogeneously distributed there in a first diffusion process,b) a layer comprising a 3d transition metal affecting the charge carrier lifetime is deposited onto that surface side of the semiconductor array having a shorter distance from the weakly doped semiconductor area,c) the 3d transition metal is incorporated into the semiconductor array by a second diffusion process and is inhomogeneously distributed there, such that an impurity surplus is generated in a partial area of the weakly doped semiconductor area in the vicinity of the PN junction.

Abstract: A charging method for storage batteries, in particular for NiCd and NiH cells. In accordance with the invention, the charging operation is cyclically interrupted for the purpose of measuring the charging voltage. During these measurement intervals, the charging voltage is cyclically compared with a reference value. If the value of the actual charging voltage is greater than this reference value, the latter is increased by a certain amount to match it to the actual value of the charging voltage and then stored. By contrast, the number of measurement cycles is counted in which the value of the measured charging voltage is consecutively equal to or less than the maximum stored reference value. Finally, the charging current source is switched off or the charging current is reduced at a preset counter reading. As a result, maximum utilization of the available effective capacity together with extensive protection against overcharging is achieved.

Abstract: A semiconductor assembly with a metal frame configuration is described, having a semiconductor component (HL) on a carrier section (T) of a ground strip section (M). The ground strip segment has an extension section (V) with which it is extended beyond said carrier section and is both folded over in relation to said carrier section and of sufficient length that it covers said semiconductor component in order to shield it electromagnetically.In this assembly, the ground strip section has a multiple function. It is used not only for carrying and contacting of electrical components, but also acts at the same time as electromagnetic shielding for a semiconductor component, for example for the radiation detector of a remote control reception module.

Abstract: A method for operation of a radio-controlled clock comprising a quartz-controlled clock synchronized by a time signal receiver with a time signal via a signal processor. In a common array with an additional device, such as a computer or television set, reception of the time signal is generally largely prevented by the interference effect of the additional device. In the method in accordance with the invention, the quartz-controlled clock is therefore synchronized with the time signal solely when the additional device is no longer generating an interference field. For this purpose, a detector is provided that recognizes the operating state of the additional device and permits synchronization of the quartz-controlled clock with the time signal only when the additional device is not generating an interference field, or if so only a reduced one. Furthermore, a radio-controlled clock is described that is suitable for operation by the method in accordance with the invention.

Abstract: A method is described for determining brake coefficients, which define the relationship between the brake pressure and the brake force at a wheel or axle of a motor vehicle or of a section of a vehicle combination during the braking operation of the vehicle or vehicle combination. During the braking operation of vehicle, the wheel speed and the brake pressure are determined measurement/time intervals with differing brake pressure distribution between the wheels, axles or vehicle sections are formed, in which the equilibrium of forces between the brake force and the force of inertia of the motor vehicle is obtained.

Abstract: A circuit array, adapted to be coupled to a load and a source of a main AC voltage, for reverse phase angle control whereby a current flow in the load is limited to a defined phase angle (.alpha.) of the main AC voltage, comprising the following components for sequential control of the reverse phase angle control: a switching element, connected to the load and coupled to the source of the main AC voltage, for actuating the current flow in the load; a time determining component; and an integrated circuit.

Abstract: A circuit is described for monitoring of loads having measuring resistors in the load circuit. The circuit evaluates the measuring voltage drops obtained at the measuring resistors. The circuit comprises at least one comparator stage made up of a reference current section and a comparator section. A temperature-dependent reference current is formed in the reference current section and supplied to the comparator section, with the temperature-dependent reference current comprising a voltage-independent component and a voltage-dependent component. The comparator section comprises one or more input branches, corresponding comparator branches, and a reference branch. The comparator branch compares the reference current flowing in the reference branch with the input currents flowing in the input branches and representing a measure for the measuring voltage drops obtained at the measuring resistors and applied to the inputs of the comparator stages.

Abstract: In an electronic assembly whose components or circuit components are combined into at least two sub-assemblies or function units, one or more of the sub-assemblies or function units are disposed on a first substrate comprising a first substrate material. The first substrate is in its turn disposed with one or more further sub-assemblies or function units on a second substrate comprising a second substrate material.

Abstract: in a semiconductor array having a tetrode integrated in a semiconductor element, the tetrode comprises two field-effect transistors having a common semiconductor area forming the drain electrode of the first field-effect transistor and the source electrode of the second field-effect transistor. The semiconductor array has a three-pole array integrated in the semiconductor element and functioning as a feedback element, the input of the array is connected to the common semiconductor area of the tetrode. The output of the three-pole array is connected to the semiconductor area forming the gate electrode of the first field-effect transistor of the tetrode.

Abstract: An electronic flasher unit for one or more flashing lamps activated by flasher switches is described. The flasher unit has at least three control inputs and an integrated circuit for controlling a flashing relay with relay contacts. In addition, further switching means are provided that can be used to alter the operating state of the integrated circuit as a function of the switch settings of the flasher switches and the ignition switch.

Abstract: The invention relates to a method for manufacture of an optoelectronic coupling element having a multi-part housing, in which a first housing section is designed as a plug and a second housing section as the receptacle receiving said plug, and where at least one optoelectronic element each is mounted on a contact strip in said first and second housing sections. The method in accordance with the invention is characterized in that the first and second housing sections are initially shaped around one contact strip segment each, in that in a further process step the optoelectronic elements are mounted in cutouts in the interiors of the plug and the receptacle, and in that the plug and the receptacle are joined together after manufacture of the electrical connections of the optoelectronic elements with their respective contact strips.

Abstract: A receiver array in accordance with the reception principle of synchronous demodulation, in which a controllable oscillator array is pre-synchronized to a set value for the oscillator frequency by a digital first control circuit having a reference frequency source during a pre-synchronization phase, and a heterodyne signal derived from the oscillator frequency is then synchronized with phase locking to the received useful signal by switching the oscillator control input to an analog second control circuit.

Abstract: The invention relates to a process for producing a junction field effect transistor in which the surface layer provided for conducting the current has a reduced cross-section in the channel area. The gist of the invention is that a photoresist mask is applied to the surface layer of the first conductivity type which is initially of uniform thickness. The surface layer is removed to a residual thickness through an opening in the photoresist mask. Impurities are then implanted into the surface layer through the same opening in the aforesaid mask to produce a zone of the second or opposite conductivity type. Finally, the aforementioned mask is used as a contacting mask for the manufacture of the gate electrode.