Dehn + Söhne Gmbh + Co Kg

Dehn Se + Co Kg

Peter Igl

Julius Maria Schrafl

Ralph Brocke

Thomas Boehm

Benjamin Moosburger

Hans Herold

Herbert Krämer

Helmut Lachner

Julius Schrafl

Markus Sellerer

The invention relates to an overvoltage protection arrangement for information and telecommunication technology, consisting of a housing with means formed on the housing base for mounting top-hat rails, overvoltage protection elements which can be found in the housing, electric connection means, and at least one circuit board as a wiring support for the overvoltage protection elements. When viewed laterally, the housing is designed approximately in the shape of a T standing on its head and has a beam-shaped main part with a protruding head part, wherein the electric connection means can be accessed and actuated via the upper face of the beam-shaped main part. A first and second circuit board are located on a respective inner face of the lateral walls of the housing in a mutually spaced manner, and the electric connection means in the form of electric connection terminals, connection sockets, and/or plugs for example are arranged in the spacing between the first and second circuit board such that first connection means can be accessed on the horizontal plane of the beam-shaped main part and second connection means can be accessed on the vertical plane of the beam-shaped main part. The flat shape of the circuit board corresponds to the T shape of the housing or approximates the shape of the housing.

Overvoltage protection arrangement for information and telecommunication technology

The invention relates to a circuit assembly for the state monitoring and logging of overvoltage protection devices or overvoltage protection systems by means of pulse current monitoring, comprising at least one passive RFID transponder having an inductively coupled voltage supply, wherein in the case of an event of the overvoltage protection device or the overvoltage protection system, the RFID transponder antenna circuit is influenced, in particular interrupted, short circuited, or detuned, so that disturbance processes can be identified. According to the invention, a coil Lis provided on a discharge line of the overvoltage protection device or the overvoltage protection system that carries pulse currents that occur, which coil Lis oriented in such a way that the field caused by pulse current passes through the coil winding surface, wherein the coil Lis connected to at least one switching device, which is connected on the antenna circuit of the RFID transponder to the inductor Lthere in order to influence the antenna circuit at least at times.

Circuit assembly for the state monitoring and logging of overvoltage protection devices or overvoltage protection systems

The invention relates to a multi-staged overvoltage protection circuit, in particular for information-technology systems, comprising at least one coarse protection element and at least one fine protection element, wherein the at least one fine protection element can be activated by a triggering device depending on a threshold. According to the invention, the applied operating voltage is led to an evaluation device, which generates a reference voltage. Also provided is an evaluation unit, firstly for checking to see whether the current operating voltage is above the reference voltage, secondly for checking to see whether the voltage excess exceeds a previously determined level, and thirdly for establishing whether the rate of change of the operating voltage is greater than another previously determined value so that a transient overvoltage exists, wherein the triggering device then receives an activation signal from the evaluation device.

Multi-stage overvoltage protection circuit, in particular for information-technology systems

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Pyrbaum, Germany

Peter Igl