Abstract: A short circuit detection apparatus (1) for detection of an electrical short circuit current flowing in at least one monitored current path comprises an evaluation circuit (8) including at least one programmable or preprogrammed arithmetic unit (8A) adapted to perform at least one arithmetic combination operation, ACOP, on a first voltage, UR, provided by a resistive element (6) of the monitored current path and being proportional to the electrical current, I, flowing via the monitored current path and on a second voltage, UL, provided by an inductive element (7) of the monitored current path and depending on a derivative of the electrical current, dI/dt, flowing via the monitored current path to provide a combined sensor voltage, and including a comparator (8D) adapted to compare the combined sensor voltage provided by the programmable or preprogrammed arithmetic unit (8A) with a preset or an adjustable threshold voltage to generate a short circuit detection signal (SCDS) if the combined sensor voltage excee

Abstract: A load control apparatus for controlling a power supply to an electrical load connected to an output terminal includes an overcurrent protection circuit having a power switch through which the electrical load receives a load current and a sensor component in series with the power switch that is configured to generate a voltage drop corresponding to the current rise speed of a load current from an input terminal to the output terminal. The protection circuit includes a driver circuit configured to detect an overcurrent depending on the voltage drop generated by the sensor component and/or at the power switch, and to switch off the power switch upon detection of an overcurrent within a switch-off period. The overcurrent protection circuit can include a power supply control circuit having a sensor component adapted to measure a supply voltage notified to a control unit of the load control apparatus adapted to control power supplied to the load.

Abstract: A method for detection of a failure of a protective fuse used to protect an associated load against overcurrent and/or against overload, wherein the method includes the steps of: measuring an electrical current, flowing through the protective fuse to the load by means of a current sensor element, determining a thermal energy generated in the protective fuse depending on the measured electrical current, and automatically detecting a failure of the protective fuse if the determined thermal energy exceeds a predetermined threshold value and if the electrical current, measured by the current sensor element has stopped flowing through said protective fuse.

Abstract: A load protection apparatus for protecting an electrical load connected to an output terminal (3) of the load protection apparatus (1) against overcurrent, said apparatus (1) comprising: an overcurrent protection circuit (1A) having a power switch (5) through which the electrical load receives an electrical load current (IL) via the output terminal (3) and having a sensor component (4) connected in series with the power switch (5) and adapted to generate directly a voltage drop (?U4) corresponding to the current rise speed of the electrical load current (IL) flowing from an input terminal (2) of the load control apparatus (1) via the sensor component (4) and the power switch (5) to the output terminal (3) and having a driver circuit (6) adapted to detect an occurring overcurrent depending on the voltage drop (?U4) generated by the sensor component (4) and depending on a voltage drop (?U5) along the power switch (5) adapted to switch off said power switch (5) upon detection of an overcurrent within a switch

Abstract: A load control apparatus (1) for controlling a power supply to an electrical load connected to an output terminal (3) of the load control apparatus (1) comprising: an overcurrent protection circuit (1A) having a power switch (5) through which the electrical load receives an electrical load current (IL) and having a sensor component (4) connected in series with the power switch (5) and adapted to generate directly a voltage drop (?U4) corresponding to the current rise speed of the electrical load current (IL) flowing from an input terminal (2) of the load control apparatus (1) via the sensor component (4) and the power switch (5) to the output terminal (3) and having a driver circuit (6) adapted to detect an occurring overcurrent depending on the voltage drop (?U4) generated by the sensor component (4) and/or a voltage drop (?U5) along the power switch (5) and adapted to switch off said power switch (5) upon detection of an overcurrent within a switch-off period of less than one millisecond; and/or comprisi

Abstract: A motor control apparatus for controlling a power supply to an electrical motor (M) connected to an output terminal (3) of the motor control apparatus (1) comprising: an overcurrent protection circuit (1A) having a power switch (5) through which the electrical motor (M) receives an electrical load current (IL) and having a sensor component (4) connected in series with the power switch (5) and adapted to generate directly a voltage drop (?U4) corresponding to the current rise speed of the electrical load current (IL) flowing from an input terminal (2) of the motor control apparatus (1) via the sensor component (4) and the power switch (5) to the output terminal (3) and having a driver circuit (6) adapted to detect an occurring overcurrent depending on the voltage drop (?U4) generated by the sensor component (4) and/or depending on a voltage drop (?U5) along the power switch (5) and adapted to switch off said power switch (5) upon detection of an overcurrent within a switch-off period of less than one millisec

Abstract: An x-ray tube has a cathode and an anode which are arranged in a vacuum housing, with an electromagnet for deflecting the electron beam traveling from the cathode to the anode. This electromagnet is formed by a C-shaped yoke with two legs that are connected to each other by a base section surrounded by a winding. Respective pole shoes with opposing pole faces are disposed at the ends of the legs. The electron beam passes between the two pole shoes as it propagates from the cathode to the anode. Each pole face has a width which does not exceed the width of its pole shoe.

Abstract: An x-ray tube has a cathode and an anode arranged in a vacuum housing, wherein an electron beam emanating from the cathode is incident at a focal spot on the anode. An electromagnet is provided for deflecting the electron beam, this electromagnet having a U-shaped yoke with two legs connected by a base section with a winding surrounding the base section. The electron beam passes between the two legs. The yoke is formed by successively layered laminations disposed in respective planes disposed substantially perpendicularly to the propagation direction of the electron beam.

Abstract: An X-ray tube has a cathode and an anode that are arranged in a vacuum housing. For deflection of the electron beam propagating from the cathode to the anode, two electromagnets are provided, of which each having a U-shaped yoke with two arms connected with one another by a base segment, and comprises a winding surrounding the base segment. The respective end faces of the arms of the two yokes are arranged opposite one another so as to maintain an air gap. The magnetic poles positioned opposite one another have the same polarity. The electron beam proceeds through the opening limited by the two yokes.