Abstract: A device for protecting electronic components against overvoltages of a supply voltage is provided, which device includes at least one semiconductor transistor which is switchable by a trigger circuit when a predetermined overvoltage value is reached, thereby converting electrical energy to thermal energy.

Abstract: Disclosed in a power semiconductor module which includes a stack of carrier substrates, disposed one above the other in multiple layers and provided with at least one conductor track on at least one main surface, in which at least one electronic semiconductor component is disposed between two adjacent carrier substrates of the stack and is contacted electrically and heat-conductively to at least one conductor track of a carrier substrate disposed in the stack above the semiconductor component and to at least one further conductor track of a carrier substrate disposed in the stack below the semiconductor component. To both improve heat output and provide a compact design, the two outer carrier substrates of the stack are embodied as one upper and one lower housing wall of a closed housing part surrounding the at least one semiconductor component, and the interstices between the stacked carrier substrates are tightly closed by an encompassing wall secured to the carrier substrates.

Abstract: A three-phase bridge rectifier system is proposed, having three rectifier paths, in which two rectifier elements at a time are in series, each rectifier path between the rectifier elements being connectible to one of three leads of a three-phase current terminal; the three cathode terminals of the rectifier elements lying opposite the three-phase current connection are connected to an positive pole, and the three anode terminals of the rectifier elements lying opposite the three-phase current connection are connected to a negative pole; at least three of the rectifier elements being formed by two-pole semiconductor rectifiers having at least two series-connected p-n junctions. The system is used for making available a volt motor vehicle electrical system having assured reliable voltage limitation.

Abstract: A device for protecting electronic components against overvoltages of a supply voltage is provided, which device includes at least one semiconductor transistor which is switchable by a trigger circuit when a predetermined overvoltage value is reached, thereby converting electrical energy to thermal energy.