In todays trading environment, the commercial success of a vehicle is not guaranteed by good technical performance alone. Nowadays users expect that cars and vans to achieve high levels of performance for long periods of time. In other words they must be reliable and reliability of the whole depends on the reliability of the parts which, increasingly, includes complex electronic systems. Experience has shown that good overall reliability can only be achieved if the parts are able to survive abnormal operating conditions. Such conditions are, of course, outside the specified limits but are, unfortunately, inevitable. Failure, although understandable, is rarely excusable. This report will describe some of the over-stress conditions that can occur in vehicles and their effect on power semiconductor switches. It will go on to describe several methods of surviving such conditions including the use of discrete protection circuits. The report will show integrating protection into the power chip, gives devices like the Philips TOPFET and protected IGBTs, enhanced protection and introduce several other useful benefits.
The automotive environment and what it means to the power switch
Die Fahrzeugumgebung und was das für einen Leistungsschalter bedeutet
1993
8 Seiten, 7 Bilder, 1 Quelle
Aufsatz (Konferenz)
Englisch
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