Power modules with additional low inductive current path
Parasitic inductances are a major problem with power modules, in particular in fast switching applications.
Parasitic inductances are a major problem with power modules, in particular in fast switching applications. The parasitic inductance of the component interconnections causes an overvoltage condition and increases the switch-off losses in the semiconductor. Many initiatives have been investigated to reduce the parasitic inductance in power modules utilizing a complex mechanical construction of overlapping internal bus bars forming the dc path.
The first results of the new idea to separate the current paths into a static low resistive screw contact and in a transient low inductive PCB-based connection are promising. The limit for reduction of stray inductance is not yet reached. The new solution is a new milestone for low inductive high power module technology. The 2nH target turns from an imaginary target into a realistic one and it opens the field for new fast high power module topologies.
Vincotech’s article about “Power Modules with Additional Low Inductive Current Path” outlines a concept using today’s standard power module construction but providing an additional ultra low inductive path for the transient current.
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Annual Salary Survey
Before the calendar turned, 2016 already had the makings of a pivotal year for manufacturing, and for the world.
There were the big events for the year, including the United States as Partner Country at Hannover Messe in April and the 2016 International Manufacturing Technology Show in Chicago in September. There's also the matter of the U.S. presidential elections in November, which promise to shape policy in manufacturing for years to come.
But the year started with global economic turmoil, as a slowdown in Chinese manufacturing triggered a worldwide stock hiccup that sent values plummeting. The continued plunge in world oil prices has resulted in a slowdown in exploration and, by extension, the manufacture of exploration equipment.
Read more: 2015 Salary Survey