Electrical circuit for limiting switching-on current
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United States of America Patent
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May 27, 2008
Grant Date -
Apr 28, 2005
app pub date -
Aug 26, 2004
filing date -
Oct 24, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention concerns an electrical circuit for limiting the switching-on current through a load during a switching-on process, comprising an electrical component which is connected in series to the load. To ensure current limitation which is independent of the load and of the value of the supply voltage, and simultaneously to avoid switching current peaks and minimize dissipated heat, the current-limiting component is in the form of an active component which has an internal resistance, and which is controlled by a timing element in such a way that the internal resistance of the component is reduced during a switching-on process.
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