Current sensing device
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United States of America Patent
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Mar 10, 2009
Grant Date -
Feb 7, 2008
app pub date -
Jul 12, 2007
filing date -
Aug 3, 2006
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A magnetic core is shaped in a ring having a gap and disposed to surround a conductive wire. When an electric current flows in the conductive wire, a magnetic field is generated in the gap. A sensor package includes a Hall element and a lead frame, which are embedded in a resin mold. The sensor package is disposed in the gap to produce an output signal corresponding to the magnetic field in the gap. The Hall element is positioned in the center of the gap, that is, at the position which is the same distance from the end surfaces of the magnetic core.
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