Current sensing coil for cochlear implant data detection
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United States of America Patent
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Nov 24, 2009
Grant Date -
N/A
app pub date -
Aug 29, 2003
filing date -
Aug 30, 2002
priority date (Note) -
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Abstract
A detection circuit for sensing signals in an implantable cochlear stimulator is provided. The detection circuit has a primary coil winding which is part of the detected circuit. The primary coil is placed adjacent to and coupled electromagnetically to a secondary coil winding which is connected to an isolated circuit. The isolated circuit has circuit means for processing the induced current in the isolated current. Because a transformer is employed, the detection circuit draws only minimal power from the detected circuit, and the sensed output voltage can be flexibly scaled.
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