Magnetic field strength regulator for implant

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United States of America Patent

PATENT NO 5562714
SERIAL NO

08383040

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An efficient low cost means for regulating the output level of a magnetic field transmitter. A feedback coil tightly coupled to an output coil is designed to produce an output voltage just above the supply level for the output stage of the transmitter when the desired output level is achieved. The feedback sense coil tightly coupled to an output coil is designed to produce an output voltage just above a regulated power supply level for the output stage of the transmitting antenna until a desired output level is achieved. The feedback coil is diode coupled to the regulated power supply lines of the transmitter. When the output level increases above the regulation level the diodes begin to conduct returning energy to the supply and preventing further increase of the transmitting antenna signal.

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Patent Owner(s)

Patent OwnerAddress
MEDTRONIC INC710 MEDTRONIC PARKWAY MINNEAPOLIS MN 55432

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Grevious, John J Minneapolis, MN 22 2597

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