Current stimulator for recording cranial nerve signals and operation method of current stimulator
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United States of America Patent
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Nov 28, 2023
Grant Date -
Jun 29, 2023
app pub date -
Jul 26, 2022
filing date -
Dec 29, 2021
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Abstract
A current stimulator includes a first current generation circuit configured to generate a first current, injectable into a cranial nerve cell, through a current mirroring based on a plurality of transistor pairs; and a second current generation circuit, driven by a clock, configured to generate a second current smaller than the first current by controlling a charge rate based on a voltage difference between terminals of a capacitor. A first output impedance of the first current generation circuit and a second output impedance of the second current generation circuit have a magnitude greater than or equal to a predetermined ratio to a load impedance corresponding to the cranial nerve cell.
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