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Ultrasonic Power/Data Telemetry and Neural Stimulator With OOK-PM Signaling

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9 Author(s)
Ye-Sing Luo ; Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan ; Jiun-Ru Wang ; Wei-Jen Huang ; Je-Yu Tsai
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An ultrasonic power/data telemetry and a neural stimulator are presented. An on-off keying with pulse modulation is adopted for ultrasonic signal transmission. The ultrasonic power is used to charge a battery. The ultrasonic data are used for neural stimulation, and an animal study is also demonstrated. The range of the stimulation current is 0-640 μA. The frequency of the stimulation current pulse is from 60 to 265 Hz. This ultrasonic power/data telemetry with a neural stimulator is fabricated in a 0.35- μm CMOS technology. It occupies the area of 4.4 mm2. The total power dissipation is 2 mW with a stimulation current of 140 μA and a stimulation frequency of 265 Hz.

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Circuits and Systems II: Express Briefs, IEEE Transactions on  (Volume:60 ,  Issue: 12 )