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This paper presents a 16-channel closed-loop neuromodulation SoC for human seizure control. The SoC includes a 16-ch signal acquisition unit, a bio-signal processor, a 16-ch adaptive stimulator, and wireless telemetry. The signal acquisition unit achieves 3.78 NEF and shares electrodes with stimulator. The seizure detection latency is 0.76s and delivered 0.5–3mA biphasic current stimulation. The SoC...
In this paper, a 13.56 MHz CMOS near-field inductive link power supply (ILPS) that can deliver 20 mA output current for implantable medical devices (IMDs) is proposed and fabricated. In the proposed ILPS, the pair of inductive link coils is constructed in the spiral shape with a ferrite core to save space and increase efficiency. Experimental results have shown that the near-field coils can transmit...
This paper introduces the optimal design of detachable grip spring. The optimization mathematic model of cylinder helical spring is proposed according to the design method of the spring. The model is solved by using MATLAB optimization tool. And it provides the optimal program. The result of operation indicates this method is feasibility. Optimal design method and the using of MATLAB software are...
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