教師資料查詢 | 類別: 期刊論文 | 教師: 施鴻源 Shih, Horng-yuan (瀏覽個人網頁)

標題:A charge accumulation-free voltagecontrolled functional electrical stimulator with bi-phasic sinusoidal stimulation
學年107
學期2
出版(發表)日期2019/02/09
作品名稱A charge accumulation-free voltagecontrolled functional electrical stimulator with bi-phasic sinusoidal stimulation
作品名稱(其他語言)
著者Wei-Hsien Chen; Chia-Hung Chang; Horng-Yuan Shih; Tzai-Wen Chiu; Chien-Nan Kuo
單位
出版者
著錄名稱、卷期、頁數Analog Integrated Circuits and Signal Processing 101, p.331–339
摘要This paper presents a charge accumulation-free voltage-controlled (VC) bi-phasic sinusoidal functional electrical stimulator (FES) for bioelectronic application. Traditionally, constant current (CC) pulse-shaped FESs with active or passive charge balancers are used to compensate for accumulated charges arise from process, voltage and temperature (PVT) variation as a result of long-term stimulation. Unlike the CC pulse-shaped FES, the VC sinusoidal-shaped FES is adopted here to avoid charge accumulation over time. The charge balancer is not required, substantially reducing system complexity and the chip area of the FES. To demonstrate the feasibility of concept, in this paper, four channels of VC bi-phasic sinusoidal-shaped FESs are integrated with the bio-potential recording circuit to compare with four channels of CC bi-phasic pulse-shaped FESs that are integrated with the same neural recording system for comparison. Measurements indicate an absence of charge accumulation as a result of the VC FESs. In addition, here we adopt the sinusoidal stimulation to reduce transient effects on tissue in comparison to a pulse-shaped method. The bio-potential activities of a cockroach leg that is stimulated for 50 s by the proposed bi-phasic sinusoidal stimulation are recorded. The measured bio-potential activities of a cockroach leg show that no stimulation-evoked leg movement occurs under stimulation by the sinusoidal waveform.
關鍵字Bioelectronics;Charge accumulation-free;Voltage-controlled;Functional electrical stimulator;Bi-phasic;Sinusoidal
語言英文(美國)
ISSN0925-1030
期刊性質國外
收錄於SCI;EI;
產學合作
通訊作者
審稿制度
國別美國
公開徵稿
出版型式,電子版
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