Browsing by Author "Chen, Wei-Ling"

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Implantable Stimulator for Epileptic Seizure Suppression With Loading Impedance Adaptability
(2013-04-01)
Lin, Chun-Yu
;
Chen, Wei-Ling
;
Ker, Ming-Dou
;
電子工程學系及電子研究所
;
生醫電子轉譯研究中心
The implantable stimulator for epileptic seizure suppression with loading impedance adaptability was proposed in this work. The stimulator consisted of the high voltage generator, output driver, adaptor, and switches, can constantly provide the required 40-mu A stimulus currents, as the loading impedance varied within 10 k Omega-300 k Omega. The performances of this design have been successfully verified in silicon chip fabricated by a 0.35-mu m 3.3-V/24-V CMOS process. The power consumption of this work was only 1.1 mW-1.4 mW. The animal test results with the fabricated chip of proposed design have successfully verified in the Long-Evans rats with epileptic seizures.
Live Demonstration: Implantable Stimulator for Epileptic Seizure Suppression with Loading Impedance Adaptability
(2012)
Ker, Ming-Dou
;
Chen, Wei-Ling
;
Lin, Chun-Yu
;
電子工程學系及電子研究所
;
Department of Electronics Engineering and Institute of Electronics
Stimulus driver for epilepsy seizure suppression with adaptive loading impedance
(2011-12-01)
Ker, Ming-Dou
;
Lin, Chun-Yu
;
Chen, Wei-Ling
;
電機學院
;
College of Electrical and Computer Engineering
A stimulus driver circuit for a micro-stimulator used in an implantable device is presented in this paper. For epileptic seizure control, the target of the driver was to output 30 mu A stimulus currents when the electrode impedance varied between 20 and 200 k Omega. The driver, which consisted of the output stage, control block and adaptor, was integrated in a single chip. The averaged power consumption of the stimulus driver was 0.24-0.56 mW at 800 Hz stimulation rate. Fabricated in a 0.35 mu m 3.3 V/24 V CMOS process and applied to a closed-loop epileptic seizure monitoring and controlling system, the proposed design has been successfully verified in the experimental results of Long-Evans rats with epileptic seizures.