Name
Abstract | ||
|---|---|---|
Charge-mode stimulation (ChgMS) is a relatively new method being explored in the field of electrical neural stimulation. One of the key challenges in such a system is to overcome charge sharing between the storage capacitor and the double layer capacitor in the Electrode-Electrolyte-Interface (EEI). In this work, this issue is overcome by using a second-generation negative current conveyor (CCII-) with a low current tracking error. The level of charge sharing in the circuit is expressed by a new figure of merit (charge delivery efficiency) introduced in this paper. The proposed system has a maximum power efficiency of 76.6% and a total power consumption of 270 mu W per electrode for a target charge stimulus of 0.9 nC. Crucially, the system achieves a minimum charge delivery efficiency of 98.22%. |
Year | DOI | Venue |
|---|---|---|
2012 | 10.1109/ISCAS.2012.6271738 | 2012 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS 2012) |
Keywords | Field | DocType |
neurophysiology,electrodes,biomedical engineering,cmos integrated circuits,recycling,power efficiency,capacitance,control systems,capacitors | Capacitor,Capacitance,Computer science,Charge sharing,Figure of merit,Electronic engineering,Decoupling capacitor,Charge amplifier,Current conveyor,Maximum power principle,Electrical engineering | Conference |
ISSN | Citations | PageRank |
0271-4302 | 0 | 0.34 |
References | Authors | |
4 | 4 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Khalid Mirza | 1 | 18 | 3.19 |
| Song Luan | 2 | 11 | 4.85 |
| Amir Eftekhar | 3 | 19 | 4.19 |
| Timothy G. Constandinou | 4 | 78 | 38.42 |