Programmable multichannel electrophysiological stimulator based on MCU and CPLD platform.
- Author:
Yi ZHENG
1
;
Xiao-Mei WU
;
Zu-Xiang FANG
Author Information
1. Dept. of Electronic Engineering, Fudan University, Shanghai 200433.
- Publication Type:Journal Article
- MeSH:
Electric Stimulation;
instrumentation;
methods;
Electric Stimulation Therapy;
instrumentation;
Electrodes, Implanted;
Electrophysiology;
instrumentation;
methods
- From:
Chinese Journal of Medical Instrumentation
2008;32(1):32-39
- CountryChina
- Language:Chinese
-
Abstract:
According to the instruction of the operator, the designed programmable multichannel stimulator will deliver stimuli with an assigned amplitude and a proper width to the electrode-array in various modes. Each stimulation time is controlled by the internal timer of the MCU, while the stimulated electrodes' spatial parameter is controlled by the CPLD. Having abandoned conventional isolation using the transformer, we have adapted optical coupling and stable float ground connection to achieve the safety standard required by physiological measurements.
