Title :
A Wide Range Charge-Balancing Circuit using Floating-Gate Transistors
Author :
Jingzhen Hu ; Gordon, C.
Author_Institution :
North Carolina State Univ., Raleigh
Abstract :
A CMOS circuit has been designed to produce charge-balanced biphasic current pulses for electrical stimulation of neurons. The circuit uses synaptic current source to generate discharging current pulses for stimulating current with amplitude ranging from 100 pA to 110 nA and period ranging from 0.2 s to Is. The amplitude and duration of the discharging current is controlled using programmable floating-gate transistors. The circuit has high stimulation efficiency and can be used in various neural microstimulators.
Keywords :
CMOS integrated circuits; bioelectric potentials; neuromuscular stimulation; CMOS circuit; charge-balancing circuit; current 100 pA to 110 nA; discharging current pulses; floating-gate transistor; synaptic current source; time 0.2 s to 1 s; Electrical stimulation; Electrochemical processes; Electrodes; Extracellular; Nerve fibers; Nerve tissues; Neurons; Pulse circuits; Pulse generation; Tissue damage; Amplifiers, Electronic; Animals; Computer-Aided Design; Electric Stimulation; Equipment Design; Equipment Failure Analysis; Humans; Miniaturization; Neurons; Static Electricity; Transistors, Electronic;
Conference_Titel :
Engineering in Medicine and Biology Society, 2007. EMBS 2007. 29th Annual International Conference of the IEEE
Conference_Location :
Lyon
Print_ISBN :
978-1-4244-0787-3
DOI :
10.1109/IEMBS.2007.4353639
