호지킨-헉슬리 모델을 위한 시냅스 기능을 지닌 신경세포 체인의 하드웨어 구현 = Hardware implementation of a pulse-type neuron chain with a synapse function for hodgkin-huxley model

다국어 초록 (Multilingual Abstract)

Integrated circuit of a new neuron chain with a synapse function for Hodgkin-Huxley model which is a good electrical model about a real biological neuron is implemented in a 0.5 μm 1 poly 2 metal CMOS technology. Pulse type neuron chain consist of series connected current controlled single neurons through synapses. For the realization of the single neuron, a pair of voltage mode oscillators using operational transconductance amplifiers and capacitors is used. The synapse block which is a connection element between neurons consist of a voltage-current conversion circuit using current
mirror. SPICE simulation results of the proposed circuit show 160 mV amplitude pulse output and propagation of the signal through synapses. Measurements of the fabricated pulse type neuron chip in condition of ±2.5 V power supply are shown and compared with the simulated results.

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