| IP개요 |
The investigation on biological neuron using standard CMOS processes has become continuous trend where reaction is silicon neuron with electronic synapses, large dynamic range and relatively low power consumption. This work presents a novel silicon neuron based on an OTA (operational transconductance amplifier) with a negative resistor for brain-inspired neural networks. The proposed time-variant silicon neuron consists of a coupled oscillator representing the cell body and a current-controlled negative resistor with an input summing junction. The proposed neuron circuit is analyzed and simulated using 0.18µm CMOS process. SPICE simulation results which used supply voltage of 3.3 V, showed that a neuron pulse is generated above a threshold input current of 70 ㎁ |
