JSTS:Journal of Semiconductor Technology and Science

The Institute of Electronics and Information Engineers (대한전자공학회)
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Implementation of Excitatory CMOS Neuron Oscillator for Robot Motion Control Unit

  • Lu, Jing (Department of Electrical and Computer Engineering, Northeastern University) ;
  • Yang, Jing (Department of Electrical and Computer Engineering, Northeastern University) ;
  • Kim, Yong-Bin (Department of Electrical and Computer Engineering, Northeastern University) ;
  • Ayers, Joseph (Department of Biology and Marine Science Center, Northeastern University) ;
  • Kim, Kyung Ki (Department of Electronic and Electrical Engineering, Daegu University)
  • Received : 2014.02.01
  • Accepted : 2014.05.08
  • Published : 2014.08.30
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Abstract

This paper presents an excitatory CMOS neuron oscillator circuit design, which can synchronize two neuron-bursting patterns. The excitatory CMOS neuron oscillator is composed of CMOS neurons and CMOS excitatory synapses. And the neurons and synapses are connected into a close loop. The CMOS neuron is based on the Hindmarsh-Rose (HR) neuron model and excitatory synapse is based on the chemical synapse model. In order to fabricate using a 0.18 um CMOS standard process technology with 1.8V compatible transistors, both time and amplitude scaling of HR neuron model is adopted. This full-chip integration minimizes the power consumption and circuit size, which is ideal for motion control unit of the proposed bio-mimetic micro-robot. The experimental results demonstrate that the proposed excitatory CMOS neuron oscillator performs the expected waveforms with scaled time and amplitude. The active silicon area of the fabricated chip is $1.1mm^2$ including I/O pads.

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