文档介绍：第卷第期电子器件
34 3 Vol. 34摇 No. 3
年月
2011 6 Chinese Journal of Electron Devices June 2011
A Design of Pulse Coded CMOS Neuron Circuit*
XIONG Ying,HAN Weihua*,ZHANG Yanbo,YANG Fuhua
(Engineering Research Center for Semiconductor Integrated Technology,Institute of Semiconductors,Chinese Academy of Science,Beijing ,China)
100083
Abstract: ,
According to the electrochemical characteristics of biological neurons this paper presents a pact
pulse coded CMOS neuron circuit based on I&F model to imitate a continuous pulse steam generated by neuron
,
cell. We show that the model has been simplified greatly it characterizes many aspects of real neurons. In the case
,
that the fabrication parameters of transistors cannot adjusted the circuit construction and coupled weights can be
,
controlled flexibly by the input signals then the circuit realizes the pulse code modulation of the input signals. The
results of HSPICE simulation show that this circuit can realize the weight identification of the binary square鄄wave
input signal according to the frequency of output pulse stream. This new pulse coded CMOS neuron circuit would
,
have great application prospects in the information transmission the construction of image recognition work
and signal modulation.
Key words: ; ; ;
pulse coded neuron HSPICE adjustable frequency
: 1295;1230J摇摇摇摇 doi: 10. 3969 / j. issn. 1