Circuit implementation of a fully programmable and continuously slope tunable triangular/trapezoidal membership function generator

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• 作者：Amin Khalilzadegan (1) st_a.khalilzadegan@urmia.ac.ir
  Abdollah Khoei (1)
  Khayrollah Hadidi (1)
• 关键词：APCM – ; Continuous slope programmability – ; Differential pair – ; Trapezoidal MFG – ; Triangular MFG
• 刊名：Analog Integrated Circuits and Signal Processing
• 出版年：2012
• 出版时间：June 2012
• 年：2012
• 卷：71
• 期：3
• 页码：561-570
• 全文大小：1.3 MB
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• 作者单位：1. Microelectronics Research Laboratory, Urmia University, Urmia, 57159 Iran
• 刊物类别：Engineering
• 刊物主题：Circuits and Systems
  Electronic and Computer Engineering
  Signal,Image and Speech Processing
  
• 出版者：Springer Netherlands
• ISSN：1573-1979

文摘

In this article, a fully programmable membership function generator (MFG) is proposed. This MFG is capable of generating triangular, trapezoidal as well as both S-shaped and Z-shaped membership functions simultaneously. Utilizing a differential pair as an analog switch leads to relax the design of fuzzy systems control part. This MFG has the ability of adapting itself with various fuzzy controllers which produce different control voltage ranges. Unlike the available reported literatures, this MFG uses a new analog programmable current mirror (APCM) instead of digitally programmable current mirrors to adjust the slopes of membership functions. Extensive time domain simulations have been carried out using Hspice by level 49 parameters (BSIM3v3) in standard CMOS technology to validate the effective performance of the proposed MFG.