scholarly journals A New Proposal for OFCC-based Instrumentation Amplifier

2017 ◽  
Vol 7 (1) ◽  
pp. 134 ◽  
Author(s):  
Deva Nand ◽  
Neeta Pandey
Keyword(s):  
Tracking Error ◽  
Current Conveyor ◽  
Experimental Results ◽  
Instrumentation Amplifier ◽  
Voltage Mode ◽  
Second Stage ◽  
Voltage Difference ◽  
High Impedance ◽  
Operational Floating Current Conveyor ◽  
Two Stages

This contribution puts forward a new voltage mode instrumentation amplifier (VMIA) based on operational floating current conveyor (OFCC). It presents high impedance at input terminals and provides output at low impedance making the proposal ideal for voltage mode operation. The proposed VMIA architecture has two stages - the first stage comprises of two OFCCs to sense input voltages and coverts the voltage difference to current while the second stage has single OFCC that converts the current to voltage. In addition it employs two resistors to provide gain and imposes no condition on the values of resistors.  The behavior of the proposed structure is also analyzed for OFCC non idealities namely finite transimpedance and tracking error. The proposal is verified through SPICE simulations using CMOS based schematic of OFCC. Experimental results, by bread boarding it using commercially available IC AD844, are also included.

An Outlier Detection Method Based on Fuzzy C-Means Clustering

2009 ◽  
Vol 419-420 ◽  
pp. 165-168
Author(s):  
Qiang Li ◽  
Jian Pei Zhang ◽  
Guang Sheng Feng
Keyword(s):  
Data Mining ◽  
Outlier Detection ◽  
Detection Method ◽  
Experimental Results ◽  
Data Mining Techniques ◽  
Fuzzy C Means ◽  
Second Stage ◽  
Fuzzy C Means Clustering ◽  
Fcm Clustering ◽  
Two Stages

Both fuzzy c-means (FCM) clustering and outlier detection are useful data mining techniques in real applications. In this paper, we show that the task of outlier detection could be achieved as by-product of fuzzy c-means clustering. The proposed strategy consists of two stages. The first stage consists of purely fuzzy c-means process, while the second stage identifies exceptional objects according to a novel metric based on the entropy of membership values. We provide experimental results to demonstrate the effectiveness of our technique.

scholarly journals CMOS Operational Floating Current Conveyor Circuit for Instrumentation Amplifier Application

2020 ◽  
pp. 317-323
Author(s):  
Fahmi Elsayed ◽  
◽  
Mostafa Rashdan ◽  
Mohammad Salman
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Current Conveyor ◽  
Total Power ◽  
Low Power Consumption ◽  
Instrumentation Amplifier ◽  
Fully Integrated ◽  
Total Power Consumption ◽  
High Bandwidth ◽  
Operational Floating Current Conveyor

This paper presents a fully integrated CMOS Operational Floating Current Conveyor (OFCC) circuit. The proposed circuit is designed for instrumentation amplifier circuits. The CMOS OFCC circuit is designed and simulated using Cadence in TSMC 90 m technology kit. The circuit aims at two different design goals. The first goal is to design a low power consumption circuit (LBW design) while the second is to design a high bandwidth circuit (HBW design). The total power consumption of the LBW design is 1.26 mW with 30 MHz bandwidth while the power consumption of the HBW design is 3 mW with 104.6 MHz bandwidth.

Founding Moral Reasoning on Evolutionary Psychology

ruffin_darden ◽  
2004 ◽  
Vol 4 ◽  
pp. 135-144
Author(s):  
Saras D. Sarasvathy ◽  
Keyword(s):  
Social Sciences ◽  
Moral Reasoning ◽  
Evolutionary Psychology ◽  
Social Action ◽  
Experimental Results ◽  
Stage I ◽  
Future Research ◽  
Second Stage ◽  
The Social ◽  
Two Stages

In this paper I develop a critique of the strong adaptationist view inherent in the work of Leda Cosmides and John Tooby, as presentedat the Ruffin Lectures series in 2002. My critique proceeds in two stages. In the first stage, I advance arguments as to why I find the particular adaptation story that the authors advance for their experimental results unpersuasive even when I fully accept the value of their experimental results. In the second stage, I grant them their adaptation story and critique the implications of such stories forbusiness ethics and for future research. In sum, I argue against recasting key problems in the social sciences to fit the use of toolsdeveloped in the so-called “hard” sciences. Instead, I urge that we deal with these problems on their own terms, i.e. through their basisin and dependence on deliberate social action.

Port Interchange in Voltage Mode Current Conveyor Based Filters

1997 ◽  
Vol 07 (06) ◽  
pp. 543-561 ◽  
Author(s):  
Ahmed M. Soliman
Keyword(s):  
Input Impedance ◽  
Transformation Method ◽  
Current Conveyor ◽  
Experimental Results ◽  
High Input ◽  
High Input Impedance ◽  
Pspice Simulations ◽  
Voltage Mode

A transformation method which leads to the generation of high input impedance current conveyor based filters from finite input impedance circuits is given. Applications of the transformation method are included. PSpice simulations and experimental results indicating the performance of the transformed current conveyor circuit compared with the original circuit are also given.

scholarly journals High CMRR Voltage Mode Instrumentation Amplifier Using a New CMOS Differential Difference Current Conveyor Realization

2020 ◽  
Vol 14 ◽  
Keyword(s):  
Dynamic Range ◽  
Supply Voltage ◽  
Current Source ◽  
Low Noise ◽  
Current Conveyor ◽  
Instrumentation Amplifier ◽  
Wide Bandwidth ◽  
Voltage Mode ◽  
Constant Bias ◽  
Adaptive Biasing

This paper describes a new CMOS realization of differential difference current conveyor circuit. The proposed design offers enhanced characteristics compared to DDCC circuits previously exhibited in the literature. It is characterized by a wide dynamic range with good accuracy thanks to use of adaptive biasing circuit instead of a constant bias current source as well as a wide bandwidth (560 MHz) and a low parasitic resistance at terminal X about 6.86 Ω. A voltage mode instrumentation amplifier circuit (VMIA) composed of a DDCC circuit and two active grounded resistances is shown as application. The proposed VMIA circuit is intended for high frequency applications. This configuration offers significant improvement in accuracy as compared to the state of the art. It is characterized by a controllable gain, a large dynamic range with THD less than 0.27 %, a low noise density (22 nV/Hz1/2) with a power consumption about 0.492 mW and a wide bandwidth nearly 83 MHz. All proposed circuits are simulated by TSPICE using CMOS 0.18 μm TSMC technology with ± 0.8 V supply voltage to verify the theoretical results.

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