A Programmable Analog Device Based Emulation Circuit Design for Excitatory and Inhibitory Neurons

2021 ◽  
Author(s):  
Nimet Korkmaz
Keyword(s):  
Circuit Design ◽  
Inhibitory Neurons ◽  
Analog Device ◽  
Programmable Analog

scholarly journals Programmable ANalog Device Array (PANDA): A Methodology for Transistor-Level Analog Emulation

2013 ◽  
Vol 60 (6) ◽  
pp. 1369-1380 ◽  
Author(s):  
Jounghyuk Suh ◽  
Naveen Suda ◽  
Cheng Xu ◽  
Nagib Hakim ◽  
Yu Cao ◽  
...  
Keyword(s):  
Analog Device ◽  
Programmable Analog ◽  
Analog Emulation

scholarly journals Floating-Gate MOS Transistor with Dynamic Biasing as a Radiation Sensor

Sensors ◽  
2020 ◽  
Vol 20 (11) ◽  
pp. 3329
Author(s):  
Stefan Ilić ◽  
Aleksandar Jevtić ◽  
Srboljub Stanković ◽  
Goran Ristić
Keyword(s):  
Dose Range ◽  
Energy Band Diagram ◽  
Analog Device ◽  
Mos Transistor ◽  
Programmable Analog ◽  
Radiation Sensor ◽  
Dynamic Biasing ◽  
First Time ◽  
Dynamic Bias ◽  
Higher Sensitivity

This paper describes the possibility of using an Electrically Programmable Analog Device (EPAD) as a gamma radiation sensor. Zero-biased EPAD has the lowest fading and the highest sensitivity in the 300 Gy dose range. Dynamic bias of the control gate during irradiation was presented for the first time; this method achieved higher sensitivity compared to static-biased EPADs and better linear dependence. Due to the degradation of the transfer characteristics of EPAD during irradiation, a function of the safe operation area has been found that determines the maximum voltage at the control gate for the desired dose, which will not lead to degradation of the transistor. Using an energy band diagram, it was explained why the zero-biased EPAD has higher sensitivity than the static-biased EPAD.

The research and applications of programmable analog device

2005 ◽  
Author(s):  
Xiaohui Yang ◽  
Qiudi Zhao ◽  
Yongjian Yang
Keyword(s):  
Analog Device ◽  
Programmable Analog

scholarly journals Competition Through Selective Inhibitory Synchrony

2012 ◽  
Vol 24 (8) ◽  
pp. 2033-2052 ◽  
Author(s):  
Ueli Rutishauser ◽  
Jean-Jacques Slotine ◽  
Rodney J. Douglas
Keyword(s):  
Circuit Design ◽  
Small Volume ◽  
Inhibitory Neuron ◽  
Inhibitory Neurons ◽  
Simple Modification ◽  
Dendritic Trees ◽  
Control Gain ◽  
Inhibitory Feedback ◽  
Signal Normalization ◽  
Winner Take All

Models of cortical neuronal circuits commonly depend on inhibitory feedback to control gain, provide signal normalization, and selectively amplify signals using winner-take-all (WTA) dynamics. Such models generally assume that excitatory and inhibitory neurons are able to interact easily because their axons and dendrites are colocalized in the same small volume. However, quantitative neuroanatomical studies of the dimensions of axonal and dendritic trees of neurons in the neocortex show that this colocalization assumption is not valid. In this letter, we describe a simple modification to the WTA circuit design that permits the effects of distributed inhibitory neurons to be coupled through synchronization, and so allows a single WTA to be distributed widely in cortical space, well beyond the arborization of any single inhibitory neuron and even across different cortical areas. We prove by nonlinear contraction analysis and demonstrate by simulation that distributed WTA subsystems combined by such inhibitory synchrony are inherently stable. We show analytically that synchronization is substantially faster than winner selection. This circuit mechanism allows networks of independent WTAs to fully or partially compete with other.

MICROCONTROLLER BASED LIGHT CONTROL

2005 ◽  
Vol 15 (02) ◽  
pp. 319-324 ◽  
Author(s):  
MOHAMMED RAFIQ UDDIN ◽  
GAZI MAEEN -UR- RASHID ◽  
MD. SHAHIDUL ISLAM
Keyword(s):  
Control System ◽  
Circuit Design ◽  
Integrated Circuit ◽  
Data Stream ◽  
Microelectronic Device ◽  
Digital Form ◽  
Integrated Circuit Design ◽  
Analog Device ◽  
Analog To Digital ◽  
Device Processing

A microcontroller-based control system is a direct outgrowth of the extensive advances in the Integrated Circuit design and microelectronic device processing technology. This has led to the development of new forms of technologies. This paper presents a technique of microcontroller based control system for controlling the lights of a room. Using the technique, according to the intensity of the sunlight in a room, the states of light of that room will change. Therefore we need to collect data or information from the environment using light sensors to control lights. The microcontroller collects the information from the atmosphere and changes the state of different lights. The analog data collected by the sensors are converted to digital form by an Analog to Digital Converter (ADC) and then fed to the microcontroller. The output data stream of the microcontroller is in digital form by which analog device lights will be controlled.

Design and Implementation Based on ADXL213 of the Digital Inclinometer

2013 ◽  
Vol 300-301 ◽  
pp. 400-406
Author(s):  
Hong Ping Bao ◽  
Yue Xiang Hu ◽  
Ming Lv ◽  
Jie Zhang
Keyword(s):  
Circuit Design ◽  
Low Cost ◽  
Measurement Precision ◽  
Analog Device ◽  
Factors Affecting ◽  
Digital Inclinometer ◽  
High Measurement ◽  
Tilt Sensor ◽  
Design Software ◽  
Hardware Circuit

This paper used the ADXL213 dual-axis tilt sensor produced by Analog Device and NXP company's LPC1114/301 series microcontroller to make a digital inclinometer. The inclinometer has the advantages of reliable work and high measurement precision as well as the advantage of low cost. The paper mainly discussed the system hardware circuit design, software flow and the factors affecting the accuracy of the analysis, also proposed and implemented feasible compensation approaches, designed and manufactured a digital inclinometer in kind.

UNIVERSAL PROGRAMMABLE CHAOS GENERATOR: DESIGN AND IMPLEMENTATION ISSUES

2010 ◽  
Vol 20 (02) ◽  
pp. 419-435 ◽  
Author(s):  
RECAI KILIC
Keyword(s):  
Real Time ◽  
Chaotic Systems ◽  
Analog Circuit ◽  
Loop Model ◽  
Analog Device ◽  
Design And Implementation ◽  
Chaos Generator ◽  
Programmable Analog ◽  
Field Programmable ◽  
Programmable Device

Chaos generators are generally designed and implemented by using analog circuit design techniques. Analog implementations require a variety of circuitry that comprises different passive and active electronic components like individual op-amps, comparators, analog multipliers, trigonometric function generators. Anyone who wants to experimentally investigate different structurally chaotic systems has to provide a significant amount of circuit hardware. This process may be hard and time consuming. At this stage, the question to be asked: Is there a unique analog component for implementing a universal analog chaos generator which is capable of generating the chaotic signals of nearly all analog-based chaotic systems. Fortunately, we can now answer this question positively. This analog device is FPAA (Field-Programmable Analog Array). FPAA is the analog equivalent of the FPGA (Field-Programmable Gate Array) used as programmable device in digital signal processing. FPAA is a programmable device for implementing a rich variety of systems including analog functions via dynamic reconfiguration. FPAA can be configured in real time which allows the designers to modify the design or make completely new design in real time. In this paper, we aim to show how FPAA device can be used as universal device for design and implementation of programmable analog chaos generators. For this purpose, we will introduce three FPAA-based design examples: autonomous Chua's circuit, nonautonomous MLC (Murali–Lakshmanan–Chua) circuit and a chaotic system based on a PLL (Phase Locked Loop) model.

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