fault diagnosis in analog circuits via symbolic analysis techniques
Advances in Analog Circuits Part 1 pdf
Ngày tải lên :
20/06/2014, 06:20
... purposes Design constraints include minimum gain-bandwidth product (GBW), minimum voltage DC gain (Av0 ), minimum phase margin (PM), minimum slew rate (SR) and the minimum and maximum input common mode ... Biasing Design of Analog Circuits Reza Hashemian Chapter New Port Modeling and Local Biasing of Analog Circuits Reza Hashemian Chapter Part 15 47 Behavioral Modeling of Mixed-Mode Integrated Circuits ... of analog circuits considering process variations and parameter degradation Chapter shows the application of interval analysis techniques for linear analog circuit’s problems When analog circuits...
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Advances in Analog Circuits Part 2 ppt
Ngày tải lên :
20/06/2014, 06:20
... substantially increased the demand for new design methodologies and techniques A major difficulty in dealing with analog circuits is the DC biasing – getting desirable operating points with quick ... nonlinearity in the biasing design This is done because being locally biased the nonlinear components can be replaced with their linear models operating at those Q-points; hence making the biasing ... This can be done by modifying their corresponding fixators without really touching any other parts in the circuit, or leaving the linearity conditions in the circuit In using fixators for port specification...
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Advances in Analog Circuits Part 3 ppt
Ngày tải lên :
20/06/2014, 06:20
... to be included in Vi ,n , rms or I i ,n , rms Vi ,n , rms = (6) I i ,n , rms = RS Rin + RS Vo ,n.rms ARin Rin + RS Vo ,n.rms ARin RS (7) Vo,n, rms Iin RS Vi, n,rms Iin Iin A A AC V in RM Vin V ... charging path, providing an RC time constant Component biasing One of the applications of H-modeling, leading to port nullification, is in biasing of nonlinear components, individually or in clusters ... to the port In other words, local biasing only shifts the port’s i-v coordinate axis to the operating point Local biasing Using Coupling Capacitors: As discussed in Section 5, coupling capacitors...
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Advances in Analog Circuits Part 4 pdf
Ngày tải lên :
20/06/2014, 06:20
... Sánchez-López, C., Martinez-Romero, E & Tan, S (2010) Symbolic analysis of analog circuits containing voltage mirrors and current mirrors, Analog Integrated Circuits and Signal Processing 65(1): 89–95 ... Press, Wiley Interscience, 2008, pp 613 – 823 84 Advances in Analog Circuits [13] R Hashemian, "Designing Analog Circuits with Reduced Biasing Power", to be published in the Proceedings of the ... fill Y: if in Table A a node is included in ROW and COL, introduce that admittance(s) in Y at position (ROW index, COL index) For each admittance in Table B, search node m in ROW and n in COL (do...
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Advances in Analog Circuits Part 5 ppt
Ngày tải lên :
20/06/2014, 06:20
... Sizing rules As shown in (Massier et al., 2008), sizing rules of the analog circuits are the constraints that must be satisfied during circuit sizing They include, for example, geometry constraints ... nonlinear circuits, where off-diagonal blocks in the Jacobian matrix are not dominant However, the performance of the BD preconditoner deteriorates as circuit nonlinearities increase In certain ... preliminary methods presented in (Pan & Graeb, 2009) and (Pan & Graeb, 2010) The content is augmented such that the sizing constraints for both 132 Advances in Analog Circuitsi fresh and aged circuits...
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Advances in Analog Circuits Part 6 pptx
Ngày tải lên :
20/06/2014, 06:20
... following: section explains an interval analysis techniques for linear analog tolerance problem In that approach we are interested in calculation tolerances (the range of values) for real and imaginary ... circuit-failure analysis in analog and mixed-signal applications, IEEE Transactions on Device and Materials Reliability 9(3): 339–347 7 Linear Analog Circuits Problems by Means of Interval Analysis Techniques ... Poland Introduction Inevitable fluctuations in the manufacturing processes and environmental operating conditions of linear analog circuits cause circuit parameters to vary about their nominal...
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Advances in Analog Circuits Part 7 docx
Ngày tải lên :
20/06/2014, 06:20
... worth pointing out that in the frequency range of digital switching noise there is no integrated structure 178 Advances in Analog Circuitsi Z j2 Z s2 digital switching transistor shield analog ... ) bg results in proportional shifts in the voltage window for amplification This "window-shifting" can be conveniently utilized in a number of ways such as in analog wave-shaping circuits sensitive ... Schmitt Trigger circuit, a non linear analog circuit block very useful in reducing noise in analog wave shaping and control circuits as well as in digital systems In our design, we use only four...
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Advances in Analog Circuits Part 8 potx
Ngày tải lên :
20/06/2014, 06:20
... in the logic kernels of the ultra-compact a) 4-input domino F=AND logic gate and b) 4-input domino F=OR logic gate c) The corresponding timing diagrams obtained from SPICE simulations verifying ... simulated timing diagrams obtained from transient SPICE simulations of these two circuits are jointly plotted in Fig.16c, which verifies the correct operation for each input vector indicated in the ... accessible via back-gate biasing and outstanding noise margins in terms of "stair-case" response shown in Fig.20b As input transistors are activated one at a time, no errors appear up to eight active inputs...
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Advances in Analog Circuits Part 9 pdf
Ngày tải lên :
20/06/2014, 06:20
... describe analog circuit functionality analysis and partitioning, which includes input information, pre-processing, tracing direct current paths, tracing signal paths, encoding for blocks, checking ... 3.2.2 Fine tuning via reverse mapping Once a good fitting has been realized in the questioned part of the Spice mapping, we may solve the identification problem in a more direct way by first inverting ... source circuits Advances in Analog Circuits Analog- aware Schematic Synthesis 257 258 Advances in Analog Circuits Fig 12 Structure features for cascode current source with wide output swing circuits...
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Advances in Analog Circuits Part 10 docx
Ngày tải lên :
20/06/2014, 06:20
... The signal spreading is terminated while reaching power supply terminals, ground terminals, or output terminals During signal path tracing, the signal input terminal node is put into the signal ... location for wiring length minimized 6.3 Wiring based on functionality In the operation of wiring for schematic, the wiring includes the special wiring, wiring in a direct current path, wiring between ... Input Terminal Current Mode Input Terminal Positive Power Supply Terminal Current Mode Input Terminal Negative Power Supply Terminal Current Mode Output Terminal Ground Terminal Fig 50 Find the...
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Advances in Analog Circuits Part 11 pptx
Ngày tải lên :
20/06/2014, 06:20
... Universitaet Muenchen Germany Introduction Analog circuits form an important part in integrated circuits and in particular in ASICs (Application Specific Integrated Circuits) However, due to the ... for Discrete Sizing of Analog Circuits 303 ˆN Algorithm 1: Branch and Bound(d inc ,D N , Drel ) ˆN Input: incumbent d inc , parameter domain D N , relaxed domain Drel //compute minimum for given ... solved in the continuous domain A description of the recursive method is given in Algorithm and in the following The algorithm is primarily based on two principles: 304 Advances in Analog Circuitsi...
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Advances in Analog Circuits Part 12 doc
Ngày tải lên :
20/06/2014, 06:20
... to obtain the u nullcline by plotting the points where uo and u1 had almost the same value In this way, I obtained a series of points showing the shape of the u nullcline The series of points was ... nullclines equation (u = 0) and equaling to zero, I calculated the local minimum (u− , v− ) and local maximum (u+ , v+ ), representing the intersection point of the nullclines 330 Advances in Analog ... (temperature) into electrical impulses The combination of such kind of simple circuit will allow the design of hardware system that are capable of detecting, transforming, transferring, processing and interpreting...
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Advances in Analog Circuits Part 13 pot
Ngày tải lên :
20/06/2014, 06:20
... original constraints of the problem An ideal solution X 358 358 Advances in Analog Circuits Advances in Analog Circuitsi for and for all feasible (assuming would thus have minimization) For combinatorial ... Advances in Analog Circuits Advances in Analog Circuitsi A genetic encoding for artificial evolution of analog networks must be capable of representing both; the topology and the sizing of the ... and Computing Sciences, September, 1993 366 366 Advances in Analog Circuits Advances in Analog Circuitsi Hernandez A and Coello C (2003) Evolutionary Synthesis of Logic Circuits Using Information...
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ADVANCES IN ANALOG CIRCUITS pdf
Ngày tải lên :
27/06/2014, 01:20
... purposes Design constraints include minimum gain-bandwidth product (GBW), minimum voltage DC gain (Av0 ), minimum phase margin (PM), minimum slew rate (SR) and the minimum and maximum input common mode ... Biasing Design of Analog Circuits Reza Hashemian Chapter New Port Modeling and Local Biasing of Analog Circuits Reza Hashemian Chapter Part 15 47 Behavioral Modeling of Mixed-Mode Integrated Circuits ... of analog circuits considering process variations and parameter degradation Chapter shows the application of interval analysis techniques for linear analog circuit’s problems When analog circuits...
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Effective fault diagnosis in chemical plants by integrating multiple methodologies
Ngày tải lên :
09/09/2015, 17:52
... established Monitoring is a continuous real-time task of determining the conditions in a physical system It consists of recording information, recognizing changes and detecting abnormalities in the systems ... and fault diagnosis The terminology given by Raich and Cinar (1996) is adopted here Fault detection is determining whether a fault has occurred Early detection may provide invaluable warning ... occurred, so that the effect of fault can be eliminated in a more efficient manner Fault diagnosis is determining which fault occurred, in other words, determining the cause of observed out-of-control...
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Interferon-c Release Assays for Active Pulmonary Tuberculosis Diagnosis in Adults in Low- and Middle-Income Countries: Systematic Review and Meta-analysis pdf
Ngày tải lên :
22/03/2014, 18:20
... remains in widespread use and indeterminate IGRA results may affect assay performance in low-income settings, we also evaluated (1) observed differences in sensitivity for active tuberculosis diagnosis ... middle-income countries IGRA specificity in diagnosing LTBI, estimated among individuals at low risk for tuberculosis exposure in settings with low tuberculosis incidence (high-income settings), ... tuberculosis (we included indeterminate IGRA results in the denominator if they occurred in individuals with culture-positive tuberculosis), and (2) specificity was defined as the proportion of individuals...
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Báo cáo y học: "Identification of secondary targets of N-containing bisphosphonates in mammalian cells via parallel competition analysis of the barcoded yeast deletion collection" ppsx
Ngày tải lên :
09/08/2014, 20:20
... whose inhibition prevents protein prenylation [2,3] In vitro studies conducted on tumor cell lines suggest that N-BPs are able to exert a broad spectrum of actions, including inhibition of invasion, ... shown) N-BP treatment inhibits cell migration Based on the finding that N-BPs may have an effect on tubulin dynamics, which is involved in many essential functions, including cell movement, we ... (Figure 6) Interestingly, while the ALE-induced increase of DBF4 was reversed by simultaneous addition of 25 μM of GGPP, the increase in TBCB remained unaffected by GGPP treatment, suggesting that...
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Analysis and engineering of light in complex media via geometrical optics
Ngày tải lên :
09/09/2015, 11:11
... with the help of tensor analysis we generalize ray tracing machinery in a coordinate-free style and we show in detail how ray tracing in anisotropic media in arbitrary coordinate systems and curved ... certain index of refraction distribution in space n x, y, z , it is exceedingly difficult to go in the opposite direction―to command light to certain things by engineering the refractive index ... and to investigate techniques that help us bring the behavior of light in complex media under our control We are specifically interested in the strong tool of ray tracing for studying the interaction...
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FAULT DIAGNOSIS OF PERMANENT MAGNET SYNCHRONOUS MOTOR BASED ON MECHANICAL AND MAGNETIC CHARACTERISTIC ANALYSIS
Ngày tải lên :
16/09/2015, 12:06
... Motor fault signal processing technologies Fault signal processing is necessary in the fault analysis as the signal obtained is normally contaminated by a lot of sources The aim of the motor fault ... presented an intelligent digital signal proceeding methodology for diagnosing faults in rotating machinery using the wavelet theory, based on a nonlinear adaptive algorithm Huang and Kuang [45] investigated ... predictions remains a challenging task in engineering practice This thesis aims to reveal the main vibration consequences induced by the electromagnetic and mechanical interaction in the PMSM Another...
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Applications of multiv ariate analysis techniques for fault detection, diagnosis and isolation
Ngày tải lên :
30/09/2015, 13:49
... Process Fault 10 fault intensity 102 Figure 4.21: Depropanizer Process Fault 10 – Individual significant fault intensity values 102 Figure 4.22: Depropanizer Process Fault 11 fault intensity ... Process Fault 14 – Fault intensity values 106 Figure 4.29: Depropanizer Process Fault 14 – Individual significant fault intensity values 106 Figure 4.30: Depropanizer Process Fault 15 – Fault intensity ... Dynamic Principal Component Analysis EWMA Exponentially Weighted Moving Average FDA Fisher Discriminant Analysis FDD Fault Detection and Diagnosis KPCA Kernel Principal Component Analysis LDA Linear...
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