Notification:
We are currently experiencing intermittent issues impacting performance. We apologize for the inconvenience.
By Topic

Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on

Issue 12 • Date Dec. 1997

Filter Results

Displaying Results 1 - 6 of 6
  • 1997 Index IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications Vol. 44

    Publication Year: 1997 , Page(s): 1 - 20
    Save to Project icon | Request Permissions | PDF file iconPDF (802 KB)  
    Freely Available from IEEE
  • Analog rank extractors

    Publication Year: 1997 , Page(s): 1114 - 1121
    Cited by:  Papers (24)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (200 KB)  

    This paper focuses on continuous-time analog rank extractors, with an emphasis on MOS circuits. Sources of errors in previous analog implementations are analyzed, and an improved multiple-input min/max circuit configuration is proposed. A generalized analog rank extractor is discussed as well as its limitations on the number of inputs and rank. In a sorting network approach, the presorting and path combination techniques are used to reduce the rank selector implementation View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Structure-based neural network learning

    Publication Year: 1997 , Page(s): 1143 - 1149
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (308 KB)  

    We present a new learning algorithm for the structure of recurrent neural networks. It is shown that any m linearly independent n-dimensional vectors can be stored in at most (n+m-2)-dimensional symmetric network. A storage procedure which satisfies this bound is presented. We propose a new learning procedure for the domain of attraction which preserves both the equilibrium set and the stability property of the original system. It is shown that previously learned attraction regions remain invariant under the proposed learning rule, Our emphasis throughout this brief is on the design of associative memories and classifiers View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Dependent switched capacitor chaos generator and its synchronization

    Publication Year: 1997 , Page(s): 1122 - 1128
    Cited by:  Papers (22)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (236 KB)  

    This paper discusses a circuit family including a dependent switched capacitor (DSC). The DSC function is instantaneously short of one capacitor at the moment when its voltage reaches a threshold. The chaos generation can be guaranteed theoretically. We also consider a master-slave system. If there does not exist a homoclinic orbit in the master chaos attractor, it exhibits either in-phase or inverse-phase synchronization of chaos. If there exists a homoclinic orbit, the synchronization is broken down. We explain the synchronization mechanism and evaluate its robustness theoretically. The theoretical results have been verified in laboratory experiments View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Study of bifurcations in current-programmed DC/DC boost converters: from quasiperiodicity to period-doubling

    Publication Year: 1997 , Page(s): 1129 - 1142
    Cited by:  Papers (81)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (440 KB)  

    This paper studies the bifurcation paths exhibited by a simple second-order DC/DC boost converter under current-programmed control with and without voltage feedback. Previous work in this area has reported two distinct types of bifurcation paths, namely via regions of quasi-periodic orbits and period-doubling. This paper demonstrates that the two different types of bifurcation paths can, in fact, be viewed as part of another bifurcation in which the quasi-periodic sequence transmutes into the period-doubling sequence, and that such a bifurcation is observed regardless of the presence of the outer voltage feedback loop as long as a suitable set of bifurcation parameters is chosen. The describing iterative map is derived in closed form and is used to develop the main results via a series of computer experiments. The characteristic multipliers are calculated and the first onset of flip-bifurcation is predicted. Computer simulation based on an exact piecewise switched model confirms the predicted bifurcations. The exhibition of quasi-periodic orbits is confirmed by computation of the Lyapunov exponent. Finally, a series of return maps are generated to provide an alternative viewpoint to the reported bifurcations in terms of a transmutation from a tent-like map to a logistic-like map View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The use of linear models in A/D converter testing

    Publication Year: 1997 , Page(s): 1105 - 1113
    Cited by:  Papers (16)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (260 KB)  

    This paper demonstrates how a linear modeling technique can be applied to three common methods for testing analog-to-digital converters (ADC's)-the servo-loop method, the tally-and-weight method, and the code density method-to improve their efficiency and accuracy. In order to compare the accuracy of the test procedures that incorporate the linear modeling technique with the corresponding procedures that do not, confidence intervals are derived for the integral and differential nonlinearity (INL and DNL) estimates obtained in both cases. Since the linear model may itself introduce some error in the estimates, the accuracy of the model must be determined in order to make the comparisons meaningful. This is accomplished by using a nested experimental design to determine how much of the variance in the transition levels is accounted for by the model View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.