By Topic

IEE Proceedings G - Circuits, Devices and Systems

Issue 1 • Date Feb. 1993

Filter Results

Displaying Results 1 - 11 of 11
  • Nonlinear circuit applications with current conveyors

    Publication Year: 1993, Page(s):1 - 6
    Cited by:  Papers (16)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (471 KB)

    Integrable nonlinear building blocks such as multipliers, dividers, and piecewise linear approximation circuits using current conveyors are presented. Several practical circuits including an amplitude modulator, a squarer, a square rooter, and nonlinear resistors also have been demonstrated experimentally. The results presented in the paper will facilitate realisations of nonlinear circuits using ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Analytical DC model for p-type QW-HEMTs for CAD applications

    Publication Year: 1993, Page(s):7 - 15
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (601 KB)

    An analytical charge control model for p-type insulated-gate inverted-structure high electron mobility transistors (I/sup 2/-HEMTs) and double heterojunction high electron mobility transistors (DH-HEMTs) has been developed. In this model the quasitriangular potential well approximation is used to relate the top-heterojunction Fermi potential to the two-dimensional hole gas (2DHG) concentration ins... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Adaptive filtering incorporating a local mean estimation substructure

    Publication Year: 1993, Page(s):16 - 22
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (543 KB)

    Adaptive filters have been used successfully in many applications of signal processing. However, their performance in dealing with signals of nonzero mean, especially with sharp changes (edges), is problematic, which limits the extension of the use of adaptive filters in some important application areas. To overcome this problem, the authors introduce in this paper a scheme for adaptive filtering ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Implementation of real coefficient two-dimensional denominator-separable digital filters based on decomposition techniques

    Publication Year: 1993, Page(s):23 - 32
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (680 KB)

    In the paper, the implementation of two-dimensional digital filters is dealt with for the processing of real sequences. The approach is based on decomposition techniques to obtain separable one-dimensional polynomials from a two-dimensional polynomial, and then one-dimensional techniques are used to express the one-dimensional transfer functions as a sum of two reduced-order transfer functions wit... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Double and triple charge pump for power IC: ideal dynamical models to an optimised design

    Publication Year: 1993, Page(s):33 - 38
    Cited by:  Papers (9)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (338 KB)

    The authors propose an optimised design methodology for the double and triple optimised charge pump. The circuits discussed give an output voltage greater than the supply voltage and are commonly used in power IC or memory to allow the switching on of a MOS device. The theoretical models of charge pumps in the transient region are reported to obtain better knowledge of the circuits and the optimis... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • I/sub DDQ/ testing of oscillating bridging faults in CMOS combinational circuits

    Publication Year: 1993, Page(s):39 - 44
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (448 KB)

    I/sub DDQ/ testing has been shown to be an efficient way to test CMOS technology circuits when realistic failures, bridges among others, are considered. A particular group of bridging faults cause the circuit to oscillate because of unstable feedback. The authors focus on the evaluation of I/sub DDQ/ testability for these bridging faults. An electrical circuit model allows the analytic derivation ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Event-driven incremental timing fault simulator

    Publication Year: 1993, Page(s):45 - 54
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (761 KB)

    In this paper, FMOTA, an efficient simulator of multiple sets of multiple faults, with electrical timing information for an MOS IC, is presented. The physical faults in a real circuit are modelled more realistically by the node-short, line-open and threshold voltage degradation faults at the transistor level. On using event-driven, selective trace and mixed incremental-in-space, signal and time si... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Unified small-signal-noise model for active microwave devices

    Publication Year: 1993, Page(s):55 - 60
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (415 KB)

    A new method for modelling, concurrently, the small-signal and the noise performance of active microwave devices is proposed. Here the determination of the element values in a device equivalent circuit is no longer dependent only on the scattering parameters, but also on the device noise parameters. In other words, the device noise performance is treated as an intrinsic set of characteristics of a... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Symbolic analysis of electronic circuits based on a tree enumeration technique

    Publication Year: 1993, Page(s):68 - 74
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (391 KB)

    A topological method for symbolic analysis of electronic circuits is presented. The method is based on the derivation of the tree products of unistor graphs. A straightforward procedure to produce all directed trees of a unistor graph in independent groups is given. The network cofactor is obtained by calculating the network determinant of a modified unistor graph. A computer program based on the ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Systolic realisation of delayed two-path linear phase FIR digital filters

    Publication Year: 1993, Page(s):75 - 80
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (404 KB)

    A new method for high speed realisation of 1-dimensional (1D) linear phase FIR digital filter is presented. The method makes use of pipelining in systolic arrays to reduce the minimum clock cycle time, the delayed two-path structure to increase processing speed, and the symmetry of coefficients in a linear phase FIR digital filter to reduce multiplications. The resultant systolic delayed two-path ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Two-segment bistability and basin structure in three-segment PWL circuits

    Publication Year: 1993, Page(s):61 - 67
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (600 KB)

    Of all the piecewise-linear circuits known so far which exhibit two stable states, it is typical that their resistor characteristics each have at least three segments. The authors show that bistability cannot be achieved via a two-segment characteristic in the plane. On the other hand, complicated bistable behaviour, including chaotic attractors, can occur locally at the boundary of two linear reg... View full abstract»

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