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IEE Proceedings G - Electronic Circuits and Systems

Issue 1 • Date February 1987

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Displaying Results 1 - 8 of 8
  • Sine-wave synthesis using walsh functions

    Publication Year: 1987, Page(s):1 - 6
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (561 KB)

    An investigation of the synthesis of sine waves from a truncated series of Walsh waves of ascending sequency is described. Computer simulation of the model is carried out in establishing potential circuit performance. A prototype circuit has been built and tested to add validity to the theoretical results. View full abstract»

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  • Wide-band precision rectification

    Publication Year: 1987
    Cited by:  Papers (12)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (944 KB)

    Operational-amplifier supply-current sensing is employed in the design of high-performance precision rectification. The designs presented in this paper compare favourably with conventional precision rectifier circuits both in linearity and bandwidth, and are constructed from low supply bias-current operational amplifiers and current mirrors. Application of this new rectifying technique in the desi... View full abstract»

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  • Single-fault diagnosis of nonlinear resistive networks

    Publication Year: 1987, Page(s):16 - 22
    Cited by:  Papers (4)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (844 KB)

    The paper presents a simulation-aftertest algorithm for fault diagnosis of a nonlinear resistive network. Fault diagnosis equations are expressed in terms of a modified nodal description of the test network. The linear programming technique is used to obtain different solutions of these equations. It is assumed that the maximum number of simultaneous faults in the circuit is bounded. This enables ... View full abstract»

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  • Analysis of filter bank transfer functions

    Publication Year: 1987, Page(s):23 - 30
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1020 KB)

    Parallel filter banks are used for realtime signal analysis, e.g. spectrum or speech analysis. The problem to be solved in filter bank realisation is to achieve as high selectivity of individual filters as possible and simultaneously meet the amplitude and phase characteristic specification of the bank. A design method for a bank of analogue filters is presented in the paper. An algorithm for the ... View full abstract»

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  • Oscillators with amplitude control by restoration of capacitor initial conditions

    Publication Year: 1987, Page(s):31 - 37
    Cited by:  Papers (4)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (805 KB)

    The paper describes oscillators where the amplitude is controlled by the restoration of initial conditions at the energy storage elements. If these elements are capacitors, the control circuit includes a window comparator, a polarity comparator, an AND gate, a switch and a source of reference voltage. This control circuit momentarily connects (each oscillation period) the oscillator capacitor to t... View full abstract»

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  • Minimax design of one-dimensional recursive digital filters of a given approximation type: a closed form approach

    Publication Year: 1987, Page(s):38 - 44
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (681 KB)

    Minimax design of 1-dimensional recursive digital filters is currently achieved by using iterative methods based on linear or nonlinear programming. The methods need extensive computation and their convergence cannot be always guaranteed. Recently Charalambous developed a closed form approach for designing minimax elliptic filters. In the present paper, the Charalambous approach is extended into d... View full abstract»

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  • Simplified analysis off arbitrary switched-capacitor networks

    Publication Year: 1987, Page(s):45 - 53
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1384 KB)

    A general method is presented which allows a closed-form analysis of switchedcapacitor (SC) networks with several phases, arbitrary duty cycles and with nonideal operational amplifiers. The method is based on a new equivalent representation of SC networks in the zdomain and on flow-graph techniques. The equivalent z-domain representations of SC networks proposed in this paper are compatible with c... View full abstract»

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  • Realisation of irrational immittances containing a square root

    Publication Year: 1987, Page(s):55 - 56
    IEEE is not the copyright holder of this material | PDF file iconPDF (269 KB)
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