摘要:

AbstractThis paper develops an algorithm for multiple fault diagnosis of analogue‐digital circuits. By sequentially partitioning the devices into those ‘assumed good’ and those ‘under test’, it is possible to develop a set of fault diagnosis equations which account for the special nature of digital components. A modified Newton‐Raphson solution is then described which incorporates a digital state hypothesis testing scheme in the solution of the fault diagnosis equations for each partition. After solving for the input‐output characteristics of the devices under test, a Boolean decision algorithm is used to analyse the test results of each partition and thus sequentially arrive at the set of faulty elements. A generic condition for diagnosability in terms of the circuit topology is given. Two examples are included to illustrate

ISSN:0098-9886    

DOI:10.1002/cta.4490150102

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1987

数据来源: WILEY

摘要:

AbstractTechniques formerly developed in the theory of Poincaré half‐maps are modified and applied to the three‐region piecewise‐linear continuous dynamical system associated with Chua's circuit. Both transfer and return maps, induced by the trajectories inside the intermediate region in state space, are formulated as implicit equations. the boundaries of the domains of these maps are determined explicitly, using the method for calculating the initial points of touching trajectories subject to appropriate switching dynamics. A charting of the canonical parameter space of the dynamics that acts on the intermediate region is indicated. Among other things, this chart reveals the existence of new types ofchaoticattractors different from the double scroll and Rössler attractors previously discovered from Chua's

ISSN:0098-9886    

DOI:10.1002/cta.4490150103

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1987

数据来源: WILEY

摘要:

AbstractThe paper deals with the design of 3‐ports consisting of the parallel connection, at port 1, of a lowpass ladder of degreenhaving all its attenuation poles at infinity, with a highpass ladder of degreemhaving all its attenuation poles at DC, the purpose of the design being to achieve a Butterworth (maximally flat) behaviour, simultaneously in the lowpass direction (1‐2) at DC and in the highpass direction (1‐3) at infinity. Norton1has solved the casem = nfor constant impedance filter pairs. the much more difficult case where one of the above restrictions is not met is discussed in general terms and some new results are obtained. Although the problem is far from being completely solved, useful explicit design relations are established for a few filter pairs of low de

ISSN:0098-9886    

DOI:10.1002/cta.4490150104

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1987

数据来源: WILEY

摘要:

AbstractThe present paper describes a logarithmic A/D converter (LADC) working with the charge redistribution principle. the LADC uses a serial and a parallel capacitive attenuator and is suitable for manufacturing on a single chip. Formulae for the values of the capacitors are given in terms of the base of logarithm used. This LADC uses logarithmically spaced voltage comparison levels and therefore eliminates the use of logarithmic analogue signal conditioning circuits.

ISSN:0098-9886    

DOI:10.1002/cta.4490150105

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1987

数据来源: WILEY

ISSN:0098-9886    

DOI:10.1002/cta.4490150106

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1987

数据来源: WILEY

ISSN:0098-9886    

DOI:10.1002/cta.4490150107

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1987

数据来源: WILEY

ISSN:0098-9886    

DOI:10.1002/cta.4490150108

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1987

数据来源: WILEY

ISSN:0098-9886    

DOI:10.1002/cta.4490150101

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1987

数据来源: WILEY