摘要:

AbstractA new topology for the realization of MOSFET‐C integrated biquadratic filters is proposed which uses an MOS differentiator with non‐balanced structures. an interesting characteristic of the new topology is the possibility of realizing lowpass, bandpass and highpass filters with a one‐to‐one relationship between the biquadratic parameters and the circuit elements. This characteristic allows the implementation of programmable switchable

ISSN:0098-9886    

DOI:10.1002/cta.4490180502

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

年代:1990

数据来源: WILEY

摘要:

AbstractVariable dimension algorithms are a recent class of globally convergent algorithms for solving sets of non‐linear equations. This paper introduces a simple circuit‐theoretical interpretation of the underlying idea and describes its advantages as compared to the globally convergent methods better known in circuit theory, such as the generalized Katzenelson algorithm. the convergence criterion is also stated in topological terms, and these conditions turn out to coincide with very general sufficient conditions for existence of solutions. the approach taken here can therefore be seen as a constructive way to prove solvability of resistive circuits. the paper also discusses how to implement the algorithm in an efficient and practical

ISSN:0098-9886    

DOI:10.1002/cta.4490180503

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

年代:1990

数据来源: WILEY

摘要:

AbstractTwo methods for finding bounds on the solutions of some classes of resistive circuits containing non‐linear no‐gain resistors are presented. the magnitude of a voltage or current is shown to be bounded by its magnitudes appearing after replacement of all non‐linear devices by subcircuits consisting only of open‐ and short‐circuit elements. Examples of transistor circuits taken for comparison from the existing literature illustrate how the theorems work in

ISSN:0098-9886    

DOI:10.1002/cta.4490180504

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

年代:1990

数据来源: WILEY

摘要:

AbstractIn this paper the general correlation spectrum of an oscillator with white and f‐αanoise sources is derived from the Langevin equations describing the deterministic and stochastic behaviour of an oscillator by perturbation methods. the treatment of f‐αnoise and the influence of the finite measuring time on the noise spectra are included in a time domain calculation. the theory is applied to a Van der Pol oscillator exhibiting parametric sideband amplification and to a realized oscillator demonstrating the applicability of the theory to technically relevant cir

ISSN:0098-9886    

DOI:10.1002/cta.4490180505

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

年代:1990

数据来源: WILEY

摘要:

AbstractIt is shown that the problem of synthesizingRCoscillators and notch filters can be reduced to a group theoretic problem of finding isomorphisms. the required group is identified as theKlein group.From this it is also shown that there is a sharp upper bound on the number of new circuits that can be generated from the knowledge of a parent circuit. This bound is independent of the number of branches and internal nodes.

ISSN:0098-9886    

DOI:10.1002/cta.4490180506

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

年代:1990

数据来源: WILEY

ISSN:0098-9886    

DOI:10.1002/cta.4490180507

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

年代:1990

数据来源: WILEY

ISSN:0098-9886    

DOI:10.1002/cta.4490180501

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

年代:1990

数据来源: WILEY