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The grip – the most efficient type of ship in the commoners’ revolt of Matij Ivanić (Summary)

Authors
Publisher
Institute of Croatian History, Faculty of Philosophy Zagreb, FF press
Publication Date
Disciplines
  • Design

Abstract

Dražen Jurišic´, George S. Moschytz, Neven Mijat Low-Sensitivity Active-RC Allpole Filters Using Optimized Biquads UDK IFAC 621.372.63 5.5.4 Original scientific paper In this paper we present an optimal design procedure for second- and third-order active resistance-capacitance (RC) single-amplifier building blocks that are used to build a high-order tolerance-insensitive allpole filter. The design procedure of low-sensitivity, low-pass second- and third-order active-RC allpole filters, with positive feed- back, has already been published. The design was extended to the high-pass and band-pass filters, as well as, to the filters using negative feedback. In this paper we summarize all these previously presented designs in the form of a tabulated step-by-step design framework (cookbook). The low passive sensitivity of the resulting circuits, as well as low active sensitivity features are demonstrated on the high-order Chebyshev filter examples. The resulting low passive sensitivity is investigated using the Schoeffler sensitivity measure, whereas the low active sensitivity is investigated with Matlab using finite and frequency dependent opamp gain. Key words: Low-sensitivity active-RC filters, Single-amplifier biquads and bitriplets, Cascade design Projektiranje svepolnih aktivnih RC filtara niske osjetljivosti pomoc´u optimiranih bikvadratnih sekcija. Prikazan je optimalan postupak projektiranja aktivnih RC filtarskih sekcija drugog i trec´eg reda bez konacˇnih nula s jednim pojacˇalom koje se koriste pri gra�enju filtara visokog reda s niskom osjetljivošc´u. Postupak projektiranja nisko osjetljivih, nisko propusnih filtara vec´ je objavljen, a u ovome je radu navedeni postupak proširen na nove sekcije koje realiziraju pojasno propusnu i visoko propusnu frekvencijsku karakteristiku kao i na sekcije koje ko- riste negativnu povratnu vezu u realizaciji. Svi su postupci optimalnog projektiranja sažeti i raspoloživi u obliku tablica s postupkom projektiranja “korak po korak”. Niska osjetl

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