Detail publikace

State-Variable Higher-Order Filters with Differential Input/Output Current Followers

KUBÁNEK, D. VRBA, K.

Originální název

State-Variable Higher-Order Filters with Differential Input/Output Current Followers

Typ

článek v časopise - ostatní, Jost

Jazyk

angličtina

Originální abstrakt

This paper describes the design of a higher-order analog filter with differential input and output current followers. Prototypes of these active elements with improved internal structure are ready to be manufactured. The filter design is based on the second canonic state-variable structure and the resulting circuit offers an arbitrary transfer function. As an example, fourth-order Cauer low-pass filter is designed. It allows dynamic optimization, which prevents the active devices from being overloaded. PSpice modeling confirms a correct functionality of the filter at high frequencies. Computer simulation is also used to analyze the influence of active element real properties and of passive element tolerances on the frequency characteristic of the proposed filter.

Klíčová slova

active filter, state variable, current mode, current follower

Autoři

KUBÁNEK, D.; VRBA, K.

Rok RIV

2008

Vydáno

30. 10. 2008

Nakladatel

Global Engineering, Science and Technology Society

Místo

Seoul, Korea

ISSN

1738-6438

Periodikum

International Transaction on Computer Science and Engineering

Ročník

49

Číslo

1

Stát

Korejská republika

Strany od

186

Strany do

196

Strany počet

11

BibTex

@article{BUT49228,
  author="David {Kubánek} and Kamil {Vrba}",
  title="State-Variable Higher-Order Filters with Differential Input/Output Current Followers",
  journal="International Transaction on Computer Science and Engineering",
  year="2008",
  volume="49",
  number="1",
  pages="186--196",
  issn="1738-6438"
}