<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>The paper deals with synthesis of active frequency filters and oscillators for applications in the video band. The synthesis is based on the modified signal flow graph design approach in the current mode. The commercially available high frequency current conveyors and second order structures are used. Basic structure is employing loss-less and lossy current mode integrators in two distributed feedback loops. Some of the used active elements allow to control current gain which is very useful in applications. High frequency multi-functional filter and electronically adjustable quadrature oscillator configurations are discussed. Most of the used passive elements (mainly capacitors) are grounded which is suitable for IC implementation. Simulation and experimental results demonstrate function and features very well.</p></abstract>

The paper deals with synthesis of active frequency filters and oscillators for applications in the video band. The synthesis is based on the modified signal flow graph design approach in the current mode. The commercially available high frequency current conveyors and second order structures are used. Basic structure is employing loss-less and lossy current mode integrators in two distributed feedback loops. Some of the used active elements allow to control current gain which is very useful in applications. High frequency multi-functional filter and electronically adjustable quadrature oscillator configurations are discussed. Most of the used passive elements (mainly capacitors) are grounded which is suitable for IC implementation. Simulation and experimental results demonstrate function and features very well.

An Example of Easy Synthesis of Active Filter and Oscillator using Signal Flowgraph Modification and Controllable Current Conveyors

Department of Radio electronics, Faculty of Electrical Engineering and Communication, Brno University of Technology, Purkyňova 118, PA-556 612 00 Brno Czech Republic

Journal of Electrical Engineering

The paper deals with synthesis of active frequency filters and oscillators for applications in the video band. The synthesis is based on the modified signal...

An Example of Easy Synthesis of Active Filter and Oscillator using Signal Flowgraph Modification and Controllable Current Conveyors

Published Online: Oct 24, 2011

Page range: 258 - 266

DOI: https://doi.org/10.2478/v10187-011-0041-z

Keywords
frequency filters, oscillators

This content is open access.

An Example of Easy Synthesis of Active Filter and Oscillator using Signal Flowgraph Modification and Controllable Current Conveyors

Published Online: Oct 24, 2011

Page range: 258 - 266

DOI: https://doi.org/10.2478/v10187-011-0041-z

Keywordsfrequency filters, oscillators

This content is open access.

Keywords
frequency filters, oscillators