Quadrature oscillator based on modified double current controlled current feedback amplifier

Author

Sotner, Roman ; Herencsar, Norbert ; Jerabek, Jan ; Koton, Jaroslav ; Dostal, Tomas ; Vrba, Kamil

Author_Institution

Dept. of Radio Electron., Brno Univ. of Technol., Brno, Czech Republic

fYear

2012

fDate

17-18 April 2012

Firstpage

1

Lastpage

4

Abstract

We introduced features of adjustable current feedback amplifier modification as a basis of oscillators in this paper. Key feature of presented active element is a current gain and intrinsic resistance control. Quadrature oscillator with this block is presented. Direct electronic control of important features (oscillation frequency and oscillation condition) is discussed. An example of intended suggestions was verified by PSpice simulations with designed model of active element.

Keywords

SPICE; electric current control; electric resistance; feedback amplifiers; oscillators; PSpice simulation; active element; current feedback amplifier modification; current gain; direct electronic control; double current controlled current feedback amplifier; intrinsic resistance control; oscillation condition; oscillation frequency; quadrature oscillator; Feedback amplifier; Frequency control; Mathematical model; Oscillators; Resistance; Resistors; Standards; Current feedback amplifier; controllable quadrature oscillators; current gain; direct electronic control;

fLanguage

English

Publisher

ieee

Conference_Titel

Radioelektronika (RADIOELEKTRONIKA), 2012 22nd International Conference

Conference_Location

Brno

Print_ISBN

978-1-4673-0659-1

Type

conf

Filename

6207650