Title :
Voltage controllable oscillator based on current amplifiers and voltage buffer
Author :
Sotner, Roman ; Slezak, Josef ; Sevcik, Bretislav ; Kincl, Zdenek ; Dostal, Tomas ; Basta, Milos
Author_Institution :
Dept. of Radio Electron., Brno Univ. of Technol., Brno, Czech Republic
Abstract :
Controllable oscillator based on adjustable current active elements and voltage buffer is presented in the paper. Signal flow graph method employing lossless and lossy integrator synthesis and nonstandard approach for adjusting of oscillation condition based on controllable current feedback are used. The work is focused on analysis of parasitic influences affecting real behavior of the circuit. Expected results and results obtained from real circuit measurement are compared.
Keywords :
amplifiers; voltage-controlled oscillators; adjustable current active elements; controllable current feedback; current amplifiers; integrator synthesis; nonstandard approach; oscillation condition; real circuit measurement; signal flow graph method; voltage buffer; voltage controllable oscillator; Equations; Gain control; Oscillators; Resistance; Tuning; Voltage control; Controllable oscillator; current amplifiers; current attenuators; parasitic influences; real behavior;
Conference_Titel :
Mixed Design of Integrated Circuits and Systems (MIXDES), 2011 Proceedings of the 18th International Conference
Conference_Location :
Gliwice
Print_ISBN :
978-1-4577-0304-1
