Study of Adjustable Gains for Control of Oscillation Frequency and Oscillation Condition in 3R-2C Oscillator

Autor: R. Sotner, J. Jerabek, N. Herencsar, Z. Hrubos, T. Dostal, K. Vrba
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: Radioengineering, Vol 21, Iss 1, Pp 392-402 (2012)
Druh dokumentu: article
ISSN: 1210-2512
Popis: An idea of adjustable gain in order to obtain controllable features is very useful for design of tuneable oscillators. Several active elements with adjustable properties (current and voltage gain) are discussed in this paper. Three modified oscillator conceptions that are quite simple, directly electronically adjustable, providing independent control of oscillation condition and frequency were designed. Positive and negative aspects of presented method of control are discussed. Expected assumptions of adjustability are verified experimentally on one of the presented solution.
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