Title :
Composite-amplifier Wien-bridge oscillator with improved limit-cycle stability
Author :
Wojtyna, Ryszard
Author_Institution :
Instutut Telekommikacji, Akademie Techniczno-Rolnicza, Bydgo szcz, Poland
Abstract :
The problem of undesirable low-frequency oscillation which may occur in oscillators with composite amplifiers is discussed. The article shows how the Wien-bridge oscillator proposed by Carlosena et al (1990) should be modified in order to avoid such oscillation and ensure stable operation of the oscillator and good properties of the sinusoidal waveform generated.
Keywords :
bridge circuits; frequency stability; limit cycles; oscillators; Wien-bridge oscillator; composite amplifiers; limit-cycle stability; low-frequency oscillation; sinusoidal waveform; stable operation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19921470
