RT Journal Article
SR Electronic
A1 Stork, Milan
T1 Sinusoidal and Relaxation Wide Range Voltage Controlled Oscillators
JF Communications - Scientific Letters of the University of Zilina
YR 2015
VO 17
IS 11
SP 83
OP 88
DO 10.26552/com.C.2015.1A.83-88
UL https://komunikacie.uniza.sk/artkey/csl-201511-0013.php
AB This paper presents a sinusoidal Wien-bridge and square wave wide range voltage controlled oscillators. The square wave oscillator is based on relaxation (Schmitt trigger) topology. All described oscillators have potential use in different applications, e.g. phase locked loops, modulation and detection. The frequency changing is based on optically coupled resistor with 100 dB dynamic range. The oscillators were constructed and measured. The new method for amplitude control for quadrature oscillator is also described.