Sinusoidal and Relaxation Wide Range Voltage Controlled Oscillators

Autor:	Milan Stork
Jazyk:	angličtina
Rok vydání:	2015
Předmět:	wien-bridge oscillator relaxation oscillator phase locked loop voltage controlled oscillator photoresistor quadrature oscillator Transportation and communications HE1-9990 Science Transportation engineering TA1001-1280
Zdroj:	Communications, Vol 17, Iss 1A, Pp 83-88 (2015)
Druh dokumentu:	article
ISSN:	1335-4205 2585-7878
DOI:	10.26552/com.C.2015.1A.83-88
Popis:	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.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/70b2d7d8484d4deb9b759ce5899b3aa1 Zobrazit plný text záznamu View record in DOAJ