Electronically tunable quadrature oscillator with voltage and current outputs

Author

Knobnob, Boonying ; Kumngern, Montree

Author_Institution

Electron. & Telecommun. Eng. Dept., Rajamangala Univ. of Technol. Thanyaburi (RMUTT), Phathumthani, Thailand

fYear

2010

fDate

19-21 May 2010

Firstpage

28

Lastpage

31

Abstract

A new electronically tunable current-mode quadrature oscillator with voltage and current outputs using operational transconductance amplifiers (OTAs) is presented. The proposed oscillator is consisted of two OTAs, two grounded capacitors and one grounded resistor. The oscillation condition and the oscillation frequency are independently controllable. The oscillation frequency can be controlled by a bias current of OTA. PSPICE simulation results which confirm the theoretical analysis are also given.

Keywords

capacitors; operational amplifiers; oscillators; resistors; OTA; PSPICE simulation; bias current; current output; electronically tunable quadrature oscillator; grounded capacitors; grounded resistor; operational transconductance amplifiers; oscillation condition; oscillation frequency; voltage output; Capacitors; Frequency control; Impedance; Operational amplifiers; Resistors; Signal generators; Transconductance; Tunable circuits and devices; Voltage; Voltage-controlled oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Engineering/Electronics Computer Telecommunications and Information Technology (ECTI-CON), 2010 International Conference on

Conference_Location

Chaing Mai

Print_ISBN

978-1-4244-5606-2

Electronic_ISBN

978-1-4244-5607-9

Type

conf

Filename

5491540