By Topic

RC phase-shifter variable sinusoidal oscillators using initial conditions-restoration amplitude control

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
S. Pookaiyaudom ; Mahanakorn Coll., Bangkok, Thailand ; K. Saivichit

A low-distortion instrumentation-quality variable sinusoidal oscillator using RC phase-shifters with the initial conditions-restoration amplitude control technique is developed. The variable frequency range is greater than five orders of magnitude. An exact analysis of the oscillation and the distortion characteristics, including the effects of the restoration time, the nonunity loop-gain, and the tuning component mismatchings upon the oscillator amplitude and the distortion is presented. The discrete-time simulation technique has been used to investigate the oscillation dynamics when the frequency is continuously changing. Experimental results confirming the validity of the theory and the high performance obtainable in practice are also presented. The basic idea of the oscillator is applied to a range of very-low-cost commercial signal generators

Published in:

IEEE Transactions on Instrumentation and Measurement  (Volume:39 ,  Issue: 6 )