Title :
A simple wide-band sine wave quadrature oscillator
Author_Institution :
Inst. of Molecular & Biomolecular Electron., Wales Univ., Bangor, UK
fDate :
6/1/1993 12:00:00 AM
Abstract :
A simple sine wave oscillator delivering two signals in quadrature has been developed. It covers the frequency range from below 1 Hz to 100 MHz and is voltage-controllable over each frequency decade. The circuit consists of two 90° phase shift stages using active allpass filters and an inverter, all arranged in a feedback loop. Although general application is envisaged, the design is particularly suitable in particle electrorotation studies
Keywords :
active filters; all-pass filters; broadband networks; function generators; invertors; variable-frequency oscillators; 1 Hz to 100 MHz; active allpass filters; feedback loop; inverter; particle electrorotation; phase shift stages; wide-band sine wave quadrature oscillator; Active filters; Bandwidth; Feedback circuits; Feedback loop; Frequency; Inverters; Operational amplifiers; Signal generators; Voltage-controlled oscillators; Wideband;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
