Title :
Sinusoidal current-controlled oscillator
Author :
Bhattacharyya, Arun K. ; Viswanathan, T.R.
Author_Institution :
Indian Institute of Technology, Department of Electrical Engineering, Kanpur, India
Abstract :
A sinusoidal oscillator whose frequency is linearly related to an input control current is described. A variable inductor is realised using a fixed inductor and a variable-gain current-controlled current source. The variable inductor is then used in an LC oscillator circuit. Linear frequency variation with control current is obtained in a temperature-independent manner by using a function generator. Frequency variation over a range of 1:3 is obtainable, with a linearity of better than 1%.
Keywords :
frequency control; variable-frequency oscillators; 1% linearity; 1:3 frequency variation; LC oscillator circuit; circuit diagram; current controlled oscillators; frequency control; sinusoidal oscillator; temperature insensitive circuit; variable gain current controlled current source; variable inductor;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19760469
