Novel generation method of current mode Wien-type oscillators using current conveyors

Abstract

A new approach to the generation of current mode Wien-type oscillators using the current conveyor is introduced. The proposed method is based on replacing the generalized current negative impedance converter in the conventional Wien oscillator by a well-known equivalent circuit realized using the current conveyor. A family of four new current mode oscillators employing grounded capacitors derived from the corresponding classical op amp Wien oscillator family is given. The proposed oscillators have the attractive advantage that the condition of oscillation and the frequency of oscillation can be independently controlled without affecting each other. PSpice simulation results supporting the theoretical analysis are given.