A ring system of resistively coupled Chua's circuits (oscillators) is investigated, which can also be considered as a ring system of triggers coupled through RC-circuits. Equations describing the ring system of n (n=1,2,2,...) oscillators (triggers) are derived, and results of numerical analysis of closed systems with one, two, or three oscillators are presented. It is shown that, when the coupling is introduced into a ring oscillator system, oscillations (chaotic and regular) may occur at such parameters that do not support oscillations in each partial autonomous oscillator. The possibility of controlling oscillations in the ring system using external stimuli is demonstrated.
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