Controlling Chua´s global unfolding circuit family

The self-unified and conventional feedback control strategy developed by the present author and his colleagues for the control of chaotic dynamical systems is extended from the Chua´s circuit to its global unfolding, driving the circuit dynamics from chaotic attractors to any desirable trajectories such as unstable limit cycles. A simple and realistic sufficient condition for such controllability of the global unfolding is derived. A similar sufficient condition for the controllability of the whole family of nonlinear dynamical systems that are topologically equivalent to the Chua global unfolding is also established