This paper discusses the problem on the quantized synchronization of complex dynamical networks with
intermittent couplings. Based on the characteristics of the impulsive period and quantizer, the synchronization criteria for
complex dynamical networks with delay and without delay are presented respectively, in the framework of the stability
theory and Razumikhin theorem. The coupling interactions among nodes exist in a series of piecewise periods. During the
coupling process, the instantaneous signals of synchronized feedback errors are imposed to be quantized through logarithmic
quantizer. Finally, the proposed results are further applied to complex dynamical networks consisting of Chua’s system as
network nodes, and numerical simulations illustrate the effectiveness of the results.

complex networks;quantized control;delay;synchronization