In this paper time-delay effects on the master-slave synchronization scheme
are investigated. Sufficient conditions for master-slave synchronization o
f Lur'e systems are presented for a known time-delay in the master and slav
e systems. A delay-dependent synchronization criterion is given based upon
a new Lyapunov-Krasovskii function. The derived criterion is a sufficient c
ondition for global asymptotic stability of the error system, expressed by
means of a matrix inequality. The feedback matrix follows from solving a no
nlinear optimization problem. The method is illustrated for the synchroniza
tion of Chua's circuits, 5-scroll attractors and hyperchaotic attractors.