This paper presents dynamic output feedback controller design for fuzzy dyn
amic systems. Three kinds of controller design methods are proposed based o
n a smooth Lyapunov function or a piecewise smooth Lyapunov function. The c
ontroller design involves solving a set of linear matrix inequalities (LMI'
s) and the control laws are numerically tractable via LMI techniques. The g
lobal stability of the closed-loop fuzzy control system is also established
.