This paper primarily presents detailed development of magnetic levitation system which can be used in laboratory for levitation experiments. A non-linear system was found to be highly unstable in nature, magnetic levitation system was found to be one of the non-linear systems. In this paper, mathematical model of the system is derived and system transfer function is obtained from the co-energy. The mathematical model of the system showed that, the system is highly non-linear and inherently unstable. A root locus technique was employed in order to design a suitable controller for the system. The performance of the designed controller is investigated using the available control tool box in Matlab®. The controller is then practically implemented using a simple circuit. The developed controller stabilizes the system and is able to levitate many hollow weights of different masses at various distances.
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