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This paper presents the Fuzzy controller based bridgeless buck converter has been estimated and the performance of the converter is analyzed. This converter has advantages like reduced switching losses, stresses and EMI. The method to predict the steady state and dynamic performance of the converter fed with PMDC motor operation has been presented. The proposed converter has been analyses with the closed loop and open loop condition. The simulation study indicates the superiority of fuzzy control over the conventional control methods. A prototype Buck converter is designed and experimentally demonstrated. The prototype is tested for the steady state and transient conditions. Comparison between experimental and simulations show a very good agreement and the reliability of fuzzy controller.

DESIGN AND IMPLEMENTATION OF BRIDGELESS BUCK CONVERTER WITH FUZZY CONTROLLER FED PMDC DRIVE