Design And Development of Current Mode AC DC Switching Power Supply

Mohd Hafizi, Ab Rahim (2012) Design And Development of Current Mode AC DC Switching Power Supply. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Nowadays, power electronics plays a very meaningful role in many branches and sectors such as industrial, household applications and etc. The implementation of converters used in very wide function such as power supply, control systems and etc. Flyback converter is used widely and comprehensively in power supplies for modern equipment such as notebooks, printers, computer’s monitors and also in household appliance due to its compactness and cost effectiveness. Basically, in general AC/DC adapter or power supply has evolved around the flyback topology especially for the low output voltage power supply. Therefore, for flyback converter to achieve the desired systems performance, optimization issues for the design requirement in next generation of portable electronics systems such as efficiency, cost and size need to be highlighted. This power supply is designed using current mode control of switching power supply by implementing flyback topology. The single stage AC/DC current-mode controlled flyback converter is designed with the present of optocoupler feedback implementing from the output voltage of the power supply. This power supply has been implemented well and the results shown that the output voltage of the power supply is maintained at desired value with the variation of input voltage.

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