Flyback converter design for low power application

Flyback converters have been quite used for DC-DC conversion and electrical isolation since they are simple to operate, minimum component count and small size. Flyback converter like any other switch mode power supply (SMPS) has two modes of conduction, the best mode for the design is selected and implemented. Due to its operation in relatively high frequency in range of 100 KHz compared to 50 Hz transformer with hard switching, some noises appeared from parasitic and leakage elements in the converter. The sources of noises have been tracked to minimize its effect on performance. The practical results obtained from the design implement actions are shown in this paper.