A Merged Interleaved Flyback PFC Converter with Active Clamp and ZVZCS
نویسندگان
چکیده
The design and analysis of a compact flyback AC to DC power supply is described and simulation results are presented. Of particular interest is merging two interleaved power converters such that the main switch in one converter behaves as the clamp switch of the other while ripple cancellation is accomplished. Also, PFC and ZVZCS are achieved with no extra components. Using these approaches, the total number of active and passive components used and consequently the associated power loss, complexity and cost is reduced, which makes the design appealable for low-power high-volume applications. The proposed circuit converts 110VAC to 230VDC at 2.2A load current with an overall simulated efficiency of around 93%. Keywords—Merged, interleaved, flyback, PFC, active clamp, ZVZCS.
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