Analyzing and Comparing of Variable and Constant Switching Frequency Flyback Dc-Dc Converter
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Date
2019
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Institute of Electrical and Electronics Engineers Inc.
Abstract
Flyback converter, one of the switching power supply circuit with high frequency, is widely used in low power applications due to its cost effectiveness and electrical isolation characteristics. It is known that high frequency causes switching losses and reduces the efficiency of converters especially at low power ratings. Therefore, a flyback DC-DC converter operated with variable switching frequency is studied in this study. The proposed topology is operated with lower frequencies at light load conditions compared to rated output power. The results obtained from the variable switching converter are compared with the results obtained from constant switching frequency flyback topology for the same input/output conditions. It is observed that the flyback converter operated with variable switching frequency is more efficient than the flyback converter operated with constant frequency. © 2019 IEEE.
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Keywords
Flyback Converter, Green-Mode, Variable Frequency
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Source
Proceedings - 2019 4th International Conference on Power Electronics and their Applications, ICPEA 2019 -- 4th International Conference on Power Electronics and their Applications, ICPEA 2019 -- 25 September 2019 through 27 September 2019 -- Elazig -- 155171