Abstract
This paper presents the self-oscillating flyback converter with an integrated flyback-transformer whose auxiliary winding is utilized as the lossless snubber inductor and output-voltage sensing winding. In the conventional flyback converter, the turn-off switching loss caused by high switching frequency leads to low conversion efficiency. The proposed lossless snubber scheme not only reduces the voltage spikes at turn-off interval, but also recycles the energy stored in the leakage inductor to the input source for improving conversion efficiency. Considering further simplification, the lossless snubber inductor and the output-voltage sensing winding can be combined together as a single winding. A prototype circuit of the 15W self-oscillating flyback converter with lossless snubber circuit and output-voltage sensing circuit is built to verify the performances, such as the voltage stress on the switch, the conversion efficiency, and the load regulation.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
