A conventional Flyback converter's synchronous rectification switch is controlled from the primary side via opto-isolators; introducing propagation delay. A new control concept is presented here that eliminates the need for opto-isolators, communicating instead through the coupled inductor to assist more precise soft-switching control at much higher frequencies. As a precursor to a 1-MHz GaN demonstrator, an initial 100-kHz prototype has been built to prove the feasibility of the concept.
|Title of host publication||Applied Power Electronics Conference and Exposition (APEC), 2016 IEEE|
|Publisher||Institute of Electrical and Electronics Engineers|
|Publication status||Published - 12 May 2016|
|Event||IEEE Applied Power Electronics Conference and Exposition - Long Beach, CA, United States|
Duration: 20 Mar 2016 → 24 Mar 2016
|Conference||IEEE Applied Power Electronics Conference and Exposition|
|City||Long Beach, CA|
|Period||20/03/16 → 24/03/16|
Connaughton, A., Krischan, K., Leong, K. K., & Mütze, A. (2016). New control concept for soft-switching Flyback converters with very high switching frequency. In Applied Power Electronics Conference and Exposition (APEC), 2016 IEEE (pp. 355-361). Institute of Electrical and Electronics Engineers.