A family of coat circuits for SEPIC converters to improve their boost capability is presented.The present coat circuit does not contain any active switches,so the voltage conversion ratio of the presented converters c...A family of coat circuits for SEPIC converters to improve their boost capability is presented.The present coat circuit does not contain any active switches,so the voltage conversion ratio of the presented converters can be enhanced without complicating its gate driver and control circuits.Meanwhile,because of the expansibility of the coat circuit,the number of its basic cells can be adjusted regarding the actual application requirements.Moreover,in comparison with a conventional SEPIC converter,voltage stress on power switch and diodes of the presented topology is lower at the same output voltage,and thus semiconductor components with low on-resistance are chosen to improve conversion efficiency of converter.The operational principle and steady state analysis of the SEPIC converter with one of the proposed coat circuits have been discussed in detail,and a 300W laboratory prototype is implemented to prove the theoretical analysis of presented converter.展开更多
Muscles ripping with efort,Chen Yu kicks off from the ground.Her body sways alarmingly,but then her foot finds its hold five feet off the ground and she’s off:making her way up and across brightly pebbled walls witho...Muscles ripping with efort,Chen Yu kicks off from the ground.Her body sways alarmingly,but then her foot finds its hold five feet off the ground and she’s off:making her way up and across brightly pebbled walls without a harness,over and over,in a montage set to 1990s Mandopop before hopping off and examining the chalk on her manicure in mock despair.展开更多
基金supported in part by the National Natural Science Foundation of China(51707103)in part by Guangxi Key Research and Development Program(2022AB05028).
文摘A family of coat circuits for SEPIC converters to improve their boost capability is presented.The present coat circuit does not contain any active switches,so the voltage conversion ratio of the presented converters can be enhanced without complicating its gate driver and control circuits.Meanwhile,because of the expansibility of the coat circuit,the number of its basic cells can be adjusted regarding the actual application requirements.Moreover,in comparison with a conventional SEPIC converter,voltage stress on power switch and diodes of the presented topology is lower at the same output voltage,and thus semiconductor components with low on-resistance are chosen to improve conversion efficiency of converter.The operational principle and steady state analysis of the SEPIC converter with one of the proposed coat circuits have been discussed in detail,and a 300W laboratory prototype is implemented to prove the theoretical analysis of presented converter.
文摘Muscles ripping with efort,Chen Yu kicks off from the ground.Her body sways alarmingly,but then her foot finds its hold five feet off the ground and she’s off:making her way up and across brightly pebbled walls without a harness,over and over,in a montage set to 1990s Mandopop before hopping off and examining the chalk on her manicure in mock despair.
