St u d y a n d I m p l e m e n t a t i o n o f H i g h E f f i c i e n c y / H i g h P o w e r F a c t o r F l y b a c k Power C o n v e r t e r
碩士 === 建國科技大學 === 機電光系統研究所 === 93 === This thesis is to study the problem of AC/DC converter power factor dropping and switching-loss tendency with increasing converter's switching frequency. In our experiments, a two-stage,active boost power factor corrector was used to improve the power fact...
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| Format: | Others |
| Language: | zh-TW |
| Online Access: | http://ndltd.ncl.edu.tw/handle/16762965568438695643 |
| Summary: | 碩士 === 建國科技大學 === 機電光系統研究所 === 93 === This thesis is to study the problem of AC/DC converter power factor dropping and switching-loss tendency with increasing converter's switching frequency.
In our experiments, a two-stage,active boost power factor corrector was used to improve the power factor up to 0.999. A flyback converter of nondissipative LC snubber circuit incorporated into the second stage. Our result demonstrated that the overall efficiency could be reached as high as 87% by using this two-stage PFC converter. The design input voltage is 90 to 265Vac , output voltage is 48Vdc , and output power is 100W,respectively.
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