Power Integrated Circuit Design of 110V AC/5V DC Transformerless Converter
碩士 === 國立交通大學 === 電機與控制工程系 === 90 === A design of 110V AC/5V DC transformerless converter power integrated circuit is proposed. Three design scheme of converter are proposed and their structures are categorized into two types. For the typeⅠdesign, only one stage of AC/DC converter is employed. This...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2002
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| Online Access: | http://ndltd.ncl.edu.tw/handle/43029311838957060170 |
| Summary: | 碩士 === 國立交通大學 === 電機與控制工程系 === 90 === A design of 110V AC/5V DC transformerless converter power integrated circuit is proposed. Three design scheme of converter are proposed and their structures are categorized into two types. For the typeⅠdesign, only one stage of AC/DC converter is employed. This scheme is simpler, but the output voltage ripple is wholly the same as the traditional full-wave rectifier. For the typeⅡdesign, two scheme are proposed. The first scheme contains only one stage too. The output voltage ripple is reduced a lot. However, the power dissipation is very large (7.5W). The second scheme add one more DC/DC converter to reduce the power dissipation and to improve the output voltage ripple. The design uses no transformer and inductance. The output rating 5V+10%~ 5V-10%and 100mA.The power transfer efficiency is 40%.
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