| DC-Modulated PFC Buck-Type AC/AC Converter for Light Dimming |
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| 引用本文： | 罗方林,叶虹. DC-Modulated PFC Buck-Type AC/AC Converter for Light Dimming[J]. 电工电能新技术, 2007, 26(2): 6-11 |
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| 作者姓名： | 罗方林 叶虹 |
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| 作者单位： | 1. 剑桥大学
2. 南洋理工大学 |
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| 摘 要： | 1 Introduction Dimmers are very widely applied in theatres,cinemas,auditoriums and signal systems.They are usually supplied by single-stage AC/AC converters in thepast with voltage regulation technique.Light dimmingrequests the power supply voltage fromth…
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| 关 键 词： | 直流电 交流电 节电措施 灯光亮度 |
| 文章编号： | 1003-3076(2007)02-0006-05 |
| 修稿时间： | 2007-01-18 |
DC-Modulated PFC Buck-Type AC/AC Converter for Light Dimming |
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| Fang Lin LUO,Hong YE. DC-Modulated PFC Buck-Type AC/AC Converter for Light Dimming[J]. Advanced Technology of Electrical Engineering and Energy, 2007, 26(2): 6-11 |
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| Authors: | Fang Lin LUO Hong YE |
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| Abstract: | Dimmers are very widely applied in theatres, cinemas, dancing-parties, auditoriums and signal systems. They are usually supplied by single-stage AC/AC converters in the past with voltage regulation technique with the disadvantages of high total harmonic distortion, low power factor and poor power transfer efficiency. This paper introduces a novel method-DC-modulation that implements DC/DC conversion technology into AC/AC converters. The DC-modulated single-stage PFC AC/AC converters effectively improved the power factor up to 0.999 and the power transfer efficiency up to 97.8 %. The experimental results verified our design and calculation. This technique will be widely used in light dimming and other industrial applications. |
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| Keywords: | power factor correction DC-modulated AC/AC converters light dimming total harmonic distortion |
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