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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机译:制备ac ac ac转基因植物或其部分,c ac cu ac转基因植物,植物或其部分的种子,分子的分离核酸的方法。核酸构建体,载体,宿主c,制备polipept,抗体,植物组织,繁殖材料,收获的材料或植物的方法化合物的鉴定方法,农业组合物的生产方法,组合物,植物转基因产物的制备方法,以及编码SRP的分子核酸的用途