商用周波の共振で直流高電圧を発生する単相整流回路

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  • A Novel Single-Phase Rectifier Circuit to Generate High DC Voltage by LC Resonance in Commercial Frequency
  • ショウヨウ シュウハ ノ キョウシン デ チョクリュウ コウデンアツ オ ハッセイスル タンソウ セイリュウ カイロ

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For small capacity rectifier circuits such as those for consumer electronics and appliances, capacitor input type rectifier circuits are generally used. Consequently, various harmonics generated within the power system become a serious problem. Various studies to improve these effects have been presented so far. However, most of these employ switching devices, such as FETs and the like. The absence of switching devices makes systems more tolerant to over-load, and brings low radio noise benefits. The authors had proposed a power factor correction scheme using a LC resonance in commercial frequency without switching devices. This method makes a sinusoidal wave by widening conduction period using the current resonance in commercial frequency. It is found that the output high voltage can be obtained easily by means of LC resonance in this PFC circuit, whose dc output voltage becomes even ten times ac input voltage and the like. In this paper, the results are reported and confirmed by the theoretical and experimental implementations.

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