Development of High Efficiency DC Power Supply with PFC applied avalanche type FRD

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  • アバランシェ耐量を有するFRDを使用したPFC付き高効率直流電源の開発
  • アバランシェ タイリョウ オ ユウスル FRD オ シヨウ シタ PFC ツキ コウコウリツ チョクリュウ デンゲン ノ カイハツ

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In order to prevent global warming caused by carbon dioxide (CO2), several improvements of efficency are requested from the viewpoint of energy conservation for products in the power electronics field. One of methods to improve the efficency of DC power supply with PFC (Power Factor Correction) is to decrease the power losses of FRD (Fast Recovery Diode). In this paper, we show the effect of FRD with high avalanche capability in a real machine of 3kW output power which has the secondary rectifier and PFC circuit, and the remarkable improvement of power losses is achieved in that real machine.

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