高周波空心トランスを用いたコッククロフト・ワルトン型高圧直流電源の開発

概要

論文の詳細を見る
A Cockcroft-Walton (CW) type high-voltage DC generator is widely used for the electron processing system (EPS) which is applied for industrial purposes, such as radiation modification of polymers, medical product sterilization, and so on. The DC generator composes of the capacitors and diodes connected as cascade, and a step-up transformer.A new type high-voltage DC generator with RF air-core transformer used as the step-up transformer has been developed. The design concept of this air-core transformer, which is operated on the resonance condition between the inductance of the secondary coil and the stray capacitance of CW circuit, has been shown and the optimum coil structure has been proposed. Adapting the RF air-core transformer to DC300kV 100mA small CW circuit, the excellent performances have been successfully demonstrated. In this new CW circuit, it results in downsizing of the capacitors to operated at the higher frequency than the conventional one, and the approximately 40% reduction of the volume has been shown in the typically DC1MV 100mA generator.
社団法人電気学会の論文
2006-03-01