发明名称 Power converter.
摘要 <p>A power converter comprises a transformer (TR) which converts an ac power source voltage (e1) into a predetermined ac voltage (e2), a pulse-width modulation converter (CON) connected to the secondary side of the transformer (TR) to convert an ac current into dc current and a control circuit (CTR) which turns on and off a switching element constituting the converter (CON). A field distortion detector (DT) detects a quantity of a state related to the field distortion of the transformer (TR) and a compensation circuit (DCC1 or DCC2) supplies the detected value to the control circuit (CTR) so as to generate a dc component corresponding to the detected state quantity signal indicative of the field distortion on the ac side of the pulse-width modulation converter (CON).</p>
申请公布号 EP0370388(A2) 申请公布日期 1990.05.30
申请号 EP19890121209 申请日期 1989.11.16
申请人 HITACHI, LTD. 发明人 NAKATA, KIYOSHI;TERUNUMA, MUTSUHIRO;KIMURA, AKIRA;NAKAMURA, KIYOSHI;ISHIDA, TOSHIHIKO
分类号 H02M7/06;H02M7/12;H02M7/155 主分类号 H02M7/06
代理机构 代理人
主权项
地址