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 |
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代理人 |
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主权项 |
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地址 |
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