发明名称 |
IGBT-controlled thyristor AC/DC converter |
摘要 |
A hybrid diode/thyristor AC/DC converter includes a thyristor bridge (21) poled oppositely to a diode bridge (13), current through the thyristor bridge being controlled by IGBTs (30, 31). A thyristor turn-off circuit (40-42, 45-47) is responsive to turn-off of the IGBT to reverse bias the thyristors, thereby causing them to turn off. The thyristors and IGBTs are controlled (50) in response to voltage (55-57) of and current flowing (51-53) in the AC mains so as to cause the current flowing to or from the AC mains to be more nearly sinusoidal. The hybrid bridge handles application of regenerative power to the AC mains.
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申请公布号 |
US6108223(A) |
申请公布日期 |
2000.08.22 |
申请号 |
US19990427470 |
申请日期 |
1999.10.26 |
申请人 |
OTIS ELEVATOR COMPANY |
发明人 |
JULIAN, ALEXANDER L.;ORITI, GIOVANNA |
分类号 |
H02M7/12;H02M7/162;H02M7/21;H02M7/797;(IPC1-7):H02M7/155 |
主分类号 |
H02M7/12 |
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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