发明名称 |
DEVICE AND METHOD OF CONTROLLING A GATE OF A THREE-LEVEL INVERTER |
摘要 |
In a gate control device for self-arc extinction elements (T1) to (T4) and self-arc extinction elements (T5) and (T6) connected in reverse parallel between the respective both terminals of clamp diodes (D5) and (D6), individually, there are provided a PWM circuit (2) that generates conduction control commands (SP) and (SN) , and a gate control circuit (3) including a delay circuit group that generates gate signals (ST1) to (ST6) with respect to the respective self-arc extinction elements on the basis of the respective conduction control commands . The self-arc extinction elements (T3) and (T5) are rendered conductive at the same time under control, and the self-arc extinction elements (T2) and (T6) are rendered conductive at the same time under control. |
申请公布号 |
CA2393506(C) |
申请公布日期 |
2004.12.14 |
申请号 |
CA20022393506 |
申请日期 |
2002.07.15 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
MASUNAGA, HIROSHI;ASAEDA, TAKEAKI |
分类号 |
H02M7/483 |
主分类号 |
H02M7/483 |
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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