发明名称 |
COMMUTATION CELL AND COMPENSATION CIRCUIT THEREFOR |
摘要 |
The present disclosure relates to a commutation cell and to a compensation circuit for limiting overvoltage across the power electronic switch of the commutation cell and for limiting a recovery current in a freewheel diode of the commutation cell. The power electronic switch has a parasitic emitter inductance. A variable gain compensation circuit generates a feedback from a voltage generated across the parasitic inductance of the emitter of the power switch at turn-on or turn-off of the power electronic switch. The compensation circuit provides the feedback to a control of the power electronic switch to reduce the voltage generated on the parasitic emitter inductance. A power converter including the commutation cell with the compensation circuit is also disclosed. |
申请公布号 |
EP2982038(A1) |
申请公布日期 |
2016.02.10 |
申请号 |
EP20140779957 |
申请日期 |
2014.04.04 |
申请人 |
TM4 INC. |
发明人 |
CYR, JEAN-MARC;EL YACOUBI, MAALAININE;FLEURY, PASCAL;AMAR, MOHAMMED |
分类号 |
H03K17/08;H02M1/32;H03K17/082;H03K17/16;H03K17/567 |
主分类号 |
H03K17/08 |
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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