Three level inverter

Details Three level inverter Three level inverter

2006-10-24

2006-10-24

Ton, My-Trang Nu (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Gating

Signal transmission integrity or spurious noise override

C363S098000, C363S132000

Reexamination Certificate

active

07126409

ABSTRACT:
The present invention relates to a high efficiency three-level inverter apparatus containing both bipolar and field effect transistors. An embodiment of a modified control scheme is also presented whereby transistors are modulated differently for each quadrant of output voltage-current phase. This embodiment of a modified control scheme allows efficient switching of field effect transistors without additional freewheeling and series diodes.

REFERENCES:
patent: 5361196 (1994-11-01), Tanamachi et al.
patent: 5801939 (1998-09-01), Okazaki
patent: 5910892 (1999-06-01), Lyons et al.
patent: 6072707 (2000-06-01), Hochgraf
patent: 6333569 (2001-12-01), Kim
patent: 6480403 (2002-11-01), Bijlenga
patent: 6707322 (2004-03-01), Lee et al.
patent: 6795323 (2004-09-01), Tanaka et al.

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