Power converter with reduced common mode voltage

Details Power converter with reduced common mode voltage Power converter with reduced common mode voltage

2007-09-25

2007-09-25

Laxton, Gary L (Department: 2838)

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

C363S035000, C363S037000

Reexamination Certificate

active

11365234

ABSTRACT:
An improved power converter that produces reduced-levels of common-mode voltages, or even entirely eliminates such voltages, is disclosed herein, along with a method of reducing common-mode voltages. In at least some embodiments, the improved power converter is equipped with common-mode filter inductors and a link coupling input and output ports of the power converter with one another to communicate a ground point associated with the input ports of the converter (and the source) to the load. Further, in at least some embodiments, the method includes providing common mode filter inductors as part of the converter, where the inductors are connected at least indirectly to at least one of a rectifier and an inverter of the converter, and communicating a grounded neutral from input ports of the converter to output ports of the converter by way of at least one additional linkage.

REFERENCES:
patent: 5315497 (1994-05-01), Severinsky
patent: 5661390 (1997-08-01), Lipo et al.
patent: 5905642 (1999-05-01), Hammond
patent: 6154378 (2000-11-01), Peterson et al.
patent: 6377479 (2002-04-01), Ayano et al.
patent: 6617814 (2003-09-01), Wu et al.
patent: 6867564 (2005-03-01), Wu et al.
patent: 2006/0227483 (2006-10-01), Akagi

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