Electricity: power supply or regulation systems – In shunt with source or load – Using choke and switch across source
Reexamination Certificate
2006-03-06
2008-08-26
Nguyen, Matthew V (Department: 2838)
Electricity: power supply or regulation systems
In shunt with source or load
Using choke and switch across source
Reexamination Certificate
active
07417409
ABSTRACT:
Embodiments of the invention provide methods and apparatuses for concurrently eliminating or substantially reducing two or more switching losses in an inverter switching circuit. Embodiments of the invention concurrently reduce multiple types of switching losses under hard switching mode and soft switching mode for active switching devices and diodes. In one embodiment of the invention, the voltage across a switching device is substantially reduced during switch turn-off and/or turn-on time, and also maintained at a substantially reduced level throughout some or all of the tail current loss time of the switching device. Other methods and apparatuses are also described.
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Blakely , Sokoloff, Taylor & Zafman LLP
Nguyen Matthew V
One More Time LLC
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