Electric power conversion systems – Current conversion – Including an a.c.-d.c.-a.c. converter
Reexamination Certificate
2004-09-13
2009-02-24
Ullah, Akm E (Department: 2838)
Electric power conversion systems
Current conversion
Including an a.c.-d.c.-a.c. converter
C307S424000, C363S159000
Reexamination Certificate
active
07495937
ABSTRACT:
A PWM cycloconverter easily capable of improving an input current waveform and regenerating energy of a snubber into a power source is provided.A PWM cycloconverter includes a PWM converter connected to a DC voltage system. An output unit of the PWM converter is connected to a place before an input filter of the PWM cycloconverter to keep down resonance of the input filter.
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Hara Hidenori
Kang Junkoo
Yamada Kenji
Yamamoto Eiji
Diao M'Baye
Kabushiki Kaisha Yaskawa Denki
Sughrue & Mion, PLLC
Ullah Akm E
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