Electric power conversion systems – Current conversion – Including an a.c.-d.c.-a.c. converter
Reexamination Certificate
2008-01-01
2008-01-01
Easthom, Karl (Department: 2838)
Electric power conversion systems
Current conversion
Including an a.c.-d.c.-a.c. converter
C363S040000, C363S021080, C363S131000
Reexamination Certificate
active
07315462
ABSTRACT:
A stabilized power supply for X-ray tubes having a first rectifier circuit, an inverter circuit comprising main switches, a transformer, a second rectifier circuit an oscillation circuit and an inverter circuit. The power supply includes an auxiliary circuit that can be, driven and is parallel-connected to the oscillation circuit. The auxiliary circuit duplicates changeover switching times of the switches of the inverter in order to limit an overlapping phenomenon that occurs for these switches during the changeover switching operations.
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Kheronsky et al., “Overcoming the limitations of soft=switched, high-frequency, high-power isolated DC-DC converter”, IEEE Power Electronics.
Y. Khersonsky et al., “Overcoming the Limitations of Soft-Switched, High-Frequency, High-Power Isolated Dc-DC Converter,” 2001 IEEE, pp. 866-871.
Kheronsky et al., “Overcoming the limitations of soft=switched, high-frequency, high-power isolated DC-DC converter”, IEEE Power Electronics Specialists Conf. PESC 2001, Conf. Proc. Vancouver, CA Jun. 17-21, 2001, Annual Power Electronics Specialists Conf., IEEE, vol. 1 of 4, conf. 32, Jun. 17, 2001, pp. 856-871.
Cantor & Colburn LLP
Easthom Karl
GE Medical Systems Global Technology Company LLC
Ramadan Ramy
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