Electric power conversion systems – Current conversion – Including automatic or integral protection means
Reexamination Certificate
2005-10-25
2005-10-25
Laxton, Gary L (Department: 2838)
Electric power conversion systems
Current conversion
Including automatic or integral protection means
Reexamination Certificate
active
06958923
ABSTRACT:
The invention relates to a rectifying circuit comprising a bridge connection with RC protected thyristors, a direct voltage circuit with capacitance and a charging circuit containing a diode (3) or a corresponding component for charging the capacitance of the direct voltage circuit. According to the invention, a resistance, which comprises one or more resistors (4), of the RC protection of the thyristors is located in the charging circuit.
REFERENCES:
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patent: 9216662.8 (1993-03-01), None
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patent: 19710371 (1998-09-01), None
patent: 02001238459 (2001-08-01), None
Subhashish Battacharya et al., Power Electronics, Drives and Energy Systems for Industrial Growth 1996; Active Filer Solutions For Utility Interface of Industrial Loads; page(s) 1078-1084 vol. 2, no month.
ABB Oy
Dykema Gossett PLLC
Laxton Gary L
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