Power supply apparatus for arc-utilizing apparatuses

Electric power conversion systems – Current conversion – Having plural converters for single conversion

Reexamination Certificate

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C363S065000, C219S130320

Reexamination Certificate

active

07457139

ABSTRACT:
A power supply apparatus for use with arc-utilizing apparatuses includes a plurality of power supply blocks of the same capacity. Each power supply block includes an input-side rectifying circuit, an inverter, a transformer, and an output-side rectifying circuit. The inverter is controlled by a control circuit in such a manner that high-frequency current flowing the inverter or current flowing through the output-side rectifying circuit can correspond to a reference signal provided by a reference signal generator. The outputs of the output-side rectifying circuits of the power supply blocks are connected in parallel with each other. The values of the reference signals generated by the reference signal generators are made always equal by the action of equipotential lines.

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patent: 6269015 (2001-07-01), Ikeda et al.
patent: 6847008 (2005-01-01), Myers et al.
patent: 6940040 (2005-09-01), Houston et al.
patent: 2203512 (1995-07-01), None
patent: 08-001350 (1996-01-01), None
Notification of the First Office Action issued by The Patent Office Of The People's Republic Of China for Application No. 20061007558.6 dated Apr. 25, 2008.

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