Electric power conversion systems – Current conversion – Having plural converters for single conversion
Patent
1990-06-28
1992-04-14
Sterrett, Jeffrey
Electric power conversion systems
Current conversion
Having plural converters for single conversion
363 37, 378101, H02M 500
Patent
active
051053519
ABSTRACT:
An output voltage of an A.C. power source is input to an frequency converter and the frequency thereof is increased. A plurality of high voltage transformers of small capacity each of which has a secondary winding of a small number of turns and which are connectetd in parallel with one another are connected to an output terminal of the frequency converter. Outputs of the high voltage transformers are respectively connected to high voltage rectifier circuits. Outputs of the high voltage rectifier circuits are serialy coupled, the output voltages thereof are added together, and the addition result is applied to an X-ray tube. Combinations of the high voltage transformers and the high voltage rectifier circuits are molded into units one or a preset number at a time with solid insulating material including gel insulating material.
REFERENCES:
patent: 3747037 (1973-07-01), Earing
patent: 3792338 (1974-02-01), Barthelemy
patent: 4317039 (1982-02-01), Romandi
patent: 4338657 (1982-07-01), Lisini et al.
patent: 4533987 (1985-08-01), Tomofuji
patent: 4545005 (1985-10-01), Mudde
patent: 4807105 (1989-02-01), Varjasi et al.
Harada Toyoshige
Tanbo Kenichi
Kabushiki Kaisha Toshiba
Sterrett Jeffrey
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