CIRCUIT ARRENGEMENT AND METHOD FOR MINIMIZING LOSS OF POWER SEMICONDUCTORS AND HIGH VOLTAGE TRANSFORMER USING SERIAL RESONANCE INVERTERS IN HIGH FREQUENCY X-RAY GENERATORS

CIRCUIT ARRENGEMENT AND METHOD FOR MINIMIZING LOSS OF POWER SEMICONDUCTORS AND HIGH VOLTAGE TRANSFORMER USING SERIAL RESONANCE INVERTERS IN HIGH FREQUENCY X-RAY GENERATORS

A thyristor-based switching over unit has specially selected and controlled thyristors for switching the tapping on the primary side of a high voltage transformer. A supplementary control unit has programmable digital and analogous elements defining the direct control signals of insulated-gate bipol...

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Bibliographische Detailangaben
Hauptverfasser: KARPATI ATTILA DR, GAJASZ ZOLTAN DR, SZALAI GYOERGY, BAKOS ADAM, HOLLOSI ATTILA, SZABO MIHALY
Format: Patent
Sprache:eng
Schlagworte:
APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS
CONTROL OR REGULATION THEREOF
CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
GENERATION
X-RAY TECHNIQUE
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Beschreibung
Zusammenfassung:A thyristor-based switching over unit has specially selected and controlled thyristors for switching the tapping on the primary side of a high voltage transformer. A supplementary control unit has programmable digital and analogous elements defining the direct control signals of insulated-gate bipolar transistors (IGBTs) of the serial resonant direct current (DC)/alternating current (AC) converter. A loss optimizing effect is respectively held in the programs of the supplementary control unit. The control unit uses output signals of an impulse width generator of two outputs of usual function.