Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Patent
1982-09-28
1984-04-17
Shoop, William M.
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
363134, H02M 3335
Patent
active
044438400
ABSTRACT:
A direct voltage-direct voltage converter including: a transformer having at least one primary winding and at least one secondary winding; first and second electronic switches connected to the primary winding; a rectifier unit connecting the secondary winding to a load; and switch control circuitry connected to the electronic switches for closing the switches periodically and in alternation at a selected repetition rate in response to pulses produced by a clock pulse generator, for applying a direct voltage across the primary winding and periodically reversing the polarity of that direct voltage across the primary winding. The switch control circuitry contains elements for producing a gap period between the turn-off of one switch and the turn-on of the other switch, during which both switches are open and the primary winding is disconnected from the direct voltage, the producing elements providing a gap period duration selected to correspond to the time required for voltage in the secondary winding to automatically reverse polarity at the inherent resonant frequency of the transformer and rectifier unit.
REFERENCES:
patent: 3490027 (1970-01-01), Galetto et al.
"Stromversorgung von Satelliten-Wanderfeldrohren Hoher Leistung", von Gunter Palz, Siemens Zeitschrift 48 (pp. 840-846).
Geissler Klaus H.
Hubner Karl-Heinz
Licentia Patent-Verwaltungs-GmbH
Shoop William M.
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