Converter protection circuit operative to limit and counteract t

Details Converter protection circuit operative to limit and counteract t Converter protection circuit operative to limit and counteract t

1977-11-14

1978-11-28

Shoop, William M.

Electric power conversion systems

Current conversion

Including automatic or integral protection means

363 80, H02M 118

Patent

active

041278941

ABSTRACT:
Primary and secondary currents of a converter transformer in a double-ended converter are continuously monitored to detect the onset of saturation in the magnetic core of the transformer. When the onset condition is detected, the conductive roles of the oppositely phased switching transistors in the converter are reversed to limit and counteract the onset of saturation in the magnetic core of the transformer.

REFERENCES:
patent: 3697855 (1972-10-01), Kernick et al.
patent: 3743916 (1973-07-01), Weischedel et al.
patent: 3859583 (1975-01-01), Reed
patent: 3873903 (1975-03-01), Koetsch et al.

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