Process for controlling a power supply which supplies power to a

Details Process for controlling a power supply which supplies power to a Process for controlling a power supply which supplies power to a

1992-12-04

1995-11-28

Wong, Peter S.

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

363 97, 323903, 96 23, 95 6, H02M 3335

Patent

active

054713773

ABSTRACT:
A filter short circuit is detected when the primary voltage of the high-voltage transformer drops below a specified minimum value and does not rise above the specified minimum value during a specified delay period and a filter current is greater than a specified minimum current. No current is drawn from the external current supply for a variable time delay when a filter short circuit is detected. A filter short circuit count is incremented when a filter short circuit is detected. When the count exceeds a specified, variable limit within a specified, variable time span, the indirect converter is disconnected.

REFERENCES:
patent: 4432061 (1984-02-01), Herklotz et al.
patent: 4605424 (1986-08-01), Johnston
patent: 4670829 (1987-06-01), Dallhammer et al.
patent: 4779182 (1988-10-01), Mickal et al.
patent: 4873620 (1989-10-01), Neulinger et al.
Dubbel, Taschenbuch Fur Den Maschinenbau, Springer Verlag, 1986, 15th Edition, W. Beitz et al., pp. 1201-1202.

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