Redundant power mixing element with fault detection for DC-to-DC

Details Redundant power mixing element with fault detection for DC-to-DC Redundant power mixing element with fault detection for DC-to-DC

1994-06-30

1996-01-30

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Voltage regulator protective circuits

363 65, 363 89, H02J 104, H02H 710

Patent

active

054885310

ABSTRACT:
A power mixing apparatus for mixing current from a first and a second power rail includes a first enabling circuit to provide a first enabling signal, a second enabling circuit to provide a second enabling signal, a first inrush limiter to output a first current in response to the first enabling signal, a second inrush limiter to output a second current in response to the second enabling signal, a first open-circuiting circuit to decouple the first enabling circuit from the first inrush limiter when the first open-circuiting circuit is open-circuited, a second open-circuiting circuit to decouple the second enabling circuit from the second inrush limiter when the second open-circuiting circuit is open-circuited, a first isolation circuit to isolate the first inrush limiter from the second current, a second isolation circuit to isolate the second inrush limiter from the first current, and a direct-current converter to convert the first and the second current in response to the first enabling signal and in response to the second enabling signal.

REFERENCES:
patent: 3191095 (1965-06-01), Hefti
patent: 5019717 (1991-05-01), McCurry et al.

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