Power system with redundant power supply apparatus

Details Power system with redundant power supply apparatus Power system with redundant power supply apparatus

2006-12-19

2006-12-19

Berhane, Adolf (Department: 2838)

Electric power conversion systems

Current conversion

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

Reexamination Certificate

active

07151678

ABSTRACT:
A power system (100) includes power conversion apparatus (110) coupled to load apparatus (120) having at least one load circuit (122,124). The power conversion apparatus includes: a first input (102) for receiving an AC signal; a second input (104) for receiving a DC signal; and a first number of power supply circuits (112) each including an AC conversion circuit (210, 240, 250) for generating an output signal based on the AC signal; a revert circuit (270) coupled to the AC conversion circuit for generating the output signal based on the DC signal, the revert circuit including a battery charger (274), wherein each of the battery chargers is coupled in common at the second input and is configured with a corresponding predetermined capacity that causes at least a portion of the DC signal to be provided by at least a portion of the battery chargers.

REFERENCES:
patent: 5229650 (1993-07-01), Kita et al.
patent: 5982652 (1999-11-01), Simonelli et al.
patent: 6122181 (2000-09-01), Oughton, Jr.
patent: 6630751 (2003-10-01), Curtis et al.
Marty Brown; Practical Switching Power Supply Design, Motorola, Series in Solid State Electronics, 12.4 A60W, Off-Line Flyback converter with Battery Backup, pp. 226-234.

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