Power supply system, for segmented loads, having phantom redundancy
First Claim
1. A power supply system which is comprised of:
- multiple sets of power supplies;
each set of power supplies having (a) an output terminal for furnishing load current at a certain voltage, (b) a respective load connected to said output terminal, and (c) a respective current-sharing circuit;
whereina switching means is provided which selectively interconnects, and disconnects, the respective current-sharing circuits of said sets such that said power supplies of all connected sets furnish equalized load currents; and
variable resistors are provided which selectively interconnect the respective output terminals of said sets to each other through a conductance that increases from zero mhos by a predetermined small step and thereafter progressively increases to a short circuit, and which selectively disconnects the respective output terminals from each other through an oppositely varying conductance.
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Accused Products
Abstract
A power supply system for segmented loads, and having phantom redundancy, is comprised of multiple sets of power supplies, with each set having an output terminal for furnishing load current at a certain voltage. A respective load is connected to the output terminal of each set, and each set also has a current-sharing circuit by which the load currents furnished from the supplies within a set are equalized. Further, all of the supplies from all the loads combined, minus any one supply, have a total current-furnishing capacity which meets the current requirements of all of the loads, but no set of supplies for any one load includes an extra or redundant supply. Also, switches are provided which selectively interconnect, and disconnect, the respecitve current-sharing circuits of the power supply sets such that the supplies of all connected sets furnish equalized load currents. In addition, variable resistors are provided which selectively interconnect the respective output terminals of the power supply sets through a conductance that increases from zero by a predetermined small step and thereafter progressively increases to a short circuit, and which selectively disconnects the respective output terminals though an oppositely varying conductance.
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Citations
15 Claims
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1. A power supply system which is comprised of:
- multiple sets of power supplies;
each set of power supplies having (a) an output terminal for furnishing load current at a certain voltage, (b) a respective load connected to said output terminal, and (c) a respective current-sharing circuit;
whereina switching means is provided which selectively interconnects, and disconnects, the respective current-sharing circuits of said sets such that said power supplies of all connected sets furnish equalized load currents; and variable resistors are provided which selectively interconnect the respective output terminals of said sets to each other through a conductance that increases from zero mhos by a predetermined small step and thereafter progressively increases to a short circuit, and which selectively disconnects the respective output terminals from each other through an oppositely varying conductance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- multiple sets of power supplies;
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11. A power supply system which is comprised of:
- multiple sets of power supplies;
each set having an output terminal for furnishing load current at a certain voltage; and
a respective load connected to the output terminal of each set;
whereina variable resistor means is provided which selectively interconnects the respective output terminals of said sets to each other;
said variable resistor means including a means for varying the conductance between any two of said output terminals such that the conductance increases from zero mhos by a predetermined small step and thereafter gets progressively larger, and vice versa. - View Dependent Claims (12, 13, 14, 15)
- multiple sets of power supplies;
Specification