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Power supply system, for segmented loads, having phantom redundancy

  • US 4,760,276 A
  • Filed: 11/09/1987
  • Issued: 07/26/1988
  • Est. Priority Date: 11/09/1987
  • Status: Expired due to Term
First Claim
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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.

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