G - Physics – 06 – F
Patent
G - Physics
06
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G06F 1/26 (2006.01) H02J 3/18 (2006.01) H02J 3/26 (2006.01) H02M 7/04 (2006.01) H02M 7/23 (2006.01) H02M 1/00 (2006.01)
Patent
CA 2068864
A balanced three phase AC power supply (12) for a computer system having unbalanced, variable DC loads (34). AC to DC converters (18a-c) utilize high power factor correction circuitry to impose a sinusoidal current loading waveshape (23) substantially in phase with the AC voltage (24). Each AC to DC converter outputs equal DC voltages maintaining a balanced loading on the AC power source. The design and organization of the power supply components make the supply fault tolerant when one phase (~A, ~B, ~C) of AC power or one AC to DC converter is lost due to malfunction or servicing.
L'invention est une alimentation triphasée symétrique (12) pour ordinateur à charges asymétriques variables à courant continu (34). Des convertisseurs alternatif-continu (18a-c) utilisent des circuits de correction à facteur de puissance élevé pour imposer une forme d'onde sinusoïdale (23) substantiellement en phase avec la tension alternative (24). Les convertisseurs alternatif-continu produisent des tensions de sortie continues égales qui maintiennent la symétrie de la charge de la source d'alimentation alternative. La construction et l'organisation des éléments de l'alimentation font que celle-ci est peu sensible aux défaillances quand l'une de ses phases (~A,~B, ~C) ou l'un des convertisseurs alternatif-continu est perdu par suite d'une panne ou d'une interruption de service.
Neilson Joseph S.
Tighe Donald J.
Smart & Biggar
Tandem Computers Incorporated
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