Elimination of recirculation current loss in load-shared...

Details Elimination of recirculation current loss in load-shared... Elimination of recirculation current loss in load-shared...

2006-02-21

2006-02-21

Laxton, Gary L (Department: 2838)

Electrical transmission or interconnection systems

Plural supply circuits or sources

Load current control

C307S024000

Reexamination Certificate

active

07002263

ABSTRACT:
In master-slave current-tracking load-share systems using switching power supplies, a method and apparatus for preventing current recirculation at light-load and no-load operational conditions. The slave power supply is run in a discontinuous mode when load current falls to light-load or no-load state, preventing the slave from sinking current, therefore preventing recirculation from the master to the slave. The slave power supply is run at a lower current level than the master, preventing recirculation from the slave to the master.

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