Patent ID: 6121693
Filing Date: 2000-09-19
Classification: H02J

Abstract:
A power distribution apparatus comprising:a shared power bus;a first plurality of current sharing power supplies, each supply coupled to said shared power bus;a second plurality of powered equipment, each of said powered equipment comprising:a load;a load isolator having an isolator input coupled to said shared power bus, and an isolator output coupled to said load,said load isolator comprising:a load current measurement converting current in said load into a measurement voltage;a comparator comparing said measurement voltage to a threshold voltage, said comparator having an output, said output activated when said measurement voltage exceeds said threshold voltage;a memory activated by said comparator output and producing an activation output for an interval of time;a switch coupled between said isolator input and said isolator output, said switch closed when said activation output is asserted;wherein any one of said first plurality of current sharing power supplies has sufficient capacity to provide power concurrently to all of said second plurality of loads.