Current source with supply current minimizing

Details Current source with supply current minimizing Current source with supply current minimizing

1994-02-03

1996-12-17

Tso, Edward H.

Electricity: power supply or regulation systems

Self-regulating

Using a three or more terminal semiconductive device as the...

307 13, 307 43, G05F 316, G05F 320

Patent

active

055857124

ABSTRACT:
A set of series connected power supplies are progressively connected to a load as the voltage to the load increases. Starting with a first voltage power supply, as the load voltage increases at or to the first voltage level, a switch connects the next successive power supply in series with the first power supply and to the load. As the load voltage increases progressively approaching each successively connected power supply in the set of series connected power supplies, the load is switched to the next series connected power supply increasing the voltage and current available to the load. As the load voltage decreases progressively from the highest series connected voltage to the voltage of the next lower series connected power supply voltage, the load is switched to that next lower series connected power supply. In operation, a first power supply is connected in series to a plurality of power supplies. A switch connects the first power supply to a load. As the voltage of that load increases reaching the first power supply level, the switch connects in the next series connected power supply to the load increasing the voltage and the current available to the load. As the voltage increases at the load to the voltage level of the next series connected power supply, the next series connected power supply is switched to the load increasing the voltage and the current available to the load. This switching process continues till the highest voltage level of the series connected power supplies is reached by the load. As the voltage at the load decreases, falling through each next decreasing level, from each successively lower power supply is disconnected.

REFERENCES:
patent: 4963814 (1990-10-01), Parks et al.
patent: 5182462 (1993-01-01), Wright
patent: 5214311 (1993-05-01), Kageyama et al.
patent: 5254878 (1993-10-01), Olsen

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