Power management topologies to control power between a DC power source and one or more batteries to a system load
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United States of America Patent
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Sep 7, 2010
Grant Date -
Sep 25, 2008
app pub date -
Mar 25, 2008
filing date -
Sep 21, 2000
priority date (Note) -
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Abstract
A power supply topology according to one embodiment includes a first path coupled to a controllable DC power source, a second path coupled to a rechargeable battery, and a third path coupled to a system load, the three paths coupled to a common node. The topology may further include a unidirectional switch coupled to the first path and a selectively unidirectional switch coupled to the second path. The topology may further include a power management control circuit including a wake up circuit having a comparison circuit and an output decision circuit. Of course, many alternatives, variations, and modifications are possible without departing from this embodiment.
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