Apparatus for bi-directional power switching in low voltage vehicle power distribution systems
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United States of America Patent
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Jan 27, 2015
Grant Date -
Dec 20, 2012
app pub date -
Jun 20, 2011
filing date -
Jun 20, 2011
priority date (Note) -
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Abstract
A plurality of modules each including at least a pair of series connected power MOSFETs are configured between a plurality of DC voltage sources, and a plurality output terminals for connection to respective loads, are controlled for selectively applying power to the loads via time delay switching incorporating forward biased intrinsic diodes of the MOSFETs in a given current path during initial application of power to a load, whereby a predetermined period of time after turning on one of the series connected MOSFETs, the associated other MOSFET is turned on to shunt its intrinsic diode for reducing the resistance in the current path to maximize current flow. The configuration of the plurality of power MOSFETs is also controlled for selectively providing bi-directional current flow between said plurality of DC voltage sources.
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