System and method for transmitting current sharing information among paralleled power trains
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United States of America Patent
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Apr 3, 2012
Grant Date -
Jun 24, 2010
app pub date -
Dec 19, 2008
filing date -
Dec 19, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
An embodiment of the invention relates to a power control device configured to provide current-sharing control in a power converter including a plurality of power trains. The power control device transmits or receives a synchronization signal on a synchronization node to initiate a time frame that includes a plurality of time slots, and to control a switching activity of a power switch in a respective power train. The power control device further includes a current sharing bus node on which a digital current-sharing signal is transmitted in a designated time slot. The power control device determines a load current of the power converter and controls a power train current employing current data received on the current-sharing bus node from another power control device. The power control device may be a master power control device that transmits the synchronization signal on the synchronization node.
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