Multi-module current sharing scheme
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United States of America Patent
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Jun 8, 2010
Grant Date -
Oct 2, 2008
app pub date -
Jul 10, 2007
filing date -
Mar 29, 2007
priority date (Note) -
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Abstract
A circuit provides multi-module current sharing for circuit modules. The circuit includes an error amplifier having a negative and a positive input and an output. The positive input of the error amplifier is connected to a reference voltage. A buffered differential amplifier has an output connected to the negative input of the error amplifier and a positive and a negative input. A correction current is sourced to the negative input of the buffered differential amplifier. A resistor connected to the negative input of the buffered differential amplifier has a value that controls the amount of current correction applied to the negative input of the buffer differential amplifier by the current correction source.
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