Using pulse width modulation in the control of load sharing between paralleled power supplies
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United States of America Patent
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Jan 2, 2007
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N/A
app pub date -
Mar 21, 2006
filing date -
Oct 25, 2005
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Abstract
A plurality of power supply modules having their outputs coupled in parallel are controlled for load balancing purposes through a direct current bus having filtered pulse width modulation (PWM) signals representative of the power outputs of each of the plurality of power supply modules. A local PWM signal for each of the plurality of power supply modules is filtered to a DC voltage and used to compare with an average power required from each of the plurality of power supply modules.
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