Bypass Control in a DC-to-DC Converter
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United States of America Patent
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Issued Date -
Aug 1, 2013
app pub date -
Jan 25, 2013
filing date -
Jan 27, 2012
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Abstract
The present document relates to switched power supplies. In particular, the present document relates to a method and system for controlling a bypass transistor in a DC-to-DC converter. A power converter configured to convert an input voltage at an input of the power converter into an output voltage at an output of the power converter is described. The power converter comprises a DC-to-DC converter comprising a high side switch; a bypass transistor parallel to the DC-to-DC converter, configured to couple a load at the output of the power converter to the input voltage during an on-state of the bypass transistor; and current sensing means configured to sense a current through the high side switch; wherein the bypass transistor is controlled based at least on the sensed current through the high side switch.
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