Output voltage independent overvoltage protection
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United States of America Patent
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Jun 29, 2010
Grant Date -
May 7, 2009
app pub date -
Nov 6, 2008
filing date -
Nov 7, 2007
priority date (Note) -
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Abstract
One embodiment of the invention includes a power regulation system. The system comprises a power regulator configured to periodically generate a switch signal that regulates a current flow through an inductor to set a magnitude of an output voltage. The system further comprises an overvoltage protection circuit configured to monitor a peak voltage magnitude of the switch signal and to generate an overvoltage indication signal in response to the peak voltage magnitude of the switch signal exceeding a predetermined limit.
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