SYSTEM AND METHOD FOR PROVIDING OVERVOLTAGE PROTECTION
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United States of America Patent
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Issued Date -
Nov 17, 2011
app pub date -
May 12, 2010
filing date -
May 12, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An overvoltage protection circuit includes a voltage clamping device having a predefined voltage threshold at which it starts conducting to prevent an overvoltage condition. A switch is operable to control a flow of current from a power source to the voltage clamping device. The switch is OFF to prevent a flow of current from the power source to the voltage clamping device in response to a voltage of the power source being less than the voltage threshold such that the voltage clamping device does not exhibit a leakage current. The switch is ON to permit a flow of current from the power source to the voltage clamping device in response to the voltage of the power source being equal to or greater than the voltage threshold.
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