LOW POWER START-UP CIRCUIT
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United States of America Patent
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Issued Date -
Mar 15, 2012
app pub date -
Sep 10, 2010
filing date -
Sep 10, 2010
priority date (Note) -
Abandoned
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Abstract
A start-up circuit includes an energy storage device operable to selectively power a load. A switch controls a flow of current from the energy storage device to the load. The switch preventing a flow of current to the load in an OFF state. A voltage comparison device is configured to turn the switch ON to permit a flow of current to the load in response to a charge of the energy storage device exceeding a predefined voltage threshold. The voltage comparison device maintains the switch in an OFF state in response to the charge of the energy storage device being below the predefined voltage threshold.
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