OVERCURRENT DETECTION CIRCUIT AND METHOD, LOAD SWITCH, AND PORTABLE DEVICE
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United States of America Patent
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Issued Date -
Aug 27, 2015
app pub date -
Feb 26, 2015
filing date -
Feb 27, 2014
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Abstract
The present invention provides an overcurrent detection circuit, an overcurrent detection method, a load circuit, and a portable device. The overcurrent detection circuit comprises: a first overcurrent detection sub-circuit and a second overcurrent detection sub-circuit; wherein: the first overcurrent detection sub-circuit is configured to perform overcurrent detection for a switch circuit when a voltage of an output terminal of the switch circuit is greater than or equal to a preset threshold; and the second overcurrent detection sub-circuit is configured to perform overcurrent detection for the switch circuit when the voltage of the output terminal of the switch circuit is less than the preset threshold.
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