OVERCURRENT PROTECTION METHOD, CIRCUIT AND INTEGRATED CIRCUIT
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United States of America Patent
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Issued Date -
Dec 25, 2014
app pub date -
Jun 24, 2014
filing date -
Jun 24, 2013
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Disclosed is an overcurrent protection method and circuit and an integrated circuit. The overcurrent protection circuit includes an output circuit, an overcurrent sampling circuit and an overcurrent protection loop circuit. The overcurrent sampling circuit is configured to perform overcurrent sampling on the output circuit, and to pass the sampled current to the overcurrent protection loop circuit, and the overcurrent protection loop circuit is configured to perform direct current level shifting on the sampled current to result in a control current, and to provide a negative feedback to the output current of the output circuit based on the control current.
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