PROTECTION CIRCUIT, CHARGE CONTROL CIRCUIT, AND REVERSE CURRENT PREVENTION METHOD EMPLOYING CHARGE CONTROL CIRCUIT
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United States of America Patent
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Issued Date -
Jul 25, 2013
app pub date -
Jan 24, 2013
filing date -
Jan 25, 2012
priority date (Note) -
Abandoned
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Abstract
A protection circuit to protect from a reverse current, including a current limitation element to connect between an external reference terminal and an internal reference potential to limit the amount of current flowing from the external reference terminal to a power source terminal, when a reversed polarity voltage is applied at the power source terminal; and a conducting element to connect between the power source terminal and the internal reference potential to adjust the internal reference potential to the voltage at the power source terminal, when the reversed polarity voltage is applied.
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