Electronic device and charging circuit thereof
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United States of America Patent
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Jan 5, 2016
Grant Date -
Oct 2, 2014
app pub date -
Mar 30, 2014
filing date -
Mar 29, 2013
priority date (Note) -
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Abstract
A charging circuit is used to charge a rechargeable battery. The charging circuit includes a voltage conversion unit and a leakage prevention unit. The voltage conversion unit converts a voltage of a power supply into a charging voltage of the rechargeable battery, and outputs the charging voltage to the leakage prevention unit. When the leakage prevention unit receives the charging voltage, the leakage prevention unit charges the rechargeable battery with the charging voltage. When the leakage prevention unit does not receive the charging voltage, the leakage prevention unit prevents a leakage of the rechargeable battery.
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