发明名称 |
Chargers, systems and methods for detecting a power source |
摘要 |
A charger includes a detection pin, a voltage divider, and a comparator. The detection pin can couple the charger to a power source via a first data line. The voltage divider and the comparator are coupled to the detection pin. The voltage divider divides a power voltage provided by the power source and provides a detection voltage at the detection pin. The comparator compares the detection voltage with a predetermined reference voltage and identifies a type of the power source according to the comparing. |
申请公布号 |
US8242742(B2) |
申请公布日期 |
2012.08.14 |
申请号 |
US20080156225 |
申请日期 |
2008.05.30 |
申请人 |
KAO HAN-JUNG;LI GUOXING;KAO YA-TUNG;ZHANG WEI;O2MICRO, INC |
发明人 |
KAO HAN-JUNG;LI GUOXING;KAO YA-TUNG;ZHANG WEI |
分类号 |
H02J7/00 |
主分类号 |
H02J7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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