发明名称 |
MULTI-PHASE BATTERY CHARGING WITH BOOST BYPASS |
摘要 |
The disclosed embodiments provide a system that manages use of a battery in a portable electronic device. During operation, the system operates a charging circuit for converting an input voltage from a power source into a set of output voltages for charging the battery and powering a low-voltage subsystem and a high-voltage subsystem in the portable electronic device. Upon detecting the input voltage from the power source and a low-voltage state in the battery during operation of the charging circuit, the system uses a first inductor group in the charging circuit to down-convert the input voltage to a target voltage of the battery that is lower than a voltage requirement of the high-voltage subsystem. The system also uses a second inductor group in the charging circuit to up-convert the target voltage to power the high-voltage subsystem. |
申请公布号 |
US2016064986(A1) |
申请公布日期 |
2016.03.03 |
申请号 |
US201514749470 |
申请日期 |
2015.06.24 |
申请人 |
Apple Inc. |
发明人 |
Langlinais Jamie;Yoshimoto Mark A.;Chen Lin |
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 |
1. A method for managing use of a battery in a portable electronic device, comprising:
operating a charging circuit for converting an input voltage from a power source into a set of output voltages for charging the battery and powering a low-voltage subsystem and a high-voltage subsystem in the portable electronic device; and during operation of the charging circuit, upon detecting the input voltage from the power source and a low-voltage state in the battery:
using a first inductor group in the charging circuit to down-convert the input voltage to a target voltage of the battery that is lower than a voltage requirement of the high-voltage subsystem; andusing a second inductor group in the charging circuit to up-convert the target voltage to power the high-voltage subsystem. |
地址 |
Cupertino CA US |