Invention Grant
- Patent Title: Multi-phase battery charging with boost bypass
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Application No.: US16059127Application Date: 2018-08-09
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Publication No.: US11152808B2Publication Date: 2021-10-19
- Inventor: Jamie Langlinais , Mark A. Yoshimoto , Lin Chen
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Fletcher Yoder PC
- Main IPC: H02J7/00
- IPC: H02J7/00 ; H02M3/158 ; G06F1/26

Abstract:
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.
Public/Granted literature
- US20180375364A1 Multi-Phase Battery Charging with Boost Bypass Public/Granted day:2018-12-27
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