Patents by Inventor Jamie Langlinais

Jamie Langlinais has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Multi-phase battery charging with boost bypass
    Patent number: 11152808
    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.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: October 19, 2021
    Assignee: Apple Inc.
    Inventors: Jamie Langlinais, Mark A. Yoshimoto, Lin Chen
  • Multi-Phase Battery Charging with Boost Bypass
    Publication number: 20180375364
    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.
    Type: Application
    Filed: August 9, 2018
    Publication date: December 27, 2018
    Inventors: Jamie Langlinais, Mark A. Yoshimoto, Lin Chen
  • Multi-phase battery charging with boost bypass
    Patent number: 10075007
    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.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: September 11, 2018
    Assignee: Apple Inc.
    Inventors: Jamie Langlinais, Mark A. Yoshimoto, Lin Chen
  • MULTI-PHASE BATTERY CHARGING WITH BOOST BYPASS
    Publication number: 20160064986
    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.
    Type: Application
    Filed: June 24, 2015
    Publication date: March 3, 2016
    Applicant: Apple Inc.
    Inventors: Jamie Langlinais, Mark A. Yoshimoto, Lin Chen