公开(公告)号：US09935546B2

公开(公告)日：2018-04-03

申请号：US15012619

申请日：2016-02-01

Applicant: QUALCOMM Incorporated

Inventor： Srikanth Jatavallabhula ,  Anand Kudari ,  Arvindh Rajasekaran

IPC: G05F1/00 ,  H02M3/158 ,  H02M1/00

CPC classification number: H02M3/158 ,  H02M2001/0009 ,  H02M2001/0045 ,  H02M2001/008

Abstract: Power supplies combining a switching-mode power supply in parallel with a current source can improve maximum load current capability. The current source can be turned on, or the amount of current supplied by the current source increased, when there is a heavy load current demand, for example, when the load current demand is more than the current rating of the switching-mode power supply. The duty cycle of the output stage of the switching-mode power supply can be used to determine the load current demand. The current source may increase the maximum output current of the power supply beyond the maximum output current of the switching-mode power supply. For example, the current source may add 0.5 A to the current capability of a 2.5 A switching-mode power supply.

公开(公告)号：US20150268678A1

公开(公告)日：2015-09-24

申请号：US14219966

申请日：2014-03-19

Applicant: Qualcomm Incorporated

Inventor： Guolei Yu ,  Arvindh Rajasekaran ,  Amy Derbyshire ,  Ching Chang Shen

IPC: G05F1/46

CPC classification number: G05F1/46

Abstract: The disclosed systems and methods for current management can be used with system-on-a-chip (SoC) integrated circuits in, for example, battery-powered portable devices. The current management provides detection of supply current levels from a power management integrated circuit (PMIC) to an SoC. The PMIC signals, for example, using interrupts, the SoC when the supply current levels exceed thresholds. The SoC can then alter its operations to avoid exceeding the current capability of the PMIC. The current management can avoid the SoC experiencing a functional failure due to loss of power during high current conditions. Additionally, development methods can be used to optimize a system for various conditions besides the traditional worst-case design commonly used.

Abstract translation: 所公开的用于当前管理的系统和方法可以与例如电池供电的便携式设备中的片上系统（SoC）集成电路一起使用。 目前的管理提供了从电源管理集成电路（PMIC）到SoC的电源电流检测。 PMIC信号，例如，使用中断，当电源电流水平超过阈值时，SoC。 然后，SoC可以改变其操作，以避免超过PMIC的当前能力。 目前的管理可以避免SoC在高电流条件下由于功率损失而遭遇功能故障。 此外，开发方法可以用于优化除了传统的最坏情况设计常用的各种条件的系统。

公开(公告)号：US10250052B2

公开(公告)日：2019-04-02

申请号：US14958841

申请日：2015-12-03

Applicant: QUALCOMM Incorporated

Inventor： Radhika Bharath Patil ,  Arvindh Rajasekaran

IPC: H02J7/00 ,  H01M10/44 ,  H02J7/04

Abstract: A method, an apparatus, and a computer-readable medium for battery charging are provided. The apparatus determines a level of a charge current for charging a battery based on a user preference. The apparatus determines a number of rest periods in the charge current, wherein during the rest periods, the apparatus is configured to perform at least one of setting the charge current to zero or discharging the battery. The apparatus charges the battery with the determined level of the charge current and the determined number of rest periods.