Invention Grant
US08484496B2 Method and system for thermal management of battery charging concurrencies in a portable computing device
有权
用于便携式计算设备中的电池充电协议的热管理方法和系统
- Patent Title: Method and system for thermal management of battery charging concurrencies in a portable computing device
- Patent Title (中): 用于便携式计算设备中的电池充电协议的热管理方法和系统
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Application No.: US13193901Application Date: 2011-07-29
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Publication No.: US08484496B2Publication Date: 2013-07-09
- Inventor: Jon James Anderson , Francis Ngai
- Applicant: Jon James Anderson , Francis Ngai
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Nicholas A. Cole
- Main IPC: G06F1/26
- IPC: G06F1/26 ; G06F1/32

Abstract:
A method and system for reducing thermal load by monitoring temperatures within a portable computing device and, based on those temperatures, controlling a battery charge function are disclosed. The method includes monitoring a power management integrated circuit (“PMIC”) to determine if it is generating excess thermal energy that is contributory to an elevated temperature in a physically proximate application specific integrated circuit (“ASIC”). If so, and if the excess thermal energy is attributable to an ongoing battery recharge operation executed by the PMIC, a thermal policy manager module may execute a thermal mitigation technique algorithm to override the PMIC battery recharge function. One exemplary thermal mitigation technique may include a reduction of current sent to the battery, thus slowing the charge cycle and reducing the generation of excess thermal energy.
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