Power Management IC Dynamic Power Adjustment for Battery Life
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Portable electronic devices with small batteries have short operation times due to inadequate power management, leading to frequent battery replacements or recharging, which is inconvenient for users.
Innovation Solution
An electronic device with multiple power management integrated circuits (PMICs) connected between a battery and hardware components, using power sensors to identify power values and reduce power output when the battery residual amount falls below a threshold, thereby extending battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the battery size is kept small to maintain portability, then the device remains compact and portable, but the operation time becomes short
Solution Approach 1:
The patent dynamically changes power consumption parameters by adjusting the operating states of hardware components based on battery residual amount. When battery level is high, components operate at full performance; when battery level is low, the system transitions to power-saving modes with reduced performance parameters, thereby extending operation time without increasing battery size.
Solution Approach 2:
The patent implements dynamic power management where the PMIC continuously monitors battery status and adjusts power allocation to different hardware components in real-time. This dynamic adjustment allows the system to adapt power consumption to current battery levels, maximizing operation duration while maintaining small battery size for portability.
2Duration of action of moving object
If power is reduced to components when battery level is low, then operation time is extended, but the performance of hardware components is degraded
Solution Approach 1:
The patent applies partial action by selectively reducing power to specific hardware components based on their current usage status and priority. Instead of uniformly reducing all power consumption, the system identifies which components can tolerate reduced performance and applies power reduction only to those, maintaining critical functions at full performance while extending overall operation time.
Solution Approach 2:
The patent implements local quality by applying different power management strategies to different hardware components. Each component receives power allocation tailored to its current operational needs and priority level, allowing critical components to maintain high performance while non-critical components operate in power-saving modes, thus balancing performance and operation time.
3Measurement precision
If multiple PMICs are used to manage power to different components, then power management precision is improved, but device complexity increases
Solution Approach 1:
The patent divides the power management function into multiple independent PMIC units, each responsible for specific hardware components. This segmentation allows precise independent control of power allocation to different components, improving overall power management precision. Each PMIC can monitor and adjust power parameters for its designated components without interfering with other parts of the system.
Solution Approach 2:
The patent designs the PMIC system with universal control capabilities where each PMIC can manage multiple components and the system as a whole implements coordinated power management across all components. This multi-functionality allows the multiple PMICs to work together efficiently, providing precise power control without proportionally increasing system complexity.
Data Source
AI summary
An electronic device is provided. The electronic device includes a battery, a power management integrated circuit (PMIC), that is electrically connected to the battery, adjusts at least part of power received from the battery, and outputs a controlled power, a processor electrically connected to the PMIC, at least one power sensor that is one of electrically connected between the battery and the PMIC and constitutes a part of the PMIC, and a control circuit electrically connected to the at least one power sensor. The control circuit acquires at least one of a current value and a power value input into the PMIC from the battery, determines whether at least one of the acquired current value and power value is greater than or equal to a threshold, and generates a first signal for controlling at least one of the PMIC and the processor, at least partially based on the determination.