Dynamic Voltage Adjustment for Mobile Power Management
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Solution Overview
Problem
Mobile communication devices face challenges in achieving longer battery life and reduced battery size while accommodating increased functionality, as low voltage level batteries struggle to provide sufficient power to support various features like cameras, flashes, and screen backlights.
Innovation Solution
A dynamic power management system using a single voltage converter that monitors and adjusts the input voltage level based on active loads, determining the minimum required output voltage and reducing the charging rate when necessary to optimize power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If low voltage level batteries are used to extend battery life, then discharge time is improved, but power availability to support increased functionality deteriorates
Solution Approach 1:
The patent implements dynamic voltage adjustment where the voltage converter continuously monitors load conditions and adjusts the output voltage level in real-time. When high-power features are activated, the system dynamically increases voltage to meet power demands, while during low-activity periods it maintains lower voltage to conserve battery energy, thus resolving the contradiction between extended discharge time and adequate power availability
Solution Approach 2:
The system changes the voltage parameter dynamically based on operational requirements. By adjusting the voltage level according to the active load profile, the patent enables low voltage batteries to provide sufficient power when needed while maximizing discharge duration during normal operation, effectively reconciling the trade-off between power availability and battery life
2Power
If multiple voltage converters are used to support various voltage level requirements of different loads, then power delivery capability is improved, but device complexity increases
Solution Approach 1:
The patent employs a single voltage converter that is designed to universally serve multiple loads with different voltage requirements. The converter monitors the collective load conditions and adjusts its output to accommodate various power demands, replacing what would traditionally require multiple dedicated voltage converters, thus reducing device complexity while maintaining adequate power delivery capability
Solution Approach 2:
The patent merges the functions of multiple voltage converters into a single unified voltage conversion system. By combining these functions and implementing intelligent load monitoring and dynamic voltage adjustment, the system achieves the power delivery capability of multiple converters while significantly reducing the number of components and overall system complexity
3Volume of moving object
If battery size is reduced to make mobile devices smaller, then device compactness is improved, but power capacity deteriorates
Solution Approach 1:
The patent uses dynamic voltage management to maximize the power utilization efficiency of smaller batteries. By adjusting voltage levels to match actual load requirements and minimizing energy waste, the system enables compact batteries to deliver sufficient effective power capacity, resolving the contradiction between reduced battery size and adequate power capacity
Solution Approach 2:
The system optimizes power delivery parameters dynamically, adjusting voltage and current levels to extract maximum effective power from smaller battery capacities. This parameter optimization allows compact batteries to provide adequate power for increased functionality without requiring larger physical battery sizes
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach extends battery life, reduces battery size, and efficiently manages power consumption by dynamically adjusting voltage levels to meet the needs of active loads, thereby enhancing the performance and functionality of mobile devices.
Implementation Method 1
providing an input voltage level to a single voltage converter of the mobile device... adjusting the input voltage level via the voltage converter to provide the minimum required output voltage level
Data Source
AI summary
A mobile device adapted for dynamic power management. The mobile device includes an output power port, a voltage converter adapted to convert an input voltage to provide an output voltage to the output power port, and a processor. The processor is adapted to monitor at least one load electrically to determine when the at least one load will become active or inactive, determine a minimum required output voltage to be provided by the voltage converter based on the at least one load that will become active or inactive, control the voltage converter to provide at least the minimum required output voltage on the output power port in advance of the at least one load becoming active or after the at least one load becomes inactive, and when the input voltage is below the first threshold, control the voltage converter to reduce the output voltage.