Aerosol Device Battery Charging Control by Power Capability Detection
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Solution Overview
Problem
Existing smoking alternatives, such as tobacco heating devices, face challenges in efficiently charging batteries based on the power capabilities of the power supply, leading to potential underperformance or damage.
Innovation Solution
A charging controller is implemented to manage battery charging based on the power capabilities of the power supply, selecting between higher and lower power modes, and determining these capabilities through voltage drops and user input, ensuring optimal charging rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a fixed high charging current is used to charge the battery, then charging speed is improved, but battery safety and reliability deteriorate due to potential damage from excessive current
Solution Approach 1:
The charging controller dynamically adjusts the charging current based on real-time detection of power supply capabilities and battery charging states. The system transitions from a static fixed current approach to a dynamic adaptive approach, modifying the charging current within a range from lower to higher current based on detected conditions, thereby resolving the contradiction between charging speed and battery safety
Solution Approach 2:
The charging controller implements a feedback mechanism by detecting voltage drops across the power supply to determine power supply capabilities. This feedback loop allows the system to continuously monitor charging conditions and adjust the charging current accordingly, ensuring high charging speed when conditions permit while preventing battery damage when power supply capabilities are limited
2Reliability
If a fixed low charging current is used to charge the battery, then battery safety is improved, but charging speed deteriorates leading to underperformance
Solution Approach 1:
The system employs dynamic charging current adjustment rather than a fixed low current. The charging controller can operate at lower currents when power supply capabilities are limited to ensure safety, but can transition to higher currents when power supply capabilities are sufficient, thereby achieving both safety and optimal charging speed without underperformance
Solution Approach 2:
The charging controller changes the charging current parameter based on detected power supply capabilities and battery charging states. By adjusting this critical parameter within an appropriate range, the system optimizes the balance between battery safety and charging speed, preventing both underperformance and damage
3Productivity
If the charging current is increased without detecting power supply capabilities, then charging speed is improved, but harmful effects increase due to potential battery damage
Solution Approach 1:
The charging controller performs preliminary detection of power supply capabilities through voltage drop measurement before initiating high current charging. This preliminary action establishes the safe operating boundaries for charging current, ensuring that high charging speed is only achieved when power supply capabilities are sufficient to support it without causing battery damage
Solution Approach 2:
The system uses real-time feedback from voltage drop detection to monitor power supply capabilities during charging. This feedback mechanism allows the charging controller to detect changes in power supply status and adjust the charging current accordingly, preventing battery damage while maintaining optimal charging speed when conditions allow
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 ensures safe and efficient battery charging, preventing underperformance and damage while optimizing power usage.
Implementation Method 1
the charging controller, or a control module in communication with the charging controller, may be configured to determine the power capabilities of the power supply on the basis of a voltage drop in response to a request for an increased charging current
Data Source
AI summary
An apparatus and a method for an aerosol generating device is described, the apparatus including a charging controller. The charging controller is configured to control charging of a battery using a power supply at a charging current dependent, at least in part, on power capabilities of the power supply.