Dynamic Battery Charging Voltage Adjustment
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Solution Overview
Problem
The increasing capacity of batteries in portable electronic devices has led to longer charging times, and while high-power charging can reduce this time, it results in heat emission and decreased efficiency due to power loss.
Innovation Solution
An electronic device and charging method that dynamically adjust the charging voltage and current based on battery information, such as voltage, state of charge, and temperature, to minimize heat generation and enhance charging efficiency, by bypassing internal voltage converters during high-speed charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high power charging is used to reduce charging time, then charging speed is improved, but heat emission increases and charging efficiency decreases
Solution Approach 1:
The patent implements dynamic charging by continuously monitoring battery state (voltage, temperature, charge level) and adjusting charging parameters in real-time. The controller modifies charging current and voltage based on battery conditions, transitioning between different charging stages (constant current, constant voltage, tapering) to optimize both charging speed and efficiency while preventing excessive heat generation.
Solution Approach 2:
The patent changes charging parameters (current, voltage, power) based on battery state. The controller adjusts these parameters dynamically according to battery voltage, temperature, and charge level, allowing the system to operate at high power when safe and reduce power when heat generation becomes problematic, thereby resolving the contradiction between speed and efficiency.
2Productivity
If high power charging is used to reduce charging time, then charging speed is improved, but heat emission increases
Solution Approach 1:
The patent employs feedback control by continuously monitoring battery temperature, voltage, and charge level during charging. The controller uses this feedback information to adjust charging parameters in real-time, reducing power when temperature rises and increasing power when conditions permit, thus achieving fast charging without excessive heat emission.
Solution Approach 2:
The charging system dynamically adapts its power output based on real-time battery conditions. By continuously adjusting charging parameters according to temperature and state of charge, the system maintains optimal charging speed while preventing thermal runaway and excessive heat generation.
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 reduces heat emission and improves charging efficiency by optimizing the charging process based on real-time battery conditions, allowing for faster charging while maintaining efficiency.
Implementation Method 1
a voltage converter configured to convert the applied voltage to a voltage suitable for charging the battery
Data Source
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AI summary
Provided are a battery charging method and an electronic device. The electronic device includes a connector that includes a first terminal to which a voltage is applied by an external charger and a second terminal for transmitting and receiving data, and a first charging circuit configured to charge a battery of the electronic device by using the voltage applied to the first terminal. The first charging circuit may include a communication circuit configured to transmit information related to the battery through the second terminal, a voltage converter configured to convert a voltage supplied to the battery and a first controller circuit configured to obtain first information regarding a voltage of the battery, control the communication circuit to transmit the first information to a charger connected with the connector, and control the voltage converter to charge the battery using a voltage adjusted based on the first information by the charger, if the adjusted voltage is applied to the first terminal.