Terminal Fast-Charging Circuit With Fixed-Ratio Voltage Conversion
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Solution Overview
Problem
The increasing power demands of advanced terminals due to their high capacity and density batteries result in slow charging times, negatively impacting user experience as users rely heavily on these devices for daily activities.
Innovation Solution
A fast charging method and system that includes a terminal with a detection circuit, conversion circuit, CPU, and charger, which adjusts output voltage and current based on battery voltage thresholds, using a conversion coefficient greater than 1 to optimize charging efficiency, allowing for faster battery charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If the battery capacity and density are increased to provide longer usage time, then the battery life between charges is improved, but the charging time becomes increasingly long
Solution Approach 1:
The patent implements dynamic charging by continuously adjusting the charging current based on real-time battery voltage detection. The CPU monitors battery voltage and dynamically modifies the charging current magnitude, transitioning from static to dynamic charging control. This allows the system to optimize charging speed at different battery states, resolving the contradiction between battery capacity and charging time.
Solution Approach 2:
The patent changes the charging parameter (current magnitude) based on battery voltage thresholds. When voltage reaches certain thresholds, the CPU adjusts the charging current accordingly. This parameter adjustment strategy enables faster charging without compromising battery safety, addressing the charging time issue while maintaining high battery capacity.
2Productivity
If the charging current is increased to reduce charging time, then the charging speed is improved, but the battery may be damaged due to excessive current
Solution Approach 1:
The patent implements a feedback control mechanism where the detection circuit continuously monitors battery voltage and feeds this information to the CPU. The CPU uses this feedback to adjust the charging current in real-time, preventing excessive current that could damage the battery. This closed-loop feedback system resolves the contradiction between charging speed and battery safety.
Solution Approach 2:
The patent takes preliminary protective action by detecting battery voltage before excessive current can cause damage. The detection circuit monitors voltage thresholds in advance, and the CPU preemptively adjusts the charging current to prevent potential battery damage. This preliminary anti-action ensures high charging speed while maintaining battery reliability.
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
The system enables faster charging of terminals by efficiently adjusting output voltage and current, thereby improving user experience by reducing charging time and enhancing terminal usage.
Implementation Method 1
the conversion circuit is configured to convert the output voltage received by the receiver into 1/K times the output voltage, and convert the output current received by the receiver into K times the output current
Implementation Method 2
the conversion circuit is configured to convert the output voltage received by the receiver into 1/K times the output voltage, and convert the output current received by the receiver into K times the output current
Implementation Method 3
the detection circuit is configured to detect a value of a voltage between positive and negative electrodes of the battery
Implementation Method 4
the charging circuit is configured to charge the battery with the 1/K times the output voltage and the K times the output current
Data Source
AI summary
A terminal and a fast charging method to fast charge the terminal, where the method includes: sending, by the terminal, instruction information to a charger connected to the terminal in order to instruct the charger to adjust an output voltage and an output current; converting, by the terminal, the output voltage of the charger into 1/K times the output voltage; and converting the output current of the charger into K times the output current such that a charging circuit between two sides of a battery charges the battery with the 1/K times the output voltage and the K times the output current, where K is a conversion coefficient of a conversion circuit with a fixed conversion ratio in the terminal and is a constant value, and K is any real number greater than one.