Mobile Terminal Quick Charging Circuit with Dynamic Curve Control
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Solution Overview
Problem
The increasing power consumption of smart terminals due to larger display screens and battery capacity leads to longer charging times, causing both portable power sources and batteries to deplete quickly, with fast charging potentially damaging battery life.
Innovation Solution
A quick charging system for mobile terminals that includes a detecting circuit, processing circuit, and charging management circuit to optimize charging by detecting environmental conditions and adjusting current and voltage within safe ranges, ensuring efficient charging without damaging the battery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the battery capacity of the smart terminal is increased to meet power consumption requirements, then the power supply capability is improved, but the charging time becomes longer
Solution Approach 1:
The patent applies dynamic charging control by continuously monitoring battery parameters (voltage, current, temperature) and adjusting charging current in real-time based on the charging curve stage. The charging management circuit dynamically modifies charging parameters to optimize charging speed while ensuring battery safety, resolving the contradiction between fast charging and battery protection.
Solution Approach 2:
The patent changes charging parameters (current, voltage, power) based on the charging curve stage and battery state. By adjusting these parameters dynamically according to battery capacity, temperature, and charging progress, the system achieves both fast charging and battery safety, resolving the time-capacity contradiction.
2Productivity
If quick charging is implemented to reduce charging time, then the charging speed is improved, but the battery service life is reduced due to damage
Solution Approach 1:
The patent implements feedback control by continuously detecting battery parameters (voltage, current, temperature) and using this information to adjust charging parameters. The processing circuit analyzes feedback from the detecting circuit to determine the charging curve stage and modify charging current accordingly, ensuring fast charging while protecting battery life through real-time monitoring and adjustment.
Solution Approach 2:
The patent applies beforehand cushioning by establishing multiple charging curve stages with progressively increasing current limits. Before reaching dangerous charging levels, the system pre-defines safe current thresholds for different battery states, cushioning against potential battery damage while maintaining optimal charging speed throughout the process.
3Power
If the charging current is increased to achieve fast charging, then the charging power is improved, but the battery temperature rises causing safety issues
Solution Approach 1:
The patent uses feedback control to monitor battery temperature and adjust charging current accordingly. When temperature rises indicate overheating risk, the system reduces charging current to maintain safe operating temperatures, resolving the contradiction between high charging power and temperature control through continuous parameter adjustment.
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 solution enables faster charging of mobile terminals while extending battery life by optimizing charging power based on environmental conditions, reducing the risk of battery damage and meeting user demands for quicker charging.
Implementation Method 1
the detecting circuit is configured to detect a charging environment of the mobile terminal when the mobile terminal is connected to a charger for charging, the charging environment may include at least one of room temperature, battery parameters and charger parameters
Implementation Method 2
the processing circuit is configured to obtain an optimal quick charging curve according to the charging environment detected by the detecting circuit, select a first relatively high current allowed by the battery parameters from a charging current range for charging
Implementation Method 3
the voltage control sub-circuit is configured to: when the voltage of the mobile terminal is in a preset safe voltage range, convert the voltage into an AC voltage and transmit the AC voltage to the pulse width modulation sub-circuit
Implementation Method 4
the pulse width modulation sub-circuit is configured to adjust, according to the optimal quick charging curve obtained by the processing circuit, a pulse width of the AC voltage converted by the voltage control sub-circuit, so as to adjust the charging voltage
Implementation Method 5
charge the battery of the mobile terminal by using the optimal charging current in the optimal charging curve
Data Source
AI summary
A quick charging mobile terminal, a charger, and a method for charging a mobile terminal are disclosed. The terminal includes: a detecting circuit, used to detect a charging environment of the mobile terminal, the charging environment including at least one of room temperature, battery parameters and charger parameters; a processing circuit, used to obtain an optimal quick charging curve according to the charging environment detected by the detecting circuit, and a charging management circuit, used to charge the mobile terminal according to the optimal quick charging curve and the charging environment. The disclosed terminal can ensure safety and the service life of the terminal while achieving quick charging of the terminal.