Fast Charging Terminal Voltage Regulation via Current Boosting
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Solution Overview
Problem
Conventional fast charging terminals for electronic devices with large-capacity batteries face increased charging times, which negatively impact user experience, as the battery capacity grows to accommodate higher power consumption.
Innovation Solution
A fast charging terminal design incorporating a USB interface, a switch module, a supply voltage detecting unit, a central processor, and a charging management unit that decreases supply voltage and increases supply current, utilizing an intelligent charger with an output voltage of at least 5V to achieve fast charging while ensuring safety through voltage regulation and using lithium polymer battery cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If battery capacity is increased to accommodate higher power consumption, then standby time is improved, but charging time is increased
Solution Approach 1:
The patent changes the electrical parameters by increasing supply voltage beyond standard 5V (to 6V-25V) and correspondingly increasing supply current (to 1A-10A or higher), which allows faster charging of large-capacity batteries while maintaining safety through controlled parameter transitions and protection circuits
2Productivity
If supply voltage is increased to enable fast charging, then charging speed is improved, but safety risk is increased
Solution Approach 1:
The patent implements feedback control through detection units that monitor supply voltage and supply current in real-time, comparing them against preset safe ranges, and automatically adjusting or disconnecting the charging circuit when parameters exceed safe thresholds, thus enabling high-voltage fast charging while maintaining safety
Solution Approach 2:
The patent introduces intermediary protection circuits including over-voltage protection, over-current protection, and short-circuit protection that act as mediators between the high-voltage charging source and the battery, preventing direct damage while enabling fast charging
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 significantly shortens battery charging time by maintaining unchanged supply power, increasing the supply current, and ensuring safe charging conditions, thereby enhancing user experience and preventing battery damage.
Implementation Method 1
a charging management unit for converting the supply voltage and a supply current outputted by the intelligent charger, the charging management unit decreasing the supply voltage and increasing the supply current so as to fast charge the battery
Implementation Method 2
the switch module and the charging management unit have a voltage reducing unit disposed therebetween, and the voltage reducing unit is used to decrease the supply voltage outputted by the USB interface
Implementation Method 3
a supply voltage detecting unit for detecting a supply voltage outputted by the USB interface
Data Source
AI summary
A fast charging terminal is provided, which includes a battery, a USB interface, a switch module, a supply voltage detecting unit, a central processor, and a charging management unit. After the USB interface is connected to an intelligent charger, the switch module is switched on when the supply voltage outputted by the USB interface is within a safe supply voltage range such that the charging management unit converts the supply voltage and the supply current. The charging management unit decreases the supply voltage and increases the supply current to charge the battery.