Handheld Device Emergency Fast-Charging Circuit Control
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Solution Overview
Problem
Conventional charging solutions for mobile devices are inconvenient due to the need for multiple chargers for different phones and do not provide fast charging capabilities, leading to battery life shortening and inability to use the phone in urgent situations.
Innovation Solution
A handheld device with a fast-charging capability, incorporating a charging circuit, safety circuit, control unit, and input module that allows for emergency charging by increasing current transfer when an emergency command is input, and includes detection and current-limit sensing circuits to manage battery charging safely.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional charging circuits use low voltage and low current to protect the battery, then the battery service life is extended, but the charging speed becomes slow and cannot meet urgent needs
Solution Approach 1:
The patent implements dynamic charging mode switching that allows the charging circuit to adapt between normal mode (low current for battery protection) and emergency mode (high current for fast charging). The control unit dynamically adjusts charging parameters based on user input and battery state, resolving the contradiction between charging speed and battery safety.
Solution Approach 2:
The patent changes the electrical parameters (voltage and current) of the charging circuit based on different charging modes. In emergency charging mode, the system increases current and voltage parameters to achieve fast charging, while in normal mode, it maintains lower parameters to protect battery life. This parameter adaptation resolves the contradiction between charging speed and battery service life.
2Adaptability or versatility
If users carry multiple charging cradles for different mobile phones, then compatibility with various phone types is improved, but the convenience and portability are reduced
Solution Approach 1:
The patent makes the mobile phone itself serve as a universal charging device by enabling it to charge other phones directly through its battery and charging circuit. This eliminates the need for users to carry multiple external charging cradles for different phone types, as the phone can function as a power source for various devices, thereby improving convenience while maintaining compatibility.
Solution Approach 2:
The patent enables the mobile phone to charge itself and other devices without external assistance. The phone's internal battery and charging circuit are utilized to provide power to other phones in emergency situations, making the system self-sufficient and eliminating the need for external charging cradles, thus improving user convenience.
3Reliability
If users forget to charge the mobile phone before a trip, then the phone may run out of power during use, but carrying charging equipment is inconvenient
Solution Approach 1:
The patent enables the mobile phone to serve as its own charging device in emergency situations. When the phone's battery has sufficient charge, it can directly power another phone without requiring external charging equipment. This self-service capability ensures power availability during trips without the inconvenience of carrying additional charging devices.
Solution Approach 2:
The patent transforms the mobile phone into a universal power source that can charge both itself and other phone devices. This multi-functionality ensures that users have reliable power availability during trips without needing to carry multiple charging cradles, as the phone itself becomes the charging solution for various devices.
Data Source
AI summary
A handheld device with a fast-charging capability is adapted to be connected to a charger to obtain an electric power. The handheld device includes a battery, a charging circuit, a safety circuit, a control unit, and an input module. The charging circuit is electrically connected to the charger and transfers an electric power to the battery. The safety circuit is used for restricting an upper limit of the electric power transferred by the charging circuit. The input module is provided for a user to input an emergency charge command. Upon receiving the emergency charge command, the control unit instructs the safety circuit to lower the restriction on the charging circuit, so as to raise the upper limit of the electric power that can be obtained by the charging circuit, thereby accelerating the charging of the battery.