Power Adapter Control Switch for Portable Device Battery
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Solution Overview
Problem
Current transformers for portable electronics do not have automatic power on/off control, leading to continuous power consumption and overheating, even when the battery is fully charged, which shortens the service life and is inconvenient for users.
Innovation Solution
A power control system with a monitoring device and a power adapter that includes a latch and controller to detect the battery's power on/off status and charge level, automatically turning the power on/off to prevent unnecessary power consumption and overheating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the transformer continuously supplies power without automatic control, then the power supply is always available to the portable electronic device, but the power adapter overheats and consumes unnecessary energy when the battery is fully charged
Solution Approach 1:
The patent implements a feedback mechanism where the monitoring device continuously detects the battery's charge status and communicates this information to the power control device. When the battery reaches full charge, the system automatically receives feedback signals and responds by turning off the power adapter, thereby eliminating continuous energy waste while maintaining reliability during charging periods.
Solution Approach 2:
The system enables self-service operation where the power adapter automatically monitors its own operational necessity through the monitoring device and controller. The adapter can autonomously determine when to remain active or shut down based on battery status, eliminating the need for manual user intervention and achieving energy efficiency without compromising power supply reliability.
2Duration of action of moving object
If the transformer continuously supplies power, then the device remains powered, but the service life of the transformer is shortened due to overheating
Solution Approach 1:
The monitoring device provides continuous feedback on battery charge status to the power control device. When full charge is detected, the system automatically shuts off the power adapter, preventing overheating and extending transformer service life while maintaining device operation duration through battery power.
Solution Approach 2:
The system implements periodic monitoring of battery status and periodic control actions. The power adapter operates in cycles - active during charging, inactive when full - rather than continuous operation. This periodic action pattern reduces thermal stress on the transformer while ensuring the device remains operational throughout.
3Loss of energy
If a manual switch is added to the transformer, then the user can control power on/off, but the operation becomes inconvenient and users may forget to switch it off
Solution Approach 1:
The system replaces manual user operation with automated self-service functionality. The monitoring device and controller work together to automatically detect battery charge status and control the power adapter's on/off states without requiring any user action. This eliminates the inconvenience of manual switching while achieving the same energy-saving objective.
Solution Approach 2:
The automated system uses feedback mechanisms to monitor battery status and automatically adjust power adapter operation. This feedback-driven automation removes the burden of manual intervention from users while maintaining optimal power consumption management, directly resolving the contradiction between energy efficiency and ease of operation.
4Loss of energy
If the power adapter is automatically controlled to turn off when battery is full, then energy is saved, but the device complexity increases due to monitoring device and controller
Solution Approach 1:
The monitoring device and controller are designed with multi-functionality, serving both battery status monitoring and power control functions within a single integrated system. This universal approach minimizes the number of separate components needed, reducing overall system complexity while achieving automated energy management.
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 effectively reduces power consumption and prevents overheating by automatically controlling the power adapter based on the battery's charge state, extending the service life and enhancing user convenience by eliminating the need for manual switching.
Implementation Method 1
The power circuit is coupled to the first switch for converting the voltage of the power
Implementation Method 2
The latch is coupled to the first switch for latching the first switch
Data Source
AI summary
A system and a method for power control are provided. In the present invention, a control switch is disposed in a power adapter, which is turned on/off by a monitoring device disposed in a portable electronic device. As a result, the power inputted into the power adapter can be controlled, and thus the power consumption during the portable electronic being shut down is reduced. In addition, the present invention controls the power providing for a battery according to a detected power on/off signal and the electric quantity of the battery. The control switch is turned off to stop the power adapter from providing power when the electric quantity of the battery reaches a reference value. Therefore, the overheating situation of the portable electronic device or the battery that may shorten their service life because of continuing receiving power can be avoided.