Mobile Terminal Expansion Base Automatic Power Control
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Solution Overview
Problem
Current extended bases for mobile terminals require manual operation to stop power supply when a wireless network terminal is removed, leading to cumbersome usage and poor user experience.
Innovation Solution
Incorporating a power supply circuit with an NPN transistor and switch elements that automatically control power on/off based on the presence or absence of a mobile terminal, using a voltage threshold to enable or disable power supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If manual power supply control is used for the extended base, then the power supply can be stopped when the terminal is removed, but the operations become cumbersome and user experience deteriorates
Solution Approach 1:
The extended base automatically detects the presence or absence of the wireless network terminal through the connection detection signal line, and the power supply controller automatically controls the power supply state based on the detection result, enabling the system to serve itself without manual intervention. This resolves the contradiction by eliminating the need for manual operation while maintaining energy savings.
Solution Approach 2:
The connection detection signal line provides real-time feedback on whether the terminal is connected or removed, and the power supply controller uses this feedback to automatically adjust the power supply state. This feedback mechanism enables automatic power management that both saves energy and improves user experience by eliminating manual operations.
2Ease of operation
If the extended base remains powered on continuously, then user convenience is improved, but power consumption increases and service life decreases
Solution Approach 1:
The power supply state of the extended base is made dynamic rather than static, automatically switching between powered-on and powered-off states based on the real-time connection status of the terminal. This dynamic adjustment allows the system to maintain user convenience when needed while reducing power consumption when the terminal is removed.
Solution Approach 2:
The extended base autonomously manages its own power supply based on terminal connection status, eliminating the need for continuous manual monitoring or intervention. The system automatically transitions between power states to balance user convenience with energy efficiency.
3Ease of operation
If automatic power control is implemented, then user experience is improved by eliminating manual operations, but device complexity increases
Solution Approach 1:
The automatic power control functionality is extracted as a separate power supply controller module that works independently with the connection detection signal line. This modular extraction allows the automatic control feature to be added without significantly complicating the overall system architecture, as the power supply controller handles all automatic control logic in isolation.
Solution Approach 2:
The power supply controller serves multiple functions: it receives connection detection signals, determines power supply states, and controls the power supply circuit. By making this component multi-functional, the patent reduces the need for separate dedicated components for each function, thereby limiting the increase in device complexity while achieving automatic power control.
Data Source
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AI summary
The present invention discloses an extended base of a mobile terminal and a power supply management method for the extended base. When a mobile terminal is inserted into an extended base, an enable circuit of the extended base is electrically connected to the mobile terminal and generates an enable signal, and a switch circuit outputs a voltage under control of the enable signal, so that a power supply of the extended base supplies power under control of the voltage. When the mobile terminal is removed from the extended base, the enable circuit stops generating the enable signal, and the switch circuit stops outputting the voltage, so that the power supply cannot supply power under the control of the voltage. In the present invention, power supplying to the extended base can be stopped without a manual operation when a wireless network terminal is removed, and power can be automatically supplied to the extended base when the wireless network terminal is inserted, so as to improve user experience.