Data Card Battery Switch Device for Static Power Reduction
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Solution Overview
Problem
Existing multi-mode data cards face power supply limitations, particularly during data transmission, and require manual power management, leading to static power consumption and reduced battery life due to the need for a push-button switch.
Innovation Solution
A switch device with a connection detecting module and a battery connection enable switch-off module that automatically turns the battery circuit on and off based on the data card's connection to a computer, eliminating the need for a manual switch and reducing static power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a push-button switch is added to the data card for manual power management, then power-up and power-down operations can be implemented, but the device complexity increases and ease of operation deteriorates
Solution Approach 1:
The system automatically detects USB connection status and controls battery circuit switching without user intervention. The connection detecting module monitors whether the data card is connected to a computer, and the battery connection enable switch-off module automatically switches the battery circuit on or off based on this detection, eliminating the need for manual push-button operation.
2Reliability
If the battery remains connected to the function module after power-down, then the battery can provide power when needed, but static power consumption occurs and battery life is reduced
Solution Approach 1:
The battery circuit connection state dynamically changes based on USB connection status. When connected to USB power, the battery circuit is switched off to avoid static power consumption. When USB power is unavailable, the battery circuit is switched on to provide power. This dynamic switching is controlled by the battery connection enable switch-off module responding to connection detecting module signals.
3Use of energy by moving object
If the battery circuit is always on to ensure power availability, then power supply reliability is improved, but energy is wasted during non-use periods
Solution Approach 1:
The connection detecting module continuously monitors USB connection status and provides feedback to the battery connection enable switch-off module. Based on this feedback, the system automatically adjusts the battery circuit state - switching off when USB power is available and switching on when USB power is disconnected, optimizing both energy efficiency and power supply reliability.
Data Source
AI summary
The present invention discloses a switch device of a data card with a battery comprising a connection detecting module and a battery connection enable switch-off module inside an original battery power supply module. The present invention further discloses a method for saving power of a data card with a battery. Using the switch device of the data card and corresponding method for saving power of the data card, a switch button of the data card can be omitted and static power consumption of the battery can be avoided, thereby saving electric quantity of the battery.