Battery Power Protection Circuit for Transport Isolation
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Solution Overview
Problem
Electronic devices with batteries face power consumption issues during transportation and storage, and lack a convenient reset mechanism, leading to potential over-discharging and battery life degradation.
Innovation Solution
An electronic device with a battery device power protection and reset circuit that includes a charging circuit and a switch device, where the switch connects and disconnects the battery from the main system using a power button, allowing for electrical isolation during transportation and reset functionality without a dedicated reset key.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the battery is directly connected to the system during transportation and storage, then the system can be activated immediately upon purchase, but the battery power is consumed during transportation and storage requiring pre-charging
Solution Approach 1:
The power connection is segmented into two states: isolated state during transportation/storage and connected state during usage. The switch device divides the power circuit into separate segments that can be independently controlled, allowing the battery to be physically disconnected from the main system during non-usage periods while enabling immediate activation when needed.
Solution Approach 2:
The battery is pre-connected to the switch device but the switch remains in an off state during transportation and storage. This preliminary configuration allows the battery to be ready for immediate activation when the user presses the power button, without consuming power during the transportation and storage phases.
2Device complexity
If the system lacks a reset key, then the device structure is simplified, but the user must wait for system power down to reset the system which may lead to over-discharging
Solution Approach 1:
The reset function is merged with the existing power button functionality. By combining two functions (power on/off and system reset) into a single physical button, the device maintains structural simplicity while enabling reset capability. The charging circuit detects the duration of the button press to distinguish between power activation and reset commands.
Solution Approach 2:
The power button is designed with multi-functionality, serving both as the primary power activation button and as a reset button when pressed for a specific duration. This universal design eliminates the need for a separate reset key, maintaining structural simplicity while providing reliable reset functionality that prevents over-discharging issues.
3Loss of energy
If the battery is isolated from the system during transportation and storage, then power loss is prevented, but an additional switch device and control circuit are required
Solution Approach 1:
The charging circuit is designed with multi-functionality, serving both as the battery charging circuit and as the control circuit for the switch device. The same charging circuit that manages battery charging also detects power button press duration and controls the switch device state, eliminating the need for a separate control circuit and reducing overall device complexity.
Solution Approach 2:
The switch device control functionality is merged with the existing charging circuit. The charging circuit is extended to include switch control capabilities, where the same circuit components and control logic are used for both battery charging management and switch device operation, thereby avoiding additional circuitry.
Data Source
AI summary
An electronic device and a method of operating the same are disclosed, where the electronic device includes a main system, a battery, and a battery device power protection and reset circuit. The battery device power protection and reset circuit includes a charging circuit and a switch device. The switch device connects the battery and the main system. The charging circuit turns off the switch device when operating under a first trigger mode, so that the switch device can electrically isolate the main system from the battery.