Battery Power Cutoff Circuit for Standby Discharge Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional electronic equipment with rechargeable batteries face issues of continuous power discharge due to standby current consumption, leading to deep discharge and unintended power cutoff, especially when not in use, making it difficult to sell or use the equipment effectively.
Innovation Solution
An electronic equipment configuration that includes a control section, a secondary battery, a supply detecting section, and a switching element, where the supply detecting section detects external power supply and controls the switching element to cut off power from the battery, using an RF tag for communication to manage battery connection and cutoff operations, allowing for efficient power management and preventing unnecessary discharge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the electronic equipment continuously operates electronic circuits in standby state, then the equipment is ready for immediate use, but the battery discharges continuously leading to deep discharge and unintended power cutoff
Solution Approach 1:
The system performs preliminary detection of external power supply connection status. When external power is detected, the system proactively cuts off battery power before deep discharge occurs, and when no external power is detected, it proactively restores battery connection to ensure readiness. This preliminary detection and action prevents the contradiction from manifesting.
Solution Approach 2:
The electronic equipment automatically manages its own power state by detecting external power supply and autonomously controlling the cutoff and restoration of battery power through the switching element. The system serves itself by eliminating the need for manual user intervention to prevent battery discharge, resolving the contradiction between readiness and energy loss.
2Duration of action of stationary object
If the battery is completely cut off to prevent discharge, then battery life is extended, but the equipment cannot be used immediately without external power connection
Solution Approach 1:
The system dynamically adjusts the power connection state of the battery based on real-time detection of external power supply conditions. The switching element transitions between cutoff and connection states according to external power availability, optimizing both battery life extension and operational readiness without fixed constraints.
Solution Approach 2:
The system continuously detects external power supply status and uses this feedback to control the switching element. When external power is detected, the system feedbacks to cut off battery power; when external power is removed, the system feedbacks to restore battery connection. This closed-loop feedback mechanism resolves the contradiction by adapting to changing conditions.
3Reliability
If the electronic equipment requires manual battery detachment to prevent discharge, then battery health is maintained, but the operation becomes complex and user intervention is required
Solution Approach 1:
The electronic equipment automatically performs the function of preventing battery discharge through electronic control of the switching element, eliminating the need for manual battery detachment. The system serves itself by autonomously managing battery connection based on external power detection, maintaining reliability while reducing operational complexity to zero user actions.
Solution Approach 2:
The patent replaces the mechanical action of manually detaching the battery with an electronic control system that uses a switching element to electrically disconnect the battery. This substitution maintains battery health through electronic means rather than mechanical removal, significantly reducing device complexity and user intervention requirements.
Data Source
AI summary
An electronic equipment, including: an electronic circuit which includes a control section and performs a predetermined functional operation; a battery which supplies electric power to the electronic circuit; a supply detecting section which detects power supply from outside; and a supply cutoff section which cuts off power supply from the battery to the electronic circuit, wherein when the supply detecting section detects the power supply from outside, the supply detecting section performs a battery connection operation of releasing cutoff of the power supply by the supply cutoff section.