Wireless Earphone Power Circuit for Charging Box Power Cutoff
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wireless earphones experience low charging efficiency due to continuous power consumption when placed in charging boxes.
Innovation Solution
A power circuit with a control circuit and switch circuit that enables or disables power supply from the battery based on a control signal, cutting off power to non-essential components when the earphone is in the charging box.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the wireless earphone is placed in the charging box for charging, then the battery can be recharged, but most circuits and components continue to consume power resulting in low charging efficiency
Solution Approach 1:
The patent applies the dynamics principle by implementing a switch circuit that dynamically changes the power supply state based on charging conditions. When the earphone is detected to be in the charging box, the switch circuit automatically cuts off power to non-essential circuits and components, transforming the power supply system from a static always-on state to a dynamic conditional state that adapts to charging mode, thereby reducing power consumption and improving charging efficiency
Solution Approach 2:
The patent applies the preliminary action principle by detecting the charging box presence in advance and proactively cutting off power to non-essential circuits before significant energy waste occurs. The control circuit monitors the charging state and preemptively disables unnecessary components, preventing energy loss rather than reacting to it after it has already consumed power
2Ease of operation
If power is continuously supplied to all circuits during charging, then the earphone remains fully operational, but charging efficiency decreases due to simultaneous power consumption
Solution Approach 1:
The patent applies the segmentation principle by dividing the power supply system into multiple independent controllable segments. Different circuits and components are separated into distinct power domains that can be independently enabled or disabled through the switch circuit. This allows essential functions to remain powered while non-essential functions are segmented out and powered down during charging, reducing overall power consumption without completely disabling operational readiness
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
Reduces power consumption and improves charging efficiency by powering down non-essential components during charging, allowing for efficient battery charging and resetting the earphone when removed from the charging box.
Implementation Method 1
a switch circuit, where the switch circuit is turned off based on the control signal when the wireless earphone is put into the charging box
Data Source
AI summary
A power circuit for a wireless earphone includes a first charging terminal, a second charging terminal, a charger, a battery circuit, and a control circuit. The charger is enabled via a voltage across the first charging terminal and the second charging terminal. The battery circuit is connected to the charger. The control circuit is connected to the first charging terminal and the battery circuit. The control circuit is configured to enable or disable with a supply of power from the battery circuit based on a control signal provided by the first charging terminal.