Wireless Charging Pad Control Circuit for Mouse Safety
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Solution Overview
Problem
Existing wireless charging solutions for rechargeable wireless mice can be damaged or inefficient when used with non-compatible devices, as they lack a mechanism to automatically stop charging when a wireless receiver is disconnected, leading to potential damage and unnecessary power consumption.
Innovation Solution
A wireless charging pad with a wireless power transmitting module and a charging control circuit that activates or deactivates electromagnetic power output based on an activation signal from a connected wireless receiver, ensuring safe and efficient charging only when the rechargeable wireless mouse is present.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the charging pad continuously outputs electromagnetic power for wireless charging, then the charging function is available, but power is wasted and damage may occur when no device is present
Solution Approach 1:
The charging control circuit continuously monitors the connection status of the wireless receiver through detection signals. When the receiver is disconnected or removed, the control circuit receives feedback and automatically stops electromagnetic power output, preventing both energy waste and potential damage from empty charging
Solution Approach 2:
The system performs preliminary detection of device presence before initiating full charging operation. The detection signal is sent in advance to verify connection status, and only when confirmation is received does the charging control circuit activate the wireless power transmitting module for full-power charging
2Ease of operation
If the charging pad activates wireless charging without detecting device presence, then charging is always available, but abnormal charging may damage the charging pad
Solution Approach 1:
The charging control circuit implements preliminary anti-action by sending detection signals before activating the wireless power transmitting module. This pre-detection mechanism prevents harmful empty charging by verifying device presence in advance, blocking the harmful effect before it can occur
Solution Approach 2:
The charging pad performs self-detection and self-protection through its control circuit that automatically monitors connection status and adjusts power output accordingly. The system serves itself by detecting device presence and regulating its own charging operation without external intervention
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
The solution prevents damage to the charging pad by stopping electromagnetic power output when the wireless receiver is disconnected and optimizes power usage by switching between energy-saving and working modes based on the presence of the wireless mouse, ensuring reliable and efficient charging.
Implementation Method 1
a wireless power transmitting module and a charging control circuit. The charging control circuit is electrically connected to the wireless power transmitting module. The charging control circuit correspondingly activates the wireless power transmitting module to wirelessly output the electromagnetic power
Data Source
AI summary
A wireless input device is provided. The wireless input device includes a rechargeable wireless mouse, a wireless receiver and a charging pad. The charging pad includes a wireless power transmitting module and a charging control circuit. The charging control circuit is electrically connected to the wireless power transmitting module. The charging control circuit correspondingly activates the wireless power transmitting module to wirelessly output the electromagnetic power according to an activation signal provided by the wireless receiver. The charging pad receives the activation signal when the wireless receiver is connected to the charging pad. When the charging pad is not connected to the wireless receiver, the charging control circuit stops the wireless power transmitting module from wirelessly outputting the electromagnetic power. Accordingly, the charging pad of the present invention can avoid damage resulting from the abnormal charging so as to save power.