Charge Device Voltage Threshold Detection Circuit
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Solution Overview
Problem
Current power banks of varying quality can damage mobile devices during charging, and users face issues with urgent communication or tasks when devices run out of power without access to power adapters or high-quality charging solutions.
Innovation Solution
A charge device comprising a power storage, transmission circuit, and determination circuit that checks if the output voltage is sufficient before generating a charge voltage signal, ensuring safe and effective charging by only charging when the power storage has sufficient power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If power banks with low quality are used to charge mobile devices, then charging availability is improved, but device safety deteriorates due to potential damage from insufficient power
Solution Approach 1:
The determination circuit performs preliminary detection of the power bank's output voltage before enabling charging. The transmission circuit is controlled to transmit the voltage signal to the determination circuit in advance, allowing the controller to assess whether the power bank has sufficient power (above threshold) before activating the charging function, thus preventing device damage from low-quality power banks
Solution Approach 2:
The determination circuit acts as an intermediary between the power bank and the mobile device charging system. It receives the output voltage signal from the power bank through the transmission circuit, evaluates the voltage level, and provides a determination result to the controller that controls whether charging is permitted, thereby protecting the device from unsafe power sources
2Reliability
If voltage detection and determination circuits are added to the charge device, then charging safety is improved, but device complexity increases
Solution Approach 1:
The determination circuit and transmission circuit are integrated into the charge device's existing structure. The determination circuit is electrically connected to receive the output voltage signal from the power bank, and the transmission circuit is controlled based on the determination result, merging safety detection functions with the charging control system in a coordinated manner
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
Prevents damage to mobile devices by ensuring they are only charged when the power storage has sufficient power, allowing for reliable and safe charging, even when using lower-quality power banks or without access to traditional power adapters.
Implementation Method 1
The transmission circuit receives the output voltage signal. When a voltage of the detection node is at a predetermined level, the transmission circuit transmits the output voltage signal to the first node
Implementation Method 2
The determination circuit determines whether a voltage value of the output voltage signal is greater than a threshold. When the determination circuit determines that the voltage value of the output voltage signal is greater than the threshold, the charge device generates a charge voltage signal according to the output voltage signal
Data Source
AI summary
A charge device is provided. The charge device includes a power storage, a transmission circuit, and a determination circuit. The power storage provides an output voltage signal. The transmission circuit is electrically connected to a first node and a detection node. The transmission circuit receives the output voltage signal. When a voltage of the detection node is at a predetermined level, the transmission circuit transmits the output voltage signal to the first node. The determination circuit is electrically connected to the first node. The determination circuit determines whether a voltage value of the output voltage signal is greater than a threshold. When the determination circuit determines that the voltage value of the output voltage signal is greater than the threshold, the charge device generates a charge voltage signal according to the output voltage signal.