Charging Circuit Management Device for Wireless Terminal
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing charging circuits for portable wireless terminals suffer from high energy loss and low charging efficiency due to unnecessary voltage differences across the charging tube, especially when using USB interfaces, which impede heat dissipation and reliability.
Innovation Solution
A management device for a charging circuit incorporating a power supply management module with an adjustable Low Dropout (LDO) linear regulator and a buck switching voltage converter, which automatically adjusts the charging voltage to minimize voltage drop and energy loss by sampling battery power and feeding back the output voltage to the buck switching voltage converter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a linear charging circuit is used with USB interface, then charging convenience and data transmission capability are improved, but energy loss increases and charging efficiency decreases due to voltage difference across the charging tube
Solution Approach 1:
The patent implements dynamic voltage adjustment by switching between different charging paths (linear charging circuit and buck charging circuit) based on real-time voltage conditions. The management device dynamically selects the optimal charging path to minimize energy loss while maintaining charging convenience, resolving the contradiction between ease of operation and energy efficiency.
Solution Approach 2:
The patent changes the charging voltage parameter dynamically by detecting the voltage difference across the charging tube and switching charging modes accordingly. When the voltage difference exceeds a threshold, the system switches from linear charging to buck charging, thereby reducing energy loss while maintaining operational convenience.
2Productivity
If the voltage difference across the charging tube is reduced to minimize energy loss, then charging efficiency is improved, but the ability to handle varying battery voltage conditions becomes more complex
Solution Approach 1:
The patent introduces a management device as an intermediary that intelligently controls the switching between linear charging circuit and buck charging circuit. This intermediary component simplifies the overall system complexity by centralizing the control logic, while enabling efficient voltage management and maximizing charging efficiency through automated path selection.
3Adaptability or versatility
If USB interface is used for both data transmission and charging, then interface versatility is improved, but heat dissipation capability deteriorates due to increased power consumption
Solution Approach 1:
The patent converts the harmful effect of high power consumption (which causes heat) into a beneficial control mechanism. By monitoring the power consumption and voltage difference, the system intelligently switches to buck charging mode when necessary, transforming the potential harm of high current into a trigger for efficiency optimization, thereby reducing heat dissipation while maintaining interface versatility.
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
This solution reduces energy loss and improves charging efficiency by maintaining a lower voltage difference across the charging circuit, enhancing heat dissipation and reliability while maintaining sufficient charging current, thus increasing the overall efficiency of the charging process.
Implementation Method 1
an output terminal of the adjustable LDO linear regulator is connected with a feedback terminal of the buck switching voltage converter through a first preset resistor
Implementation Method 2
a buck switching voltage converter... configured to output a voltage to the linear charging circuit according to the feedback result
Implementation Method 3
an input terminal of the ADC is connected with an anode of a battery... configured to sample battery power
Implementation Method 4
the linear charging circuit... configured to charge the battery under the control of the power supply management module
Data Source
AI summary
The present disclosure provides a management device for a charging circuit and a wireless terminal, which belong to the technical field of management control of a linear charging circuit. The device includes a power supply management module (5), a buck switching voltage converter (1) and a linear charging circuit (2). The power supply management module (5) includes an adjustable Low Dropout (LDO) linear regulator (6) and an Analog-to-Digital Converter (ADC) (4), wherein the output terminal of the adjustable LDO linear regulator (6) is connected with the feedback terminal of the buck switching voltage converter (1) through a first preset resistor (R62). The input terminal of the ADC (4) is connected with the anode of a battery (3). The control terminal of the power supply management module (5) is connected with the control terminal of the linear charging circuit (2). The output terminal of the buck switching voltage converter (1) is connected with the input terminal of the linear charging circuit (2). The output terminal of the linear charging circuit (2) is connected with the anode of the battery (3). With the device, the energy loss can be reduced and the whole power loss can be reduced.