Magnetic Induction Circuit for Precise Voltage Control
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Solution Overview
Problem
Current magnetic induction technologies face challenges in achieving accurate and continuous voltage adjustment due to their single configuration, leading to poor control accuracy and limited adjustment range, affecting user experience, such as fixed lamp brightness levels.
Innovation Solution
A magnetic induction circuit comprising a magnetic induction module, a voltage comparison module, and a voltage output module, where the magnetic induction module senses an external magnetic field, and the voltage comparison module adjusts the output based on a reference voltage, enabling adjustable voltage output through a bipolar linear Hall-effect sensor and operational amplifiers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single magnetic-induction component configuration is used, then the device structure is simple, but the voltage adjustment precision and control accuracy are poor
Solution Approach 1:
The patent divides the voltage control function into multiple stages by introducing a multi-stage voltage division circuit. The circuit includes multiple voltage division units with different resistance ratios, allowing the output voltage to be divided into multiple discrete levels. This segmentation enables precise voltage adjustment without requiring a single complex high-precision component.
Solution Approach 2:
The patent employs dynamic switching between different voltage division configurations. By using switching elements to dynamically connect different voltage division units based on control signals, the system can adaptively adjust the voltage output to multiple predefined levels, achieving continuous voltage control through dynamic reconfiguration rather than static single-configuration design.
2Measurement precision
If buttons and touch sensors are used for voltage output control, then the control interface is simple, but the control accuracy and adjustment precision are poor
Solution Approach 1:
The patent replaces traditional mechanical buttons and touch sensors with a magnetic field-based control system. A magnetic induction component detects the position of a magnetic body, and this position information is used to control the switching of different voltage division units. This substitution eliminates the need for direct mechanical contact or complex touch detection while achieving high-precision position-based voltage control.
Solution Approach 2:
The patent introduces a magnetic body as an intermediary between the user and the voltage control system. The user moves the magnetic body to different positions, and the magnetic induction component translates this position into corresponding voltage levels through the multi-stage voltage division circuit. This intermediary approach provides intuitive and accurate control without requiring direct interaction with buttons or sensors.
3Adaptability or versatility
If fixed voltage levels are output, then the circuit design is simple, but the adaptability and continuous control capability are limited
Solution Approach 1:
The patent designs a universal voltage control circuit that can output multiple voltage levels through a single multi-stage voltage division configuration. The circuit includes multiple voltage division units that can be selectively activated to provide different voltage levels, making the system adaptable to various voltage requirements without needing separate circuits for each voltage level.
Solution Approach 2:
The patent achieves continuous voltage control by changing the resistance ratios in the voltage division units. Each voltage division unit has a specific resistance ratio that determines the output voltage level. By switching between different resistance ratio configurations, the system can continuously adjust the output voltage across a wide range, transforming fixed voltage output into variable voltage output through parameter changes.
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 configuration allows for precise multi-stage voltage adjustment and continuous control, improving user experience by enabling smooth adjustments beyond fixed levels, such as gradual lamp brightness control.
Implementation Method 1
a magnetic induction module; wherein the magnetic induction module is configured to sense an external magnetic field and output a first voltage signal
Implementation Method 2
In an embodiment, the magnetic induction module comprises a bipolar linear Hall-effect sensor
Data Source
AI summary
A magnetic induction circuit, a magnetic-controlled switch circuit, a magnetic-controlled device and a magnetic-controlled lamp. The magnetic induction circuit includes a magnetic induction module, a voltage comparison module and a voltage output module. The magnetic induction module is configured to sense an external magnetic field to generate a first voltage signal. The voltage comparison module is configured to receive the first voltage signal, and output a second voltage signal. The voltage output module is configured to process the second voltage signal and output a third voltage signal.