Current Transformer Module Dynamic Coil Switching
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Solution Overview
Problem
Current power supply systems for IoT devices installed in inaccessible locations face challenges in providing constant power due to fluctuating current states in power lines, leading to increased maintenance costs and power loss.
Innovation Solution
A current transformer module with a magnetic core and multiple unit coils, connected through a switch unit that adjusts its series or parallel configuration based on detected voltage, allowing for dynamic power induction ratio adjustment to maintain constant power output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If power is induced from the power line using a current transformer, then power supply is enabled for IoT devices, but the power loss increases when the current of the power line is large
Solution Approach 1:
The patent applies dynamics by making the connection configuration of unit coils switchable between series and parallel modes. The switch unit dynamically reconfigures the coil connections based on the detected current state of the power line, transforming a static transformer into an adaptive system that optimizes power induction efficiency under varying load conditions.
Solution Approach 2:
The patent changes the electrical parameters (connection topology) of the current transformer based on the power line current state. By switching between series and parallel coil configurations, the system adjusts its effective impedance and power induction characteristics to minimize losses while maintaining adequate power supply capability.
2Power
If the current state of the power line fluctuates, then power induction varies, but constant power output cannot be maintained
Solution Approach 1:
The patent implements feedback by using a detection unit to monitor the current state of the power line and feed this information back to the control unit. The control unit then adjusts the switch unit's configuration based on this feedback, creating a closed-loop control system that maintains stable power output despite fluctuations in the power line current.
Solution Approach 2:
The system dynamically adapts to current fluctuations by continuously monitoring the power line state and reconfiguring the coil connections in real-time. This dynamic response allows the transformer to maintain constant power output by adjusting its induction characteristics according to the instantaneous current conditions.
3Power
If multiple unit coils are used to maintain constant power, then power stability improves, but device complexity increases
Solution Approach 1:
The patent segments the current transformer into multiple independent unit coils that can be independently connected in series or parallel. This segmentation allows flexible reconfiguration to achieve desired power output levels while using simple, modular components rather than a single complex winding structure.
Solution Approach 2:
Each unit coil serves multiple functions: it can operate independently or in combination with other coils, and the same set of coils can be reconfigured for different power output requirements. This multi-functionality reduces the need for separate components for different operating conditions, thereby managing complexity.
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 minimizes power loss and reduces the complexity and capacity of the power generation and storage system, enhancing power supply efficiency and reducing manufacturing costs by adapting to changing current states in the power line.
Implementation Method 1
a voltage is generated through magnetic induction when a current flows through a power line
Data Source
AI summary
A power supply device includes a current transformer module capable of adjusting a power induction ratio in order to induce a certain power even when the current of a power line is changed and the current transformer module capable of minimizing the loss in power conversion while providing a certain power even when the current of the power line is changed. The disclosed current transformer module includes a magnetic core constituting a closed loop, a plurality of unit coils wound around the magnetic core, and a switch unit connected to the plurality of unit coils, and the plurality of unit coils include a plurality of unit coils for power-generation.