Voltage Supply Circuit with Multi-Inductor Segmentation for Power Loss Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Multi-phase voltage suppliers face inefficiencies due to resistance values of inductors, particularly AC and DC resistance, which are not optimally managed across different loading states, leading to suboptimal power loss and efficiency.
Innovation Solution
A voltage supply circuit with multiple inductors and driver circuits, where the inductance values and driving voltages are dynamically adjusted based on loading current thresholds to minimize power loss by prioritizing inductors with appropriate resistance values for AC and DC conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If multiple inductors with different inductance values are used in a multi-phase voltage supplier, then efficiency can be enhanced in different loading states, but the device complexity increases due to having multiple inductors with different specifications
Solution Approach 1:
The patent divides the inductor system into multiple independent inductors (first inductor, second inductor, third inductor) with different inductance values, where each inductor is assigned to specific loading states. This segmentation allows the system to select the most appropriate inductor for each operating condition, minimizing power loss while managing complexity through modular design.
Solution Approach 2:
The patent implements dynamic switching between different inductors based on loading current thresholds. The controller dynamically selects which inductor to activate (first inductor for low loading, second or third inductors for higher loading) according to real-time operating conditions, enabling the system to adapt to varying load requirements and optimize efficiency across different states.
2Loss of energy
If inductors with larger inductance values are used, then AC resistance losses are reduced in less-loading states, but the inductors occupy more area and increase device size
Solution Approach 1:
The patent applies local quality by assigning different inductance values to different inductors based on specific operating conditions. The first inductor has a larger inductance value optimized for less-loading states to minimize AC resistance losses, while the second and third inductors have smaller inductance values suitable for higher loading states. This localized optimization ensures each inductor is sized appropriately for its intended operating range.
Solution Approach 2:
The system dynamically switches between inductors with different inductance values based on loading current thresholds. When loading current is below the first threshold, the first inductor with larger inductance is activated to reduce AC resistance losses. When loading current exceeds thresholds, the system switches to second or third inductors with smaller inductance values, thereby reducing the occupied area during high-loading operations.
3Power
If multiple driver circuits are enabled simultaneously, then higher loading currents can be supplied, but power loss increases due to resistance values of multiple active inductors
Solution Approach 1:
The patent implements dynamic control of driver circuit activation based on loading current thresholds. The controller enables a specific number of driver circuits and corresponding inductors according to the required loading current. By optimizing the combination of active inductors and their driving voltages, the system can supply higher loading currents while minimizing power loss through intelligent selection of which inductors to activate.
Solution Approach 2:
The patent changes operating parameters (number of enabled driver circuits, selection of inductors with different inductance values, and adjustment of driving voltages) based on loading requirements. This parameter optimization allows the system to achieve the desired loading current while minimizing power loss by selecting the most efficient inductor configuration for each operating state.
Data Source
AI summary
A voltage supply circuit is provided. The voltage supply circuit is capable of operating at a first mode and generates a loading current at an output node. The voltage supply circuit includes a plurality of inductors and a plurality of drier circuits. The plurality of inductors are coupled to the output node. Each inductor has an inductance value. The plurality driver circuits are coupled to the plurality of inductors respectively. The inductance value of a first inductor among the plurality of inductors is greater than the inductance values of the other inductor.