Power Conversion Module Control for Parameter-Matched Output

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Solution Overview

Problem

Existing output devices are not energy efficient due to their multi-level conversion circuits, which fail to optimize power supply parameters for efficient power conversion.

Innovation Solution

A control apparatus and method that includes an acquisition unit to obtain a first power supply parameter and a controller to control a second conversion module to operate based on this parameter, ensuring a target power supply parameter output by the second conversion module matches the first power supply parameter, thereby optimizing power conversion and efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multi-level conversion circuits are used to meet power supply needs, then power supply adaptability is improved, but energy efficiency deteriorates

Engineering Contradiction:
Improvepower supply adaptabilityVSAvoidenergy efficiency
Core Design Contradiction:
Adaptability or versatilityVSLoss of energy

Solution Approach 1:

The power conversion system is divided into multiple independent conversion modules, each capable of operating autonomously. The controller selectively activates only the necessary modules based on power supply parameters, avoiding the energy waste of operating all modules in multi-level conversion circuits.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system dynamically adjusts which conversion modules operate based on real-time power supply parameters. The controller enables or disables modules according to matching conditions between target power supply parameters and actual power supply parameters, making the system adaptable while energy-efficient.

Inventive Principle:
Principle #15Dynamics

2Device complexity

If conversion modules operate without parameter matching optimization, then device complexity is reduced, but energy efficiency deteriorates

Engineering Contradiction:
Improvecontrol complexityVSAvoidpower conversion efficiency
Core Design Contradiction:
Device complexityVSLoss of energy

Solution Approach 1:

The controller receives power supply parameters from the acquisition unit and uses this feedback to determine which conversion modules should operate. This feedback mechanism enables parameter-matched operation without requiring complex manual control, improving energy efficiency while maintaining manageable system complexity.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The conversion modules automatically operate based on whether their target power supply parameters match the actual power supply parameters. The system self-regulates which modules are active without requiring complex external control, achieving energy efficiency with minimal control complexity.

Inventive Principle:
Principle #25Self-service

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

The solution enhances the overall energy efficiency of the output device by ensuring the target power supply parameter matches the required power supply parameter, reducing unnecessary power waste and improving the device's power conversion efficiency.

Implementation Method 1

The second conversion module is connected to the first conversion module and configured to perform power conversion on power obtained by the output device and output the converted first DC power to the first conversion module. The power conversion includes converting alternative current (AC) into DC or DC to DC.

Methodology Applied
Scientific EffectPower conversion:

Implementation Method 2

The first conversion module is configured to convert first direct current (DC) power obtained by the first conversion module into second DC power and output the second DC power. A voltage of the first DC power and a voltage of the second DC power are same or different.

Methodology Applied
Scientific EffectDC to DC conversion:

Data Source

PatentUS20250149962A1Control method, control apparatus, and output device
Publication Date: 2025.05.08 LENOVO (BEIJING) LTD
  • US20250149962A1 patent drawing
  • US20250149962A1 patent drawing
  • US20250149962A1 patent drawing

AI summary

A control apparatus includes an acquisition unit and a controller. The acquisition unit is configured to obtain a first power supply parameter of a first output interface connected to a first conversion module of an output device. The controller is configured to control a second conversion module of the output device to operate according to the first power supply parameter to cause a target power supply parameter output by the second conversion module to satisfy a matching condition with the first power supply parameter. The first conversion module is configured to convert power output by the second conversion module with the target power supply parameter into power with the first power supply parameter and output the power with the first power supply parameter via the first output interface.