Two-Stage Power Supply Conversion Circuit with Feedback Synchronization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing power supply conversion circuits for charging devices face challenges in improving charging speed and reducing heat generation, particularly in achieving efficient energy transfer and real-time voltage adjustment to meet the demands of devices being charged.
Innovation Solution
A power supply conversion circuit comprising a first voltage conversion circuit, a post-stage voltage conversion circuit, and a signal feedback circuit, where the signal feedback circuit synchronizes the first voltage conversion circuit with the post-stage voltage conversion circuit, allowing for real-time adjustments and improved energy transfer efficiency by feeding back information on the output of the post-stage voltage conversion circuit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single-stage voltage conversion circuit is used, then the device complexity is reduced, but the power conversion efficiency deteriorates and heat generation increases
Solution Approach 1:
The voltage conversion circuit is divided into two stages: a first voltage conversion circuit and a second voltage conversion circuit. The first stage performs initial voltage conversion with high step-up ratio, and the second stage performs final voltage conversion with low step-up ratio. This segmentation allows each stage to operate at optimal efficiency points, reducing overall energy loss and heat generation while maintaining manageable device complexity through modular design.
2Device complexity
If high voltage conversion ratio is achieved in a single stage, then the device structure is simplified, but the energy transfer efficiency deteriorates
Solution Approach 1:
The high voltage conversion ratio is achieved through segmented stages rather than a single stage. The first voltage conversion circuit handles the majority of the voltage step-up, while the second voltage conversion circuit performs the final adjustment. This approach maintains high energy transfer efficiency by avoiding the excessive stress and losses associated with single-stage high-ratio conversion.
3Adaptability or versatility
If real-time voltage adjustment is implemented, then the adaptability to different devices is improved, but the device complexity increases
Solution Approach 1:
A feedback circuit is implemented that receives output voltage information from the second voltage conversion circuit and feeds it back to control the first voltage conversion circuit. This feedback mechanism enables real-time voltage adjustment and synchronization between stages, improving adaptability to different charging devices while managing complexity through intelligent control rather than hardware complexity.
4Loss of energy
If two-stage voltage conversion is implemented, then the power conversion efficiency is improved, but the device complexity increases
Solution Approach 1:
The two-stage voltage conversion structure segments the power conversion process into distinct functional blocks. The first voltage conversion circuit and second voltage conversion circuit are connected in series, with each performing a specific portion of the voltage transformation. This segmentation improves power conversion efficiency by optimizing each stage's operating conditions while keeping the overall device complexity manageable through clear functional separation and modular design.
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 enhances charging speed, reduces heat generation, and improves power conversion efficiency by ensuring the first voltage conversion circuit operates in sync with the post-stage voltage conversion circuit, thereby optimizing energy transfer and reducing electromagnetic interference.
Implementation Method 1
a first voltage conversion circuit, configured to convert, in response to a voltage input to the first voltage conversion circuit exceeds a preset voltage range, the voltage input to the first voltage conversion circuit to be within the preset voltage range
Implementation Method 2
a post-stage voltage conversion circuit, configured to convert the converted voltage input to the post-stage voltage conversion circuit into a target voltage
Data Source
AI summary
A power supply conversion circuit and a charging device are provided. The power supply conversion circuit includes: a first voltage conversion circuit that converts a voltage when the voltage exceeds a preset voltage range and outputs the converted voltage; a post-stage voltage conversion circuit that receives the converted voltage and converts the converted voltage into a target voltage for outputting; and a signal feedback circuit that feeds back a signal to the first voltage conversion circuit according to the target voltage, so that the first voltage conversion circuit is synchronized with the post-stage voltage conversion circuit.