DC/DC Converter Optimization Circuit for Dynamic Efficiency
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Solution Overview
Problem
Conventional DC/DC converters face inefficiencies due to varying operating conditions, such as supply voltage and load variations, as their design is typically optimized for estimated conditions rather than real-time adjustments.
Innovation Solution
A DC/DC converter system with an optimization circuit that iteratively adjusts adjustable operating parameters, such as operating frequency, switching transistor size, control voltage, and switching speed, based on real-time supply current measurements to achieve optimal effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the DC/DC converter design is optimized for estimated operation conditions, then the design can be completed with fixed parameters, but the effectiveness deteriorates when operating conditions vary
Solution Approach 1:
The patent applies dynamics by making the operating parameters adjustable during operation. The DC/DC converter includes multiple operating parameters (such as switching frequency, duty cycle, etc.) that can be dynamically changed based on actual operating conditions. The optimization circuit iteratively adjusts these parameters to maintain optimal effectiveness when supply voltage or load conditions vary, resolving the contradiction between fixed design and variable performance.
2Device complexity
If operating parameters are fixed in design, then the converter structure is simple, but the effectiveness varies with operating conditions
Solution Approach 1:
The patent implements feedback through an optimization circuit that continuously monitors the operating conditions (supply voltage, load current) and iteratively adjusts the operating parameters to maintain optimal effectiveness. The feedback loop compares actual performance with target performance and makes real-time parameter adjustments, allowing the system to adapt to varying conditions without requiring complex reconfiguration of the converter structure itself.
3Ease of operation
If the DC/DC converter operates without knowledge of operating conditions, then the control is simple, but the operation efficiency is suboptimal
Solution Approach 1:
The patent applies self-service by enabling the DC/DC converter to automatically determine and adjust its own optimal operating parameters without external control input. The optimization circuit internally monitors operating conditions (such as supply current measurements) and autonomously iterates through parameter adjustments to find the optimal operating point. This self-adjusting mechanism maintains ease of operation while significantly improving energy efficiency compared to fixed-parameter designs.
Data Source
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AI summary
A DC/DC converter system comprises a DC/DC converter (10), which is configured to generate, in a switched fashion, an output voltage from an input voltage supplied at a supply terminal and has at least one adjustable operating parameter, and comprises an optimization circuit (20). The optimization circuit (20) is configured to select one of the least one adjustable operating parameters and, for the selected operating parameter, to iteratively determine a supply current provided at the supply terminal, determine an effectiveness of the DC/DC converter based on the determined supply current and adjust the selected operating parameter until an optimum effectiveness is determined.