DC Power Supply Adaptive Offset Control
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Solution Overview
Problem
Existing DC power supplies have a limited range of application due to the fixed setting range of components like potentiometers, restricting their use across different loads despite their ability to adjust for various balancing needs between efficiency, ripple & noise, and control behavior.
Innovation Solution
A DC power supply with feedback-controlled preregulators and postregulators, along with a control unit that adjusts voltage or current offsets in a feedback loop, allowing for flexible balancing between efficiency, ripple & noise, and control behavior, enabling use across a wider variety of loads without the need for multiple power supplies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed potentiometer setting range is used in the power supply, then the device complexity is reduced and manufacturing is simplified, but the adaptability to different loads is limited
Solution Approach 1:
The patent implements dynamic adjustability of the offset voltage range through a control unit that can modify the offset voltage beyond fixed potentiometer limitations. This allows the power supply to adapt to different load requirements dynamically, resolving the contradiction between fixed simplicity and adaptive versatility.
Solution Approach 2:
The patent changes the offset voltage parameter dynamically through a control unit that adjusts the offset voltage based on load requirements. This parameter change capability expands the application range without requiring complete redesign of the power supply architecture.
2Adaptability or versatility
If multiple power supplies with different configurations are used for different loads, then the adaptability to various loads is improved, but the device complexity and cost increase
Solution Approach 1:
The patent creates a universal power supply that can handle different load types (constant voltage, constant current, battery charging) through a single device. The control unit enables this power supply to perform multiple functions by dynamically adjusting offset voltage, eliminating the need for multiple specialized power supplies.
Solution Approach 2:
The patent implements dynamic reconfiguration capabilities that allow the power supply to switch between different operating modes (constant voltage, constant current, battery charging) based on load requirements. This dynamic adaptability provides multi-functionality without requiring separate dedicated power supplies for each application.
3Adaptability or versatility
If the offset voltage range is expanded to cover more application areas, then the adaptability is improved, but the control complexity increases
Solution Approach 1:
The patent implements feedback control mechanisms where the control unit monitors load conditions and automatically adjusts the offset voltage to optimal values. This feedback-based approach simplifies the control of expanded voltage ranges by using automated adjustment rather than manual configuration.
Solution Approach 2:
The control unit performs self-adjustment of the offset voltage based on detected load conditions, eliminating the need for complex manual control mechanisms. The system serves itself by automatically configuring the appropriate voltage range for different application scenarios.
Data Source
AI summary
A DC power supply and a method for operating a DC power supply, wherein the DC power supply comprises at least one feedback-controlled preregulator, at least one feedback-controlled postregulator supplied by the feedback-controlled preregulator, output terminals for supplying regulated constant current or regulated constant voltage to a load, and a control unit for controlling at least one of the feedback-controlled preregulator and the feedback-controlled postregulator, and designed for adjusting a voltage offset or a current offset added to a signal in a feedback loop of at least one of the feedback-controlled preregulator and the feedback-controlled postregulator.