Power Converter Regulation Control for Smooth Transient Response
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Solution Overview
Problem
Existing regulated power converters face challenges in efficiently managing transient events due to the use of costly frequency detectors, which lead to abrupt and granular adjustments in regulation control parameters, resulting in delays and increased costs.
Innovation Solution
A method and apparatus that detect transient events and modify regulation control parameters using a parameter modification profile, allowing for smooth adjustments based on a function defined by the profile, eliminating the need for frequency detectors and reducing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If frequency detectors are used to detect transient events, then transient event detection capability is improved, but device cost increases
Solution Approach 1:
The patent extracts the frequency detection function from a separate dedicated detector and integrates it into the existing control system. The control system now detects transient events by monitoring changes in the regulation control parameter over time, eliminating the need for separate frequency detectors and reducing device cost while maintaining detection capability
Solution Approach 2:
The control system is given multiple functions: it both regulates the power converter and detects transient events by analyzing parameter changes. This multi-functionality eliminates the need for dedicated frequency detectors, reducing overall device complexity and cost while maintaining transient event detection capability
2Speed
If regulation control parameters are adjusted abruptly in granular steps, then response speed to transient events is improved, but control smoothness deteriorates
Solution Approach 1:
The patent applies dynamic adjustment of the regulation control parameter based on the detected transient event characteristics. The system modifies the parameter smoothly over time rather than making abrupt granular adjustments, allowing the control to adapt dynamically to transient events while maintaining smooth transitions and improving control stability
Solution Approach 2:
The system changes the regulation control parameter continuously based on the detected transient event rather than in discrete granular steps. By modifying the parameter according to the transient event's characteristics and allowing smooth transitions, the system achieves both fast response and control smoothness
3Measurement precision
If frequency detectors are used for transient event detection, then detection accuracy is improved, but device complexity increases
Solution Approach 1:
The patent removes the separate frequency detector component and extracts its detection function into the control system. The control system now determines transient events by analyzing the rate of change of the regulation control parameter, reducing device complexity while maintaining detection accuracy
Solution Approach 2:
The control system performs self-detection of transient events by monitoring its own regulation control parameter. This self-service approach eliminates the need for external frequency detectors, reducing device complexity while maintaining accurate transient event detection through analysis of parameter changes
Data Source
AI summary
An apparatus may include a regulated power converter, a control engine configured to control the regulated power converter based upon a regulation control parameter, and a parameter control system. The parameter control system may be configured to detect a transient event at an output of the regulated power converter. The parameter control system may be configured to modify, in response to the transient event, the regulation control parameter from a first value to a second value based upon a parameter modification profile. The parameter control system may be configured to modify, in response to modifying the regulation control parameter from the first value to the second value, the regulation control parameter according to a function of the parameter modification profile. The function may define a return of the regulation control parameter from the second value to the first value over a period of time.