Power Converter Control Using Transient Period Detection
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Solution Overview
Problem
Existing power conversion systems require costly frequency detectors to control regulation parameters, leading to delayed adjustments and abrupt changes, which are inefficient and costly, especially when more frequency ranges are added.
Innovation Solution
A method and apparatus that monitor transient events at the output of a regulated power converter to determine transient event periods, allowing for dynamic adjustment of regulation control parameters without the need for frequency detectors, enabling smoother and quicker responses to frequency changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If frequency detectors are used to control regulation parameters, then frequency detection capability is improved, but system cost and complexity increase
Solution Approach 1:
The patent extracts the frequency detection function from a separate frequency detector component and integrates it into the control engine by using existing transient event detection capabilities. The control engine directly monitors transient events and determines frequency information without requiring an external frequency detector, thereby eliminating unnecessary components while maintaining frequency detection capability.
Solution Approach 2:
The control engine is designed to perform multiple functions: it not only controls the regulated power converter but also detects transient events and determines their frequency. This multi-functionality eliminates the need for separate frequency detection hardware, reducing system complexity and cost while maintaining the required measurement precision.
2Measurement precision
If traditional frequency detection methods are used, then frequency ranges can be monitored, but response time is delayed and adjustments are abrupt
Solution Approach 1:
The control engine continuously monitors transient events and maintains readiness to detect frequency changes before they require correction. By having the detection mechanism already in place and active, the system can immediately respond to frequency deviations without the delays associated with traditional frequency detection methods that may require signal conditioning or threshold validation before triggering a response.
Solution Approach 2:
The system implements continuous feedback by monitoring transient events and using the determined frequency information to dynamically adjust regulation control parameters. This closed-loop feedback mechanism enables smooth, continuous adjustments rather than abrupt changes, improving response time and stability.
3Adaptability or versatility
If more frequency ranges are added to the detection system, then monitoring capability is improved, but system cost and complexity increase significantly
Solution Approach 1:
The system dynamically adapts to different frequency ranges by analyzing the characteristics of transient events rather than using fixed frequency bands. The control engine can adjust its monitoring focus and parameter settings based on the observed transient event frequency, enabling versatile frequency range coverage without requiring multiple dedicated detection circuits for each frequency band.
Solution Approach 2:
The system achieves extended frequency range monitoring by changing the parameters of transient event analysis rather than adding hardware. By adjusting detection thresholds, sampling rates, and analysis windows, the control engine can effectively monitor a wide range of frequencies using the same underlying mechanism, avoiding the cost and complexity of expanding hardware for each frequency range.
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, a period detection system and a parameter control system. The period detection system may be configured to monitor a signal to detect transient events at an output of the regulated power converter, wherein the transient events include a first transient event and a second transient event after the first transient event. The period detection system may be configured to determine, in response to the second transient event, a transient event period between the first transient event and the second transient event. The period detection system may be configured to determine transient event period information based upon the transient event period. The parameter control system may be configured to set the regulation control parameter to a value determined based upon the transient event period information.