DC/DC Converter Transient Response via Reactive Trim Pin
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Solution Overview
Problem
Commercially available DC/DC converter modules have transient response characteristics that are suboptimal for specific loads, leading to poor power quality and system effectiveness, as they are designed to accommodate a wide range of loads rather than individual load requirements.
Innovation Solution
A circuit and method that utilize a reactive component coupled to the output rail and trim pins of the DC/DC converter module to interact with internal networks, allowing the transient response characteristics to be tailored to a particular load without modifying the module's package or external interface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a standard prepackaged DC/DC converter module is used, then the module can accommodate a wide array of possible loads, but the transient response characteristics become suboptimal for any particular load
Solution Approach 1:
The patent applies local quality by adding external compensation components (capacitors and resistors) connected to specific pins (COMP pin, FB pin, or trim pin) of the DC/DC converter module. These components locally modify the feedback network characteristics to optimize transient response for a particular load type, while the module itself remains a standard prepackaged unit capable of working with various loads.
2Reliability
If a custom DC/DC converter is designed for a particular load, then the transient response characteristics are optimized, but the cost increases significantly
Solution Approach 1:
The patent makes standard DC/DC converter modules multi-functional by enabling them to serve both as universal modules (working with various loads) and as optimized modules (with improved transient response for specific loads). The external compensation components allow a single standard module design to adapt to different load requirements without requiring custom module designs for each application.
3Ease of operation
If the module package and external interface are kept intact, then ease of installation is maintained, but the ability to optimize transient response is limited
Solution Approach 1:
The patent uses external compensation components as intermediary elements that connect to the standard module pins (COMP, FB, or trim pins) to modify the control circuit's behavior. These intermediaries enable transient response optimization without requiring any modification to the module package or external interface, maintaining installation simplicity while achieving load-specific optimization.
Data Source
AI summary
A circuit for, and method of, changing transient response characteristics of a DC/DC converter module having an output rail pin and a trim pin and a distributed power conversion system incorporating the system or the method. In one embodiment, the system includes a reactive component coupled to the output rail pin and the trim pin of the DC/DC converter module and configured to interact with at least one network internal to the DC/DC converter module to change the transient response characteristics.