Fuzzy Logic Controller Improves Power Converter Speed
The design achieves faster settling times and tighter voltage regulation than standard industry control methods.
Updated on Oct. 25, 2026 in Energy
Researchers have developed a fuzzy logic-based controller for a single-input dual-output DC-DC converter. This research-stage method significantly improves voltage regulation and response times compared to traditional proportional-integral controllers.
Why it matters
Efficient power conversion is critical for stabilizing voltage in multi-output systems, and this approach provides a more precise alternative to conventional industrial control methods.
The fuzzy logic controller achieved a settling time of 3.24 ms for the 24 V output, compared to 5.83 ms for a standard proportional-integral controller. On the 12 V rail, it reduced settling time to 5.29 ms, down from 19.95 ms, while improving voltage regulation to 1.25% from 2.16%.
The details
The controller uses fuzzy logic—a mathematical framework that handles variable truth values rather than binary states—to adjust power delivery dynamically. Validation occurred on a TMS320F28379D microcontroller, a device designed for real-time signal processing. The system employs closed-loop configuration with sensor-based feedback to continuously monitor and correct the 48 V input as it splits into regulated 24 V and 12 V outputs.
Timeline
The findings were published on October 25, 2026.
The Tech Race
This controller architecture represents a shift away from traditional proportional-integral control loops in power electronics. By adopting fuzzy logic, it aims to surpass the limitations of conventional regulation in multi-output power systems.
This research provides a more stable power output for multi-rail devices, potentially improving performance in hardware that requires precise voltage management. It remains in the experimental phase, meaning it is not yet implemented in commercial power hardware.
The takeaway
Fuzzy logic control significantly outperforms legacy methods in speed and precision for multi-output converters. Future validation will focus on whether these results hold under varying load conditions in production environments.
Further reading
Explore more developments in power regulation at the Energy section.
