Design and implementation of a neural network controller for real-time adaptive voltage regulation

An adaptive controller based on multi-layer feed-forward neural network is developed for real-time voltage regulation of a class of PSFB (phase-shifted full-bridge) DC-DC converters. The controller has the unique advantages of nonlinear mapping and adaptive learning. and performs well over a wide range of input voltages and output load currents. The controller is implemented and tested in hardware using a OSP (digital signal processor) board. Experimental results show that it outperforms conventional controllers in both line regulation and load regulation.