A kind of 2-phase interleaving coupled magnetic
integrated VRM is studied and the corresponding passivity-based control
strategy is put forward. The model of this kind of magnetic integrated VRM is
constructed, and the performance of this 2-phase interleaving magnetic
integrated VRM of passivity-based control is verified by simulation
experiments. The results proved that this kind of passivity-based control
strategy can decrease the steady state current ripple and the dynamic output
voltage under load disturbance.
P. Xu, M. Ye and F. C. Lee, “Single Magnetic Push-pull forward Converter Featuring Built in Input Filter and Coupled-inductor Current Doubler for 48V VRM,”IEEE Proceedings of APEC, Vol. 2, No. 3, 2002, pp.843-849.
L. P. Wong,Y. S. Lee and D. K. W. Cheng, “Simulation and Design of Integrated Magnetics for Power Converters,” IEEE Transactions on magnetics, Vol. 39, No. 2, 2003, pp.1008-1018. doi:10.1109/TMAG.2003.808579