Modeling and Design for a Novel Adaptive Voltage Positioning (AVP) Scheme for Multiphase VRMs

@article{Lee2008ModelingAD,
  title={Modeling and Design for a Novel Adaptive Voltage Positioning (AVP) Scheme for Multiphase VRMs},
  author={M. Lee and Dan Chen and Kengyi Huang and Chih-Wen Liu and Ben Tai},
  journal={IEEE Transactions on Power Electronics},
  year={2008},
  volume={23},
  pages={1733-1742}
}
Adaptive voltage positioning (AVP) has been used in multiphase voltage regulator module (VRM) applications. A novel scheme, called AVP+, is analyzed in this paper. Small signal model is used to look into the control performance issues such as output impedance and stability. The model has been verified in the experiments and simulations. Compared to a conventional AVP schemes, the present scheme provides better stability margin and output- impedance performance. This is especially true for the… CONTINUE READING
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