A Behavior Model of Voltage Regulator Module with Adaptive Voltage Positioning and PCB Parasitics for Power Distribution Network Design
In this paper, a behavior modeling method of a buck converter with adaptive voltage positioning (AVP) and PCB parasitics for power distribution network design (PDN) is introduced. The behavior model of voltage regulator module (VRM) is previously proposed for the power integrity modeling and analysis. The proposed behavior model is applied to the buck VRM in a practical high-speed digital board. For the completeness of the behavior model, an AVP design and PCB parasitics are applied to reproduce the power supply rail noise in the practical design. To validate the behavior model, the design parameters of voltage and current controllers of buck VRM in the board are extracted based on the measurement. The proposed model shows a good correlation with the measurement under various loading conditions.
J. Joo et al., "A Behavior Model of Voltage Regulator Module with Adaptive Voltage Positioning and PCB Parasitics for Power Distribution Network Design," Proceedings of the 2021 Joint IEEE International Symposium on EMC/SI/PI, and EMC Europe (2021, Raleigh, NC), pp. 1139 - 1143, Institute of Electrical and Electronics Engineers (IEEE), Aug 2021.
The definitive version is available at https://doi.org/10.1109/EMC/SI/PI/EMCEurope52599.2021.9559163
2021 IEEE International Joint Electromagnetic Compatibility Signal and Power Integrity and EMC Europe Symposium, EMC/SI/PI/EMC Europe 2021 (2021: Jul. 26-Aug. 13, Raleigh, NC)
Electrical and Computer Engineering
Electromagnetic Compatibility (EMC) Laboratory
Keywords and Phrases
Adaptive Voltage Positioning (AVP); Buck Voltage Regulator Module (VRM); PCB Parasitics; Power Distribution Network (PDN)
International Standard Book Number (ISBN)
Article - Conference proceedings
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13 Aug 2021