Doctoral Dissertations

Jingdong Sun

Keywords and Phrases

Analytical Modeling; Device Characterization; Power Distribution Network; Power Integrity; System Optimization; Wireless Power Transfer

Abstract

“Power delivery is essential in electronic systems to provide reliable power from voltage sources to load devices. Driven by the ambitious user demands and technology evolutions, the power delivery design is posed serious challenges. In this work, we focus on modeling two types of power delivery paths: the power distribution network (PDN) and the wireless power transfer (WPT) system.

For the modeling of PDN, a novel pattern-based analytical method is proposed for PCB-level PDN impedance calculations, which constructs an equivalent circuit with one-to-one correspondences to the PCB’s physical structure. A practical modeling methodology is also introduced to optimize the PDN design. In addition, a topology-based behavior model is developed for the current-mode voltage regulator module (VRM). This model includes all the critical components in the power stage, the voltage control loop, and the current control loop of a VRM device. A novel method is also proposed to unify the modeling of the continuous and discontinuous conduction modes for transient load responses. Cascading the proposed VRM model with the PCB-level PDN model enables a combined PDN analysis, which is much needed for modern PDN designs.

For the modeling of WPT system, a system-level model is developed for both efficiency and power loss of all the blocks in WPT systems. A rectifier characterization method is also proposed to obtain the accurate load impedance. This model is capable of deriving the power capabilities for both the fundamental and higher order harmonics. Based on the system model, a practical design methodology is introduced to simultaneously optimize multiple system parameters, which greatly accelerates the design process”--Abstract, page iv.

Advisor(s)

Fan, Jun, 1971-

Committee Member(s)

Kim, DongHyun (Bill)
Khilkevich, Victor
Hwang, Chulsoon
Zhang, Yaojiang

Department(s)

Electrical and Computer Engineering

Degree Name

Ph. D. in Electrical Engineering

Comments

This dissertation is based upon work supported partially by the National Science Foundation (NSF) under Grant No. IIP-1916535.

Publisher

Missouri University of Science and Technology

Publication Date

Summer 2020

Journal article titles appearing in thesis/dissertation

  • A pattern-based analytical method for impedance calculation of the power distribution network in mobile platforms
  • Topology-based accurate modeling of current-mode voltage regulator modules for power distribution network design
  • Accurate rectifier characterization and improved modeling of constant power load wireless power transfer systems

Pagination

xiii, 122 pages

Note about bibliography

Includes bibliographic references.

Rights

© 2020 Jingdong Sun, All rights reserved.

Document Type

Dissertation - Open Access

File Type

text

Language

English

Thesis Number

T 11758

Electronic OCLC #

1198499045

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