Modeling and Design of Vertical Multiphase Coupled Inductors with Inductance Dual Model

2021 ◽  
Author(s):  
Youssef Elasser ◽  
Jaeil Baek ◽  
Charles R. Sullivan ◽  
Minjie Chen
Keyword(s):  
Dual Model ◽  
Coupled Inductors

scholarly journals Unified Models for Multiphase Coupled Inductors

2020 ◽  
Author(s):  
Minjie Chen
Keyword(s):  
Matrix Model ◽  
Circuit Model ◽  
Experimental Measurements ◽  
Dual Model ◽  
Spice Simulation ◽  
Theoretical Derivation ◽  
Coupled Inductors ◽  
Transformer Model ◽  
Circuit Duality ◽  
Model C

<div> <div> <div> <p>Circuit models for multiwinding coupled magnetics are summarized, compared, and unified. Multiwinding coupled magnetics are classified into parallel coupled structure and series coupled structure. For parallel coupled structure, the relation- ships between a) inductance matrix model, b) extended cantilever model, c) magentic circuit model, d) multiwinding transformer model, e) gyrator-capacitor model, and f) inductance dual model are investigated and discussed. These models represent identical physical relationships in the multiphase coupled magnetics, but show different fundamental principles and offer distinct design insights. The circuit duality between the series coupled structure and parallel coupled structure is revealed. Design equations linking these models are compared and unified. The models and design equations are verified through theoretical derivation, SPICE simulation, and experimental measurements.</p></div></div></div>

scholarly journals Unifying Models for Multiphase Coupled Inductors

2020 ◽  
Author(s):  
Minjie Chen
Keyword(s):  
Matrix Model ◽  
Magnetic Coupling ◽  
Unified Model ◽  
Dual Model ◽  
Coupled Inductors ◽  
Transformer Model ◽  
Modeling Principles

<div>This paper presents a unified model for multiphase</div><div>coupled inductors. By summarizing and comparing three</div><div>different ways of modeling multiphase coupled inductors, including a) an inductance matrix model derived based on self and mutual inductances; b) a multiwinding transformer model derived based on magnetizing and leakage inductances; and c) an inductance dual model derived based on the inverse of the magnetic reluctances. Critical modeling principles and design insights are reviewed, summarized, and compared. The design equations linking the three models are clarified and correlated. The analysis and comparison are rigorously verified through theoretical</div><div>verifications and SPICE simulations. The three different</div><div>models represent identical magnetic coupling relationships in the multiphase coupled inductors, but reveal different fundamental principles and offer distinct design insights.</div>

FORCE MAJEURE, CHANGE OF CIRCUMSTANCES AND TERMINATION OF CONTRACT

2016 ◽  
Vol 3 (1) ◽  
pp. 31-44
Author(s):  
Shiyuan Han
Keyword(s):  
United Nations ◽  
Contract Law ◽  
Unified Model ◽  
The Other ◽  
Final Decision ◽  
Dual Model ◽  
Chinese Law ◽  
Force Majeure ◽  
United Nations Convention ◽  
Distinct Line

It is impossible to draw a distinct line between force majeure and change of circumstances, because the two overlap. In order to regulate both force majeure and change of circumstances, the United Nations Convention on Contracts for the International Sale of Goods (CISG) has adopted a unified model in article 79, whereas Chinese law adopts a dual model by treating them as different things and regulating them in different articles. Where the purpose of a contract becomes impossible to achieve because of a force majeure and both the CISG and Chinese Contract Law (the CCL) adopt the same model of termination of the contract, the contract should be terminated by one party with a notice to the other party instead of ipso facto avoidance. In a case of a change of circumstances, in order to terminate the contract, both the CISG and the CCL actually follow the path of raising an action by a notice of avoidance or termination to theother party. Both approaches have their merits and demerits but the differences between them in practice are not as large as presumed. Where force majeure and change of circumstances overlap each other, possible ways for termination of the contract are for a party either to choose their preferred solution or to follow the lex specialis derogat generali. The latter way is preferred in this article; and while in an action for termination the judge may balance the interests of both parties in making a final decision, the uniform application of the law, the safety of the transaction and the fairness of the judgment may be ensured in so doing.

Semantic Health Mediation and Access Control Manager for Interoperability Among Healthcare Systems

2018 ◽  
Vol 11 (4) ◽  
pp. 87-98
Author(s):  
Abdullah Alamri
Keyword(s):  
Medical Information ◽  
Clinical Information ◽  
Healthcare Systems ◽  
Patient Data ◽  
Dual Model ◽  
Healthcare Organizations ◽  
Reference Information ◽  
Proposed Model ◽  
Definition Of ◽  
Semantic Mediation

Healthcare systems have evolved to become more patient-centric. Many efforts have been made to transform paper-based patient data to automated medical information by developing electronic healthcare records (EHRs). Several international EHRs standards have been enabling healthcare interoperability and communication among a wide variety of medical centres. It is a dual-model methodology which comprises a reference information model and an archetype model. The archetype is responsible for the definition of clinical concepts which has limitations in terms of supporting complex reasoning and knowledge discovery requirements. The objective of this article is to propose a semantic-mediation architecture to support semantic interoperability among healthcare organizations. It provides an intermediate semantic layer to exploit clinical information based on richer ontological representations to create a “model of meaning” for enabling semantic mediation. The proposed model also provides secure mechanisms to allow interoperable sharing of patient data between healthcare organizations.

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