286,457 research outputs found
Functional Verification of Power Electronic Systems
This project is the final work of the degree in Industrial Electronics and
Automatic Engineering. It has global concepts of electronics but it focuses
in power electronic systems.
There is a need for reliable testing systems to ensure the good functionality of power electronic systems. The constant evolution of this products
requires the development of new testing techniques. This project aims to develop a new testing system to accomplish the functional verification of a new
power electronic system manufactured on a company that is in the power
electronic sector . This test system consists on two test bed platforms, one
to test the control part of the systems and the other one to test their functionality. A software to perform the test is also designed. Finally, the testing
protocol is presented.
This design is validated and then implemented on a buck converter and
an inverter that are manufactured at the company. The results show that
the test system is reliable and is capable of testing the functional verification
of the two power electronic system successfully.
In summary, this design can be introduced in the power electronic production process to test the two products ensuring their reliability in the
market
Recommended from our members
Analog and Mixed Signal Verification
More and more electronic systems have components that are not purely digital. Verification of such systems is a much less developed discipline than the digital equivalents and the application of formal (mathematically complete) techniques is a nascent area. In this paper, we will discuss the nature of analog circuit design and describe the way verification is done in practice today. We will describe some “formal” approaches coming from the analog design community. We will describe some of the approaches to formal verification that have been presented in recent literature. Finally, we will mention some areas where there are opportunities for future work
Space shuttle engineering and operations support. Avionics system engineering
The shuttle avionics integration laboratory (SAIL) requirements for supporting the Spacelab/orbiter avionics verification process are defined. The principal topics are a Spacelab avionics hardware assessment, test operations center/electronic systems test laboratory (TOC/ESL) data processing requirements definition, SAIL (Building 16) payload accommodations study, and projected funding and test scheduling. Because of the complex nature of the Spacelab/orbiter computer systems, the PCM data link, and the high rate digital data system hardware/software relationships, early avionics interface verification is required. The SAIL is a prime candidate test location to accomplish this early avionics verification
Certification of lightning protection for a full-authority digital engine control
FADEC systems present many challenges to the lightning protection engineer. Verification of the protection-design adequacy for certification purposes presents additional challenges. The basic requirements of the certification plan of a FADEC is to demonstrate compliance with Federal Airworthiness Regulations (FAR) 25.1309 and 25.581. These FARs are intended for transport aircraft, but there are equivalent sections for general aviation aircraft, normal and transport rotorcraft. Military aircraft may have additional requirements. The criteria for demonstration of adequate lightning protection for a FADEC systems include the procedures outlined in FAA Advisory Circular (AC) 20-136, Protection of aircraft electrical/electronic systems against the indirect effects of lightning. As FADEC systems, including the interconnecting wiring, are generally not susceptible to direct attachment of lightning currents, the verification of protection against indirect effects is primarily described
Towards Multidimensional Verification: Where Functional Meets Non-Functional
Trends in advanced electronic systems' design have a notable impact on design
verification technologies. The recent paradigms of Internet-of-Things (IoT) and
Cyber-Physical Systems (CPS) assume devices immersed in physical environments,
significantly constrained in resources and expected to provide levels of
security, privacy, reliability, performance and low power features. In recent
years, numerous extra-functional aspects of electronic systems were brought to
the front and imply verification of hardware design models in multidimensional
space along with the functional concerns of the target system. However,
different from the software domain such a holistic approach remains
underdeveloped. The contributions of this paper are a taxonomy for
multidimensional hardware verification aspects, a state-of-the-art survey of
related research works and trends towards the multidimensional verification
concept. The concept is motivated by an example for the functional and power
verification dimensions.Comment: 2018 IEEE Nordic Circuits and Systems Conference (NORCAS): NORCHIP
and International Symposium of System-on-Chip (SoC
Understanding multidimensional verification: Where functional meets non-functional
Abstract Advancements in electronic systems' design have a notable impact on design verification technologies. The recent paradigms of Internet-of-Things (IoT) and Cyber-Physical Systems (CPS) assume devices immersed in physical environments, significantly constrained in resources and expected to provide levels of security, privacy, reliability, performance and low-power features. In recent years, numerous extra-functional aspects of electronic systems were brought to the front and imply verification of hardware design models in multidimensional space along with the functional concerns of the target system. However, different from the software domain such a holistic approach remains underdeveloped. The contributions of this paper are a taxonomy for multidimensional hardware verification aspects, a state-of-the-art survey of related research works and trends enabling the multidimensional verification concept. Further, an initial approach to perform multidimensional verification based on machine learning techniques is evaluated. The importance and challenge of performing multidimensional verification is illustrated by an example case study
Strain-tunable band gap in graphene/h-BN hetero-bilayer
Using full-potential density functional calculations within local density
approximation (LDA), we predict that mechanically tunable band-gap and
quasi-particle-effective-mass are realizable in graphene/hexagonal-BN
hetero-bilayer (C/h-BN HBL) by application of in-plane homogeneous biaxial
strain. While providing one of the possible reasons for the experimentally
observed gap-less pristine-graphene-like electronic properties of C/h-BN HBL,
which theoretically has a narrow band-gap, we suggest a schematic experiment
for verification of our results which may find applications in
nano-electromechanical systems (NEMS), nano opto-mechanical systems (NOMS) and
other nano-devices based on C/h-BN HBL.Comment: 9 pages, 8 figure
Apollo experience report: Electronic systems test program accomplishments and results
A chronological record is presented of the Electronic Systems Test Program from its conception in May 1963 to December 1969. The original concept of the program, which was primarily a spacecraft/Manned Space Flight Network communications system compatibility and performance evaluation, is described. The evolution of these concepts to include various levels of test detail, as well as systems level design verification testing, is discussed. Actual implementation of these concepts is presented, and the facility to support the program is described. Test results are given, and significant contributions to the lunar landing mission are underlined. Plans for modifying the facility and the concepts, based on Apollo experience, are proposed
Electronic commerce maturity: a review of the principal models
It has been more than three decades since Nolan proposed his stages of growth model for information systems. Since then several studies on the stages of growth theory appeared in the academic literature. Since models oriented to the management and planning of information systems even models oriented to the development of information systems. But the object of this article is to present the most cited maturity models for the electronic commerce or electronic business and compare them. This comparison will be made using a comparative framework to evaluate electronic business stages of growth models, illustrating perspective, development, emphasis, verification, focus, source, barriers to growth and number of stages
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