Expert system, fuzzy logic, and neural network applications inpower electronics and motion control

Artificial intelligence (AI) tools, such as expert systems, fuzzy logic, and neural networks are expected to usher a new era in power electronics and motion control in the coming decades. Although these technologies have advanced significantly and have found wide applications, they have hardly touched the power electronics and machine drives area. The paper describes these AI tools and their application in the area of power electronics and motion control. The body of the paper is subdivided into three sections which describe, respectively, the principles and applications of expert systems, fuzzy logic, and neural networks. The theoretical portion of each topic is of direct relevance to the application of power electronics. The example applications in the paper are taken from the published literature     

提高燃料电池测试设备抗EMI能力的应用研究

电子设备的电磁兼容性指标已成为电子设备在研制时的一个重要的技术要求。燃料电池的各种性能测试过程中所用到的燃料电池测试设备,由于涉及到气体控制、液体控制和电路控制等多种技术领域,引起不同的控制部件之间存在着比较严重的的电磁干扰现象,因此,在燃料电池测试设备的系统设计时需要全面考虑电磁兼容性问题。在介绍燃料电池测试设备的系统概况的同时,详细介绍了燃料电池测试设备在系统设计中采用电磁兼容技术,提高抗电磁干扰能力的各种方法和措施。     

Tin whisker analysis of an automotive engine control unit

Since the 1970s, automobile manufacturers have used electronics for safety–critical automobile control systems such as acceleration, braking, and steering. These electronic systems introduced functionalities in automobiles that were not feasible in a purely mechanical framework, such as anti-lock braking systems and electronic stability control. However, failures of these electronic systems can lead to fatalities, financial losses, legal ramifications, and reputational liabilities for manufacturers. Therefore, automotive electronics must be designed to have minimum failures during use.     

Power electronics and motion control-a future perspective

The author deals with the present status and future perspective of power electronics and motion control. This discussion is particularly relevant today because some electrical engineers believe that motion control is a part of power electronics. However, one belief is that power electronics and motion control are now distinct fields-despite having common technologies and shared roots     

电真空器件用氧化铝陶瓷的介电性能

对影响氧化铝陶瓷介电性能(介电常数、介电损耗和介电强度)的各种因素进行了较为系统的评述,并对相应的影响机理进行了分析和探讨.希望能为电真空用氧化铝陶瓷的质量控制和检验提供理论依据,同时也为工艺方法(包括材料工艺和电真空器件工艺)的选择提供有益的技术参考.     

The Use of Microprocessors for Electronic Engine Control

By the 1984 model year, virtually all spark-ignition passenger cars sold in the United States will contain microprocessor-based electronics to meet prescribed emissions and fuel economy levels. Effective implementation of engine control strategies to meet these objectives through the use of electronics, particularly microprocessor-based electronics. depends on a broad knowledge of many diverse engineering disciplines?from basic concepts of emissions control, through microprocessor and semiconductor memory architecture and operation.     

Software-Reconfigurable e-Learning Platform for Power Electronics Courses

An effective course in power electronics should ideally contain hands-on design and experimental work as well as theory explanation and simulations. In this paper, a software- reconfigurable e-learning platform for power electronics courses is proposed. The aim of the proposed system is to realize a platform capable of constructing a wide range of circuit topologies and control techniques, thus enabling students to gain a better understanding of power electronics converters through practical experiments. The proposed platform consists of a reconfigurable power electronics testbed, a Web-based distance laboratory, and a user interactive e-learning platform. The reconfigurable power electronics testbed can be configured by the students via a Web- based interface to construct a wide variety of converters and inverters. The Internet accessible distance laboratory system permits the instructors and students to remotely conduct experiments over the Internet. The integrated interactive multimedia material can support the educational environment of power electronics courses and can be executed on any modern personal computer (PC) without additional hardware. The advantages of the proposed platform include flexibility, friendly user interface, allow for distance waveform measurements, and removal of laboratory time and space constraints. The positive response from students indicates that the proposed platform is extremely useful for power electronics courses.     

闭环加热控制系统教学设备的设计与应用

介绍了闭环加热控制系统教学设备的设计与应用,一方面,该系统中包括模拟电子技术、数字电子技术、自动控制技术、传感器技术和电力电子技术的实际应用,可用于相关专业的教学;另一方面,该系统具有调温精确、设置温度方便等优点,也可实际应用于工业加热系统。     

Recent advances in power electronics

Recent advances in several key areas of power electronics technology, such as power semiconductor devices, power converter circuits, and control of power electronics, are discussed. The structure and characteristics of IGBT, SIT, SITH, and MCT devices are reviewed. The principal converter types and their recent trends are described. A brief review of power integrated circuits is included. The features of microcomputer and VLSI control are described, and recent advances in microcomputers are highlighted. The principles of expert systems, fuzzy control, and neural networks are presented     

薄膜开关线路丝网印刷技术和常见故障的排除

丝网印刷在电子工程和信息技术领域被广泛应用,开拓出了电子丝网印刷的新的网印市场。电子丝网印刷技术的应用范围很多,如普通线路板印刷、集成线路板印刷、薄膜开关印刷等。由于薄膜开关在电子产品和其它相关的产品中的应用非常广泛,因此,它也就成为电子丝网印刷其主要内容之一。鉴于薄膜开关印刷与一般线路板印刷有所差异,其对印刷质量的要求也比较高,为保证产品质量,要从线路设计、材料选用和掌握印刷技术等各个环节密切注意。     

Personalized voice activated grasping system for a robotic exoskeleton glove

This paper proposes a novel human machine interface (HMI) and electronics system design to control a rehabilitation robotic exoskeleton glove. Such system can be activated with the user’s voice, take voice commands as input, recognize the command and perform biometric authentication in real-time with limited computing power, and execute the command on the exoskeleton. The electronics design is a stand-alone plug-and-play modulated design independent of the exoskeleton design. This personalized voice activated grasping system achieves better wearability, lower latency, and improved security than any existing exoskeleton glove control system.     

Power electronics-an emerging technology

The author presents a tutorial review of power electronics and drives in which the status of the technology and its future are discussed. He focuses on power semiconductor devices, converter circuits, AC machine control, and microcomputer applications in power electronics systems. He examines the impact of computer-aided design and artificial intelligence, and he summarizes the technological trends. He predicts that the technology will grow with increasing momentum as component technologies continue to grow     

装甲车综合电子信息系统设想

通过对装甲平台升级换代需求分析和国外采用的技术路线的回顾,提出坦克综合电子信息系统采用以1553B数据总线为核心的分布式开放体系结构的设想.1553B数据总线是综合电子信息系统的神经网络,它将车内探测/识别系统、执行系统、通信系统、防护系统、检测诊断系统和监控系统有机地联成一个整体,实现信息数据的高速交换和处理.通过对坦克综合电子信息系统组成和工作原理的分析,提出了需要解决的一系列问题.     

An overview to integrated power module design for high power electronics packaging

In recent years, there has been an explosion in demand for smaller and lighter, more efficient, and less expensive power electronic supplies and converters. There are a number of reasons for this recent necessity, ranging from the need for smaller and cheaper power converters for consumer electronics (such as laptop computers and cellular phones) to the need for highly reliable power electronics for such items as satellite and military craft power systems, which are required to be highly efficient, light in weight, smaller in volume, and low cost. This paper discusses the concept of Integrated Power Modules (IPMs), in which the electronic control circuitry and the high power electronics of the converter are integrated into a single compact standardized module. The advantages and disadvantages of such an approach will be discussed in reference to the current industry standard for power electronics design and packaging. The researchers will then take the readers through the IPM design, including basic circuit topology layout, module fabrication processes, and finally thermal considerations.     

论电子产品测试管理体系的建立与实施

主要论述电子产品质量检测监控体系的策划、制订、实施、验证以及体系改进全过程.通过对电子产品的质量特性分析,合理规划监控体系,并根据具体的产品发布时机,选择适当的、充分的测试项目及指标.系统、全面地策划了电子产品质量检测监控活动,包括测试计划的制定,测试活动的实施,测试问题及测试结果的分析,参考历史数据对测试结果及产品质...     

基于线阵CCD的微型光谱仪的研制

为了满足环境污染检测等工业实际应用的需要,便于系统的集成、降低成本,研制了基于CCD芯片的微型光谱仪,重点介绍了仪器的光学和电子学设计。光学系统采用了非对称交叉式Czerny-Turner分光结构,使用线阵CCD为光探测元件;电子学设计部分结合单片机智能化控制的特点和复杂可编程逻辑器件时序准确、可编程的优点实现了高效、灵活的光谱数据采集。 CCD光谱仪的性能测试表明,该光谱仪光谱覆盖范围为350 nm - 780 nm,光谱分辨率达到了0.6 nm,信噪比近500。     

工艺控制保证电子装配产品的质量与可靠性

电子装配的过程,直接关系到电子产品最终的质量与可靠性.本文就电子装配过程的工艺控制,阐述怎样通过工艺控制保证电子产品的质量与可靠性.     

汽车电子技术的应用及发展趋势探究

近年来,随着电子技术工业的不断发展完善,其应用范围翻来越广,逐渐进入我国社会生产的多个领域。汽车工业与电子技术的结合是现代汽车工业与电子技术工业发展的一个趋势,电子技术在汽车工业中的应用越来越多,更多的汽车电子控制系统不断出现。本文从汽车电子技术的概念与发展历程入手,对汽车电子技术的应用现状进行了简单探讨,并在此基础上对汽车电子技术的未来发展趋势和方向进行了研究分析。     

Modern Laboratory-Based Education for Power Electronics and Electric Machines

Power electronics and motor drives are appropriate subjects for an advanced undergraduate or beginning graduate course. The subject is largely application-driven but draws from a broad knowledge base including basic circuits and electronics, control systems, power systems, and semiconductor devices. For many students, a power electronics laboratory can provide an early experience in synthesis, requiring them to use knowledge across their full curriculum with close attention to detail.     

An overview of twenty-five years of electrical and electronicsengineering in the Proceedings of the IEEE, 1963-87

A survey is presented of the history of electrical and electronics engineering as seen in the 136 special issues and special sections of the Proceedings of the IEEE, from 1963 to 1987, in seven areas: circuits and devices (microelectronics and lasers and electrooptics); computers; communications; signals, systems, and control; electromagnetics; energy, power, and industry and engineering and human environment. Special attention is paid to the incremental nature of technological change, the relationship between electrophysics and electrotechnology, and the role of government funding in supporting electronics R&D. It is hoped that setting the `snapshots' of the special issues and special sections in an historical framework will assist future researchers seeking to reach a better understanding of the electronics revolution of the post-Sputnik period