《国外电子元器件》2005年总目次

电源及功率器件IR2304半桥驱动集成电路的功能原理及应用[01-44]L4960/4962单片集成开关电源[01-71]降压型转换器在手持产品中的应用[01-77]内含充放电控制与保护系统的半导体照明[02-07]基于PSoC CY8C26233的电子调光镇流器设计[02-48]集电池充电和DC/DC变换于一身的单片LTC1980[03-69]准谐振软开关控制器IRIS4015的设计及应用[04-51]功率因数校正和镇流器控制芯片IR2167(S)[05-69]可编程电池管理芯片bq26500的原理及应用[06-51]MC34063在嵌入式电源设计中的应用[06-73]基于SPI总线的电能计量芯片ATT7022及其在配电监测终端的…     

调光型荧光灯镇流器控制IC

IRS2530D DIM8是一种采用紧凑型8管脚尺寸半桥式驱动器的独特线性调光镇流器控制IC,它提供了一种以多级和三路紧凑型荧光灯（简称CFL）应用取代低效白炽灯泡的解决方案。IRS2530D只需要几个小型外部元件,简化和缩小了电路设计,同时可实现紧凑型荧光灯及线性镇流器多达10％的调光系统性能。     

Octave Signature系列

赛普拉斯半导体公司日前宣布推出用于LED照明的AC—DC数字电源控制器。CY8CLEDACOI／02控制器为不可调光和可调光LED照明提供了高性价比的解决方案,具有高效率并满足EnergyStar要求。他们可进行自动调光检测,因而可以与现存主流的墙上调光器配合使用,最低可下调至2％且无闪烁现象。     

IR推出新的节能萤光灯镇流器控制器IRS2530D和IRS2158D

国际整流器公司（简称IR）日前推出用于节能调光荧光灯镇流器应用的IRS2530D和IRS2158D 600V控制IC。其中IRS2530D DIM8？是一种采用紧凑型8管脚尺寸半桥式驱动器的独特线性调光镇流器控制IC。新器件提供了一种以多级和三路紧凑型荧光灯（简称CFL）应用取代低效白炽灯的解决方案。     

调光型节能灯电子镇流器专用集成电路概述

分析了电子镇流器第一代到第三代的发展概况及其特点、当今世界上调光型节能灯电子镇流器的一些流行做法和一些相关电器,并且就调光型节以有灯电子镇流器专用控制ＩＣ举出实例。     

IRS2xxxD：萤光灯镇流器控制IC

IR推出用于节能调光荧光灯镇流器应用的IRS2530D和IRS2158D 600V控制IC。IRS2530D DIM8是一种采用紧凑型8引脚尺寸半桥式驱动器的独特线性调光镇流器控制IC。新器件提供了“种以多级和三路紧凑型荧光灯（简称CFL）应用取代低效白炽灯泡的解决方案。IRS2530D只需要几个小型外部元件,显著地简化和缩小了电路设计。     

电源管理

赛普拉斯推出用于可调光LED照明的AC-DC电源控制器系列赛普拉斯半导体公司日前宣布推出用于LED照明的AC-DC数字电源控制器。CY8CLEDAC01/02控制器为不可调光和可调光LED照明提供了高性价比的解决方案,具有高效率并满足     

赛普拉斯推出用于可调光LED照明的AC-DC数字电源控制器

赛普拉斯半导体日前宣布推出用于LED照明的AC-DC数字电源控制器。CY8CLEDAC01/02控制器为不可调光和可调光LED照明提供了高性价比的解决方案．具有高效率并满足EnergyStar要求。     

基于IR21592型控制器的调光电子镇流器的原理与设计

介绍IR21592型调光镇流器控制器的特点,详细阐述基于IR21592的36 W荧光灯调光电子镇流器电路的工作原理与设计.     

旧灯改造成两挡调光的LED阅读灯

笔者有一个破旧的采用电子镇流器的荧光阅读灯，电路部分损坏了，灯管也没了．但灯的外壳、电源线及两挡调光开关都还完好，我想把此灯改造成一个可调光的3WLED灯。     

Resolution Enhancement Technology:Integrated Process Solutions using OPC

DUV lithography, using the 248 nm wavelength, is a viable manufacturing option for devices with features at 130 nm and less. Given the low kl value of the lithography, integrated process development is a necessary method for achieving acceptable process latitude. The application of assist features for rule based OPC requires the simultaneous optimization of the mask, illumination optics and the resist.Described in this paper are the details involved in optimizing each of these aspects for line and space imaging.A reference pitch is first chosen to determine how the optics will be set. The ideal sigma setting is determined by a simple geometrically derived expression. The inner and outer machine settings are determined, in turn,with the simulation of a figure of merit. The maximum value of the response surface of this FOM occurs at the optimal sigma settings. Experimental confirmation of this is shown in the paper.Assist features are used to modify the aerial image of the more isolated images on the mask. The effect that the diffraction of the scattering bars (SBs) has on the image intensity distribution is explained. Rules for determining the size and placement of SBs are also given.Resist is optimized for use with off-axis illumination and assist features. A general explanation of the material' s effect is discussed along with the affect on the through-pitch bias. The paper culminates with the showing of the lithographic results from the fully optimized system.     

Cost-effective test solutions for smart card and other integrated flash applications

From its emergence in the late 1980s as a lower cost alternative to early EEPROM technologies, flash memory has evolved to higher densities and speedsand rapidly growing acceptance in mobile applications.In the process, flash memory devices have placed increased test requirements on manufacturers. Today, as flash device test grows in importance in China, manufacturers face growing pressure for reduced cost-oftest, increased throughput and greater return on investment for test equipment. At the same time, the move to integrated flash packages for contactless smart card applications adds a significant further challenge to manufacturers seeking rapid, low-cost test.     

Theoretical analysis of the relationship between the Brillouin gain coefficient and the strain in the optical-fiber sensors

The relation between the power of the Brillouin signal and the strain is one of the bases of the distributed fiber sensors of temperature and strain. The coefficient of the Bfillouin gain can be changed by the temperature and the strain that will affect the power of the Brillouin scattering. The relation between the change of the Brillouin gain coefficient and the strain is thought to be linear by many researchers. However, it is not always linear based on the theoretical analysis and numerical simulation. Therefore, errors will be caused if the relation between the change of the Brillouin gain coefficient and the strain is regarded as to be linear approximately for measuring the temperature and the strain. For this reason, the influence of the parameters on the Brillouin gain coefficient is proposed through theoretical analysis and numerical simulation.     

An improved parallel thinning algorithm with two subiterations

The parallel thinning algorithm with two subiterations is improved in this paper. By analyzing the notions of connected components and passes, a conclusion is drawn that the number of passes and the number of eight-connected components are equal. Then the expression of the number of eight-connected components is obtained which replaces the old one in the algorithm. And a reserving condition is proposed by experiments, which alleviates the excess deletion where a diagonal line and a beeline intersect. The experimental results demonstrate that the thinned curve is almost located in the middle of the original curve connectivelv with single pixel width and the processing speed is high.     

Novel fiber-optical interferometer with miniaturized probe for in-hole measurements

Today, micro-system technology and the development of new MEMS （Micro-Electro-Mechanical Systems） are emerging rapidly. In order for this development to become a success in the long run, measurement systems have to ensure product quality. Most often, MEMS have to be tested by means of functionality or destructive tests. One reason for this is that there are no suitable systems or sensing probes available which can be used for the measurement of quasi inaccessible features like small holes or cavities. We present a measurement system that could be used for these kinds of measurements. The system combines a fiber optical, miniaturized sensing probe with low-coherence interferometry, so that absolute distance measurements with nanometer accuracy are possible.     

Study of waveguide coupling efficiency in hybrid silicon lasers

This paper presents a new method to increase the waveguide coupling efficiency in hybrid silicon lasers. We find that the propagation constant of the InGaAsP emitting layer can be equal to that of the Si resonant layer through improving the design size of the InP waveguide. The coupling power achieves 42% of the total power in the hybrid lasers when the thickness of the bonding layer is 100 nm. Our result is very close to 50% of the total power reported by Intel when the thickness of the thin bonding layer is less than 5 nm. Therefore, our invariable coupling power technique is simpler than Intel＇s.     

Teleportation of an arbitrary unknown N-qubit entangled state under the controlling of M controllers

A new quantum protocol to teleport an arbitrary unknown N-qubit entangled state from a sender to a fixed receiver under M controllers(M < N) is proposed. The quantum resources required are M non-maximally entangled Greenberger-Home-Zeilinger (GHZ) state and N-M non-maximally entangled Einstein-Podolsky-Rosen (EPR) pairs. The sender performs N generalized Bell-state measurements on the 2N particles. Controllers take M single-particle measurement along x-axis, and the receiver needs to introduce one auxiliary two-level particle to extract quantum information probabilistically with the fidelity unit if controllers cooperate with it.     

Diode-end-pumped Nd:YVO4/LBO lasers with 4.2W continuous-wave output at 457 nm

A continuous-wave (CW) 457 nm blue laser operating at the power of 4.2 W is demonstrated by using a fiber coupled laser diode module pumped Nd: YVO4 and using LBO as the intra-cavity SHG crystal With the optimization of laser cavity and crystal parameters, the laser operates at a very high efficiency. When the pumping power is about 31 W, the output at 457nm reaches 4.2 W, and the optical to optical conversion efficiency is about 13.5% accordingly. The stability of the out putpower is better than 1.2% for 8 h continuously working.     

Call for Papers

正Wireless Body-area Networks The last decade has witnessed the convergence of three giant worlds:electronics,computer science and telecommunications.The next decade should follow this convergence in most of our activities with the generalization of sensor networks.In particular with the progress in medicine,people live longer and the aging of population will push the development of wireless personal networks     

Call for Papers—Feature Topic,Vol.12,No.7,2015

正Information Centric Networking Information-Centric Networking(ICN) is an emerging direction in Future Internet architecture research,gaining significant tractions among academia and industry.Aiming to replace the conventional host-to-host communication model by a data-centric model,ICN treats data content as the first